BoatBanter.com

BoatBanter.com (https://www.boatbanter.com/)
-   Cruising (https://www.boatbanter.com/cruising/)
-   -   Suzuki DF4 vs. DF6 (https://www.boatbanter.com/cruising/93460-suzuki-df4-vs-df6.html)

[email protected] May 18th 08 04:13 AM

The Suzuki DF2.5 HP Has Arrived! (And the cooling system is working!)
 
On May 17 Phantman wrote:
Except for the part that says it's still ok when it's not squirting.... unless severe damage occurs lol! I think Salty said it best ... "Truly bizarre".


On Sat, 17 May 08, Jay wrote:
I don't recall that statement (...it's still ok when it's not
squirting.... unless severe damage occurs...) being in the manual.


I wasn't quoting directly, I was combining what it stated in two
separate paragraphs.

Paragraph 1. "Cooling water is intermittently discharged from
the pilot water holes at medium engine speeds. Water is not normally
discharged at other speeds even when the engine is operating
properly"

Paragraph 2.."CAUTION Never operate your outboard
motor when there is no water coming out of the pilot water holes or
severe damage can result".

First it says water isn't always discharged, that's normal, then it
tells you to not operate your motor "when there is no water coming out
of the pilot holes". That looks like a conflict to me. You may be
right that they may mean "in gear" or whatever, but it's still
ambiguous to say the least.

The "bizarre" part, is, when nothing is being discharged, how are you
supposed to KNOW the water pump is working? THAT's what I would ask
the mechanic. Surely you're not supposed to go through that whole
"water pump check" routine every time it stops discharging if that's
supposed to happen intermittantly during normal operation. All I'm
saying is that would make no sense. Not that anything is wrong with
your water pump at the moment. But if you're getting no pilot hole
stream..... how are you supposed to know before the thing overheats?

I'm not knockin' your motor. Suzuki has a good reputation. But there's
something here that makes no sense to me and I'm just trying to
understand what it is.

I already did contact a Suzuki mechanic and he confirmed that
Suzuki calls them pilot holes, not pee or tell-tale holes and that
they serve the same purpose as pee holes and/or tell-tale holes. I
agree that sometimes things appear "bizarre" but sometimes they do
simply because some are not aware of them, not because they are
necessarily in error.


I didn't mean to suggest that there's anything bizarre about calling
them Pilot holes.

Perhaps there's a difference between having the motor idling in
neutral and operating the motor under stress in gear in regards to the
functionality and/or creating possible damage in regards to the
cooling system?


Possibly. But I think you may have missed my point. Probably my fault
for not communicating clearly and I hope I haven't muddied the water
even more with what I've tried to get across here.

Rick

Wayne.B May 18th 08 04:50 AM

The Suzuki DF2.5 HP Has Arrived! (And the cooling system is working!)
 
On Sat, 17 May 2008 17:43:08 -0400, "Gregory Hall"
wrote:

I've run my 20 horse Honda in a 5 gallon pail when no other choice was
available.



Just curious. Why would you do that? Don't you realize that 4-stroke
outboards store almost indefinitely without needing to be run to keep the
piston from corroding and seizing to the cylinder? It's because the
cylinder and rings and piston are bathed by pure oil and not some diluted
mist like in a two-stroke motor. Also, most of the time a single cylinder
four-stroke engine, due to camshaft configuration, will stop with the piston
at or near TDC with the valves closed. This effectively seals the innards
from corrosion causing moisture.


It was a situation onboard my trawler where the Honda had ingested
some bad fuel. I needed to drain the carburetor bowl, clean the fuel
filter screen, and get it running again. It's much easier to do that
kind of work when the engine is not on the dinghy. I had a place to
mount the engine on the back deck and the 5 gallon pail was handy.


Vic Smith May 18th 08 05:04 AM

The Suzuki DF2.5 HP Has Arrived! (And the cooling system is working!)
 
On Sat, 17 May 2008 22:13:49 -0500, lid wrote:



The "bizarre" part, is, when nothing is being discharged, how are you
supposed to KNOW the water pump is working? THAT's what I would ask
the mechanic. Surely you're not supposed to go through that whole
"water pump check" routine every time it stops discharging if that's
supposed to happen intermittantly during normal operation. All I'm
saying is that would make no sense. Not that anything is wrong with
your water pump at the moment. But if you're getting no pilot hole
stream..... how are you supposed to know before the thing overheats?

Not knowing anything about OB cooling systems, a couple questions.
1. If the OB has a thermostat, can it be fully closed?
2. With the OB's you are familiar with, can the engine overheat even
when the pee hole has a stream?
I'm thinking Jay's new OB is designed to discharge all cooling water
through the thermostat, and if it's shut, no stream.
Electronic controls might make that a good way to manage engine
efficiency. It might also have an overheat shutdown.
Though I know OB owners basically worship that peehole stream as the
Holy Grail of engine heat control, it may not so important with this
small engine.
Yeah, I know,
"Paragraph 2.."CAUTION Never operate your outboard
motor when there is no water coming out of the pilot water holes or
severe damage can result".

So it is contradictory. Might have cribbed that from the manual of a
bigger engine. In any case bad manual writing.
And if it doesn't shut down automatically when overheated, a bit
of a dangerous system.

--Vic

Jay[_3_] May 18th 08 06:38 AM

The Suzuki DF2.5 HP Has Arrived! (And the cooling system isworking!)
 
On May 17, 6:42*pm, wrote:
On Sat, 17 May 2008 18:31:51 -0700 (PDT), Jay wrote:
On May 17, 3:02*pm, wrote:
On Sat, 17 May 2008 13:45:22 -0700 (PDT), Jay wrote:
On May 17, 8:40*am, wrote:


Except for the part that says it's still ok when it's not squirting..... unless severe damage occurs lol! *I think Salty said it best ... "Truly bizarre".


I don't recall that statement (...it's still ok when it's not
squirting.... unless severe damage occurs...) being in the manual.


I think I would call a Suzuki mechanic (not a salesman) and get an explanation that makes sense.. And pin him down if necessary. That owners manual is as ambiguous as any I've heard about.


I already did contact a Suzuki mechanic and he confirmed that
Suzuki calls them pilot holes, not pee or tell-tale holes and that
they serve the same purpose as pee holes and/or tell-tale holes. *I
agree that sometimes things appear "bizarre" but sometimes they do
simply because some are not aware of them, not because they are
necessarily in error.


The manual states, "Cooling water is intermittently discharged from
the pilot water holes at medium engine speeds. *Water is not normally
discharged at other speeds even when the engine is operating
properly. *However, cooling system operation can be confirmed as
follows:


1---Place the shift selector lever in the NEUTRAL position with the
motor idling.
2---Increase and decrease the engine speed five or six times in
succession by opening and closing the throttle smoothly and without
stopping in any one throttle position.
3---If water is discharged from the pilot water holes under this
operating condition, the cooling system is working properly. *If
water
is not discharged, stop the engine as soon as possible and consult
your authorized Suzuki Marine dealer."


It then states: *CAUTION *Never OPERATE (perhaps they are referring to
having the motor in GEAR, not NEUTRAL as stated above) your outboard
motor when there is no water coming out of the pilot water holes or
severe damage can
result. *Before setting off, be sure that emergency stop switch
operates properly.


Perhaps there's a difference between having the motor idling in
neutral and operating the motor under stress in gear in regards to the
functionality and/or creating possible damage in regards to the
cooling system?


-Jay


The purpose of a tell-tale, regardless of what you want to call it, is to be a
CONSTANT indicator that the water pump is working.


So it makes no difference in this particular Suzuki model, first
designed and manufactured in 2006, whether or not the engine is under
load (i.e. in gear as opposed to idling in neutral) as to the
necessity of the water pump squirting water out of the pilot holes?


If the tell tale doesn't always have water coming out of it when the engine is
running I would consider that a defect, and a serious one.



That is why ALL small outboards have them. If Suzuki has built an engine with a tell tale, pilot hole, or pee-hole that does not emit water under ALL operating conditions then the only answer is that they made a big mistake in their design, and should issue a recall to rectify it.


One needs to be careful about something being the "only answer" to
any problem. And most would agree that if this motor, which has
powered thousands of boats since 2006, had a serious manufacturing
defect the boating world would most certainly have heard all about it
by now, the recall would have already been in progress and this thread
concerning the matter would never have existed.

So therefore it's not at all possible that a new design created
just 18-24 months ago by Suzuki could have created a motor that is not
like ALL other motors and that no mistake at all was made?


If that's the way it was intended, I would return the motor for a refund. I'm
quite serious. Would you accept an automobile where they told you the oil
pressure warning light would only indicate a problem if you pulled over to the
side of the road and performed a "procedure" to make it work?


I'm not totally disagreeing with your logic; however, in any
unusual situation one perhaps should consider that all things, even in
the same category (i.e. outboard motors) do not work nor are
constructed in exactly the same manner and the analogy between a car's
oil pressure and an outboard's cooling system would only be applicable
if both motorsd/engines were built exactly the same way and one was
talking about exactly the same system within those same motors..

There is no good reason on earth why the cooling water indicator on an outboard should ever stop squirting while the motor is running. *That's a potentially fatal flaw.


Or perhaps there is no good reason I. you or several others can
think of at this time?


Nope. I have this right with no exceptions.


And you very well may be but until you have thoroughtly
disassembled a DF2.5 Suzuki outboard and/or attained a thorough
understanding of how that particular model is constructed and
functions and if it is or isn't different than most outboards, then
your statement is based upon your long-time valuable experience with
outboard motors but NOT THIS ONE so therefore you may or may not "have
this right."

Not trying to disagree with what you're saying but just keeping an
open mind. *I've found that I get used to things being a certain way
in other matters and sometimes have difficulty accepting they could be
done differently and be just as good, and not necessarily "wrong." *I
guess the best way to resolve this issue is perhaps to write American
Suzuki Marine, P.O. Box 1100, Brea, CA 92822 and give 'em the what
for...lol.


Tell you what. *I'll take the boat out soon, putt around the lake
and if no water squirts out all the time and the motor seizes up, I'll
feed it to Suzuki for lunch. *If I putt around the lake and water
doesn't squirt out all the time and nothing overheats and/or seizes
up, I guess then I'll know that they didn't screw up and they did
design a motor to operate exactly as stated in the manual and that all
other fears basesd on other outboard motors are therefore groundless.
Does that sound reasonable?


Only to a fool. Good luck, anyway. That's all you have on your side.


No, that's incorrect. I have a written signed warranty in my hand
and an owner's manual that states exactly what I've reproduced here
and a cousin who's a great attorney. I think I have far more that
luck and would not consider myself a fool. I mean what better way to
prove your point about the motor being manufactured defectively than
to operate it as per the owner's manual and seize it up? And if it
doesn't fail when operating it according to that owner's manual,
well....oooops!

-Jay

Jay[_3_] May 18th 08 06:42 AM

The Suzuki DF2.5 HP Has Arrived! (And the cooling system isworking!)
 
On May 17, 8:13*pm, wrote:
On May 17 Phantman wrote:

Except for the part that says it's still ok when it's not squirting.... unless severe damage occurs lol! *I think Salty said it best ... "Truly bizarre".

On Sat, 17 May 08, Jay wrote:
I don't recall that statement (...it's still ok when it's not
squirting.... unless severe damage occurs...) being in the manual.


I wasn't quoting directly, I was combining what it stated in two
separate paragraphs.

Paragraph 1. "Cooling water is intermittently discharged from
the pilot water holes at medium engine speeds. *Water is not normally
discharged at other speeds even when the engine is operating
properly"

Paragraph 2.."CAUTION *Never operate your outboard
motor when there is no water coming out of the pilot water holes or
severe damage can result".

First it says water isn't always discharged, that's normal, then it
tells you to not operate your motor "when there is no water coming out
of the pilot holes". That looks like a conflict to me. You may be
right that they may mean "in gear" or whatever, but it's still
ambiguous to say the least.

The "bizarre" part, is, when nothing is being discharged, how are you
supposed to KNOW the water pump is working? THAT's what I would ask
the mechanic. Surely you're not supposed to go through that whole
"water pump check" routine every time it stops discharging if that's
supposed to happen intermittantly during normal operation. All I'm
saying is that would make no sense. Not that anything is wrong with
your water pump at the moment. But if you're getting no pilot hole
stream..... how are you supposed to know before the thing overheats?

I'm not knockin' your motor. Suzuki has a good reputation. But there's
something here that makes no sense to me and I'm just trying to
understand what it is.

I already did contact a Suzuki mechanic and he confirmed that
Suzuki calls them pilot holes, not pee or tell-tale holes and that
they serve the same purpose as pee holes and/or tell-tale holes. *I
agree that sometimes things appear "bizarre" but sometimes they do
simply because some are not aware of them, not because they are
necessarily in error.


I didn't mean to suggest that there's anything bizarre about calling
them Pilot holes.

Perhaps there's a difference between having the motor idling in
neutral and operating the motor under stress in gear in regards to the
functionality and/or creating possible damage in regards to the
cooling system?


Possibly. But I think you may have missed my point. Probably my fault
for not communicating clearly and I hope I haven't muddied the water
even more with what I've tried to get across here.

Rick


Rick, I agree there is some ambiguity in the manual (as in many
manuals translated from another language into English) and I'd like to
get this cleared up ASAP. I fully understand the logic regarding the
need to see that water squirting out of the pilot holes at all times
the motor is running and still trying to ascertain why THIS motor,
according to it's poorly-written manual, doesn't find that necessary.

-Jay

Jay[_3_] May 18th 08 06:45 AM

The Suzuki DF2.5 HP Has Arrived! (And the cooling system isworking!)
 
On May 17, 9:04*pm, Vic Smith wrote:

Not knowing anything about OB cooling systems, a couple questions.
1. If the OB has a thermostat, can it be fully closed?
2. With the OB's you are familiar with, can the engine overheat even
when the pee hole has a stream?
I'm thinking Jay's new OB is designed to discharge all cooling water
through the thermostat, and if it's shut, no stream.
Electronic controls might make that a good way to manage engine
efficiency. *It might also have an overheat shutdown.
Though I know OB owners basically worship that peehole stream as the
Holy Grail of engine heat control, it may not so important with this
small engine. *


Yeah, I know,
"Paragraph 2.."CAUTION *Never operate your outboard
motor when there is no water coming out of the pilot water holes or
severe damage can result".

So it is contradictory. *Might have cribbed that from the manual of a
bigger engine. *In any case bad manual writing.
--Vic


Vic, thanks for a possible alternate explanation. I will ask my
Suzuki mechanic about that. And that bit about the "one-size-fits-
all" manual, I've run into that before where it seems like they got
the pages mixed up between two products and what you read doesn't even
apply to one. Thanks.

-Jay


Bruce in Bangkok[_7_] May 18th 08 11:46 AM

The Suzuki DF2.5 HP Has Arrived! (And the cooling system is working!)
 
On Sat, 17 May 2008 22:13:49 -0500, lid wrote:

On May 17 Phantman wrote:
Except for the part that says it's still ok when it's not squirting.... unless severe damage occurs lol! I think Salty said it best ... "Truly bizarre".


On Sat, 17 May 08, Jay wrote:
I don't recall that statement (...it's still ok when it's not
squirting.... unless severe damage occurs...) being in the manual.


I wasn't quoting directly, I was combining what it stated in two
separate paragraphs.

Paragraph 1. "Cooling water is intermittently discharged from
the pilot water holes at medium engine speeds. Water is not normally
discharged at other speeds even when the engine is operating
properly"

Paragraph 2.."CAUTION Never operate your outboard
motor when there is no water coming out of the pilot water holes or
severe damage can result".

First it says water isn't always discharged, that's normal, then it
tells you to not operate your motor "when there is no water coming out
of the pilot holes". That looks like a conflict to me. You may be
right that they may mean "in gear" or whatever, but it's still
ambiguous to say the least.

The "bizarre" part, is, when nothing is being discharged, how are you
supposed to KNOW the water pump is working? THAT's what I would ask
the mechanic. Surely you're not supposed to go through that whole
"water pump check" routine every time it stops discharging if that's
supposed to happen intermittantly during normal operation. All I'm
saying is that would make no sense. Not that anything is wrong with
your water pump at the moment. But if you're getting no pilot hole
stream..... how are you supposed to know before the thing overheats?

I'm not knockin' your motor. Suzuki has a good reputation. But there's
something here that makes no sense to me and I'm just trying to
understand what it is.

I already did contact a Suzuki mechanic and he confirmed that
Suzuki calls them pilot holes, not pee or tell-tale holes and that
they serve the same purpose as pee holes and/or tell-tale holes. I
agree that sometimes things appear "bizarre" but sometimes they do
simply because some are not aware of them, not because they are
necessarily in error.


I didn't mean to suggest that there's anything bizarre about calling
them Pilot holes.

Perhaps there's a difference between having the motor idling in
neutral and operating the motor under stress in gear in regards to the
functionality and/or creating possible damage in regards to the
cooling system?


Possibly. But I think you may have missed my point. Probably my fault
for not communicating clearly and I hope I haven't muddied the water
even more with what I've tried to get across here.

Rick


I think that you are interprets the manual incorrectly. From your
quote I believe it is intended to mean something like:

Water does not come out the hole at all speeds, i.e. no water at low
engine speed..

To check the water pump, put the shift in neutral (so you don't take
off and crash into something) and jazz the throttle, i.e., water comes
out the holes at the higher RPMS

If water doesn't come out the holes call the Dealer.

Try it in your bucket and see if that isn't the case, water comes out
the holes at higher RPMs.

Bruce-in-Bangkok
(correct Address is bpaige125atgmaildotcom)

Wilbur Hubbard[_2_] May 18th 08 04:30 PM

The Suzuki DF2.5 HP Has Arrived! (And the cooling system is working!)
 

wrote in message
...
On Sat, 17 May 2008 23:50:28 -0400, Wayne.B

wrote:

On Sat, 17 May 2008 17:43:08 -0400, "Gregory Hall"
wrote:

I've run my 20 horse Honda in a 5 gallon pail when no other choice was
available.


Just curious. Why would you do that? Don't you realize that 4-stroke
outboards store almost indefinitely without needing to be run to keep the
piston from corroding and seizing to the cylinder? It's because the
cylinder and rings and piston are bathed by pure oil and not some diluted
mist like in a two-stroke motor. Also, most of the time a single cylinder
four-stroke engine, due to camshaft configuration, will stop with the
piston
at or near TDC with the valves closed. This effectively seals the innards
from corrosion causing moisture.


It was a situation onboard my trawler where the Honda had ingested
some bad fuel. I needed to drain the carburetor bowl, clean the fuel
filter screen, and get it running again. It's much easier to do that
kind of work when the engine is not on the dinghy. I had a place to
mount the engine on the back deck and the 5 gallon pail was handy.


I have a Yamaha 9.9 High Thrust outboard on my sailboat. It has the flush
system
where you connect a garden hose to a fitting and run water through it
without
the engine running. I do that probably every two weeks. I'm located up a
river,
so just motoring in from outside, the engine is running for a half mile in
water
with little salt in it, especially when the tide is going out. Still, I
periodically lower a 5 gallon bucket full of fresh water and salt-away on
a rope
and run the engine in that to make sure that saltway does it's thing
everywhere
including the water passages in the head, and the thermostat. The saltaway
disolves all the salt buildup, and leaves a protective film. I have never
been
confident that doing it just via the hose is a perfect system. Thermostats
caked
with salt are trouble. The bucket flush once a month is no big deal
whether it's
really needed or not. Belt AND suspenders for any equipment I rely on.



This misconception about salt build up needs to be ended.

It simply does not happen and it does not happen because salt water
dissolves salt crystals. Hot salt water dissolves salt water crystals even
faster and it is, indeed, hot salt water that circulates through the engine.
Anything other than very tiny, almost invisible to the naked eye salt
crystals simply do not occur. And these are dissolved immediately when a
flow of salt water is again established. Flushing an engine with fresh water
is a placebo for those who can't really think straight. It is a totally
unnecessary practice and will do NOTHING to increase the life of the engine.

And another thing. Salt water lubricates better than fresh water. It is
easier on the rubber impeller in the water pump. Running in fresh water and
rinsing in fresh water decreases the life of the impeller. That's a fact,
Jack!

Wilbur Hubbard



[email protected] May 18th 08 07:32 PM

The Suzuki DF2.5 HP Has Arrived! (And the cooling system is working!)
 
On Sun, 18 May 08, Bruce in Bangkok wrote:
I think that you are interprets the manual incorrectly.


Very possible.

From your
quote I believe it is intended to mean something like:


Water does not come out the hole at all speeds, i.e. no water at low
engine speed.


Right. Low speed would be an "other" speed ("intermittently
discharged from the pilot water holes at medium engine speeds. Water
is not normally discharged at OTHER speeds) .

To check the water pump, put the shift in neutral (so you don't take
off and crash into something) and jazz the throttle, i.e., water comes
out the holes at the higher RPMS

If water doesn't come out the holes call the Dealer.

Try it in your bucket and see if that isn't the case, water comes out
the holes at higher RPMs.


I think we're interpreting the manual the same way except I'm seeing
it say "intermittent" at *medium* speeds and no discharge at "other"
(lower and/or higher?) speeds.
Your explanation may very well be correct though, as well as other
explanations posted. But I hope Suzuki has an explanation that's not
only less ambiguous but something that works to warn immediately of a
failed water pump.

I have a 1968 Evinrude (pre tell-tale model) and even that antique
gives you an immediate indication, with the amount of exhaust spray,
of the status of the water pump.

I'm thinking there's bound to be something they've left out of the
manual.

Rick

Wilbur Hubbard[_2_] May 18th 08 07:33 PM

The Suzuki DF2.5 HP Has Arrived! (And the cooling system is working!)
 

wrote in message
...
On Sun, 18 May 2008 11:30:37 -0400, "Wilbur Hubbard"
wrote:


wrote in message
. ..
On Sat, 17 May 2008 23:50:28 -0400, Wayne.B

wrote:

On Sat, 17 May 2008 17:43:08 -0400, "Gregory Hall"
wrote:

I've run my 20 horse Honda in a 5 gallon pail when no other choice
was
available.


Just curious. Why would you do that? Don't you realize that 4-stroke
outboards store almost indefinitely without needing to be run to keep
the
piston from corroding and seizing to the cylinder? It's because the
cylinder and rings and piston are bathed by pure oil and not some
diluted
mist like in a two-stroke motor. Also, most of the time a single
cylinder
four-stroke engine, due to camshaft configuration, will stop with the
piston
at or near TDC with the valves closed. This effectively seals the
innards
from corrosion causing moisture.

It was a situation onboard my trawler where the Honda had ingested
some bad fuel. I needed to drain the carburetor bowl, clean the fuel
filter screen, and get it running again. It's much easier to do that
kind of work when the engine is not on the dinghy. I had a place to
mount the engine on the back deck and the 5 gallon pail was handy.

I have a Yamaha 9.9 High Thrust outboard on my sailboat. It has the
flush
system
where you connect a garden hose to a fitting and run water through it
without
the engine running. I do that probably every two weeks. I'm located up a
river,
so just motoring in from outside, the engine is running for a half mile
in
water
with little salt in it, especially when the tide is going out. Still, I
periodically lower a 5 gallon bucket full of fresh water and salt-away
on
a rope
and run the engine in that to make sure that saltway does it's thing
everywhere
including the water passages in the head, and the thermostat. The
saltaway
disolves all the salt buildup, and leaves a protective film. I have
never
been
confident that doing it just via the hose is a perfect system.
Thermostats
caked
with salt are trouble. The bucket flush once a month is no big deal
whether it's
really needed or not. Belt AND suspenders for any equipment I rely on.



This misconception about salt build up needs to be ended.

It simply does not happen and it does not happen because salt water
dissolves salt crystals. Hot salt water dissolves salt water crystals even
faster and it is, indeed, hot salt water that circulates through the
engine.
Anything other than very tiny, almost invisible to the naked eye salt
crystals simply do not occur. And these are dissolved immediately when a
flow of salt water is again established. Flushing an engine with fresh
water
is a placebo for those who can't really think straight. It is a totally
unnecessary practice and will do NOTHING to increase the life of the
engine.

And another thing. Salt water lubricates better than fresh water. It is
easier on the rubber impeller in the water pump. Running in fresh water
and
rinsing in fresh water decreases the life of the impeller. That's a fact,
Jack!

Wilbur Hubbard


Okay, we now know you have never torn down and rebuilt an outboard engine.
In
fact, you have never even removed and replaced the thermostat.



I used to make a living repairing motors. What you call salt crystals are
aluminum oxide crystals. Fresh water nor salt water will flush them out.
Muriatic acid will.

Wilbur Hubbard



Richard Casady May 18th 08 09:24 PM

The Suzuki DF2.5 HP Has Arrived! (And the cooling system is working!)
 
On Sun, 18 May 2008 14:33:20 -0400, "Wilbur Hubbard"
wrote:


wrote in message
.. .
On Sun, 18 May 2008 11:30:37 -0400, "Wilbur Hubbard"
wrote:


wrote in message
...
On Sat, 17 May 2008 23:50:28 -0400, Wayne.B

wrote:

On Sat, 17 May 2008 17:43:08 -0400, "Gregory Hall"
wrote:

I've run my 20 horse Honda in a 5 gallon pail when no other choice
was
available.


Just curious. Why would you do that? Don't you realize that 4-stroke
outboards store almost indefinitely without needing to be run to keep
the
piston from corroding and seizing to the cylinder? It's because the
cylinder and rings and piston are bathed by pure oil and not some
diluted
mist like in a two-stroke motor. Also, most of the time a single
cylinder
four-stroke engine, due to camshaft configuration, will stop with the
piston
at or near TDC with the valves closed. This effectively seals the
innards
from corrosion causing moisture.

It was a situation onboard my trawler where the Honda had ingested
some bad fuel. I needed to drain the carburetor bowl, clean the fuel
filter screen, and get it running again. It's much easier to do that
kind of work when the engine is not on the dinghy. I had a place to
mount the engine on the back deck and the 5 gallon pail was handy.

I have a Yamaha 9.9 High Thrust outboard on my sailboat. It has the
flush
system
where you connect a garden hose to a fitting and run water through it
without
the engine running. I do that probably every two weeks. I'm located up a
river,
so just motoring in from outside, the engine is running for a half mile
in
water
with little salt in it, especially when the tide is going out. Still, I
periodically lower a 5 gallon bucket full of fresh water and salt-away
on
a rope
and run the engine in that to make sure that saltway does it's thing
everywhere
including the water passages in the head, and the thermostat. The
saltaway
disolves all the salt buildup, and leaves a protective film. I have
never
been
confident that doing it just via the hose is a perfect system.
Thermostats
caked
with salt are trouble. The bucket flush once a month is no big deal
whether it's
really needed or not. Belt AND suspenders for any equipment I rely on.


This misconception about salt build up needs to be ended.

It simply does not happen and it does not happen because salt water
dissolves salt crystals. Hot salt water dissolves salt water crystals even
faster and it is, indeed, hot salt water that circulates through the
engine.
Anything other than very tiny, almost invisible to the naked eye salt
crystals simply do not occur. And these are dissolved immediately when a
flow of salt water is again established. Flushing an engine with fresh
water
is a placebo for those who can't really think straight. It is a totally
unnecessary practice and will do NOTHING to increase the life of the
engine.

And another thing. Salt water lubricates better than fresh water. It is
easier on the rubber impeller in the water pump. Running in fresh water
and
rinsing in fresh water decreases the life of the impeller. That's a fact,
Jack!

Wilbur Hubbard


Okay, we now know you have never torn down and rebuilt an outboard engine.
In
fact, you have never even removed and replaced the thermostat.



I used to make a living repairing motors. What you call salt crystals are
aluminum oxide crystals. Fresh water nor salt water will flush them out.
Muriatic acid will.


Nothing attacks aluminum oxide: saphire or ruby are aluminum oxide..
Not even slightly reactive with muratic acid.
Muratic will dissolve carbonates very nicely. Calcium and magnesium is
what it is, not aluminum.

Casady

Wilbur Hubbard[_2_] May 18th 08 10:40 PM

The Suzuki DF2.5 HP Has Arrived! (And the cooling system is working!)
 

"Richard Casady" wrote in message
.. .
On Sun, 18 May 2008 14:33:20 -0400, "Wilbur Hubbard"
wrote:


wrote in message
. ..
On Sun, 18 May 2008 11:30:37 -0400, "Wilbur Hubbard"
wrote:


wrote in message
m...
On Sat, 17 May 2008 23:50:28 -0400, Wayne.B

wrote:

On Sat, 17 May 2008 17:43:08 -0400, "Gregory Hall"
wrote:

I've run my 20 horse Honda in a 5 gallon pail when no other choice
was
available.


Just curious. Why would you do that? Don't you realize that 4-stroke
outboards store almost indefinitely without needing to be run to keep
the
piston from corroding and seizing to the cylinder? It's because the
cylinder and rings and piston are bathed by pure oil and not some
diluted
mist like in a two-stroke motor. Also, most of the time a single
cylinder
four-stroke engine, due to camshaft configuration, will stop with the
piston
at or near TDC with the valves closed. This effectively seals the
innards
from corrosion causing moisture.

It was a situation onboard my trawler where the Honda had ingested
some bad fuel. I needed to drain the carburetor bowl, clean the fuel
filter screen, and get it running again. It's much easier to do that
kind of work when the engine is not on the dinghy. I had a place to
mount the engine on the back deck and the 5 gallon pail was handy.

I have a Yamaha 9.9 High Thrust outboard on my sailboat. It has the
flush
system
where you connect a garden hose to a fitting and run water through it
without
the engine running. I do that probably every two weeks. I'm located up
a
river,
so just motoring in from outside, the engine is running for a half
mile
in
water
with little salt in it, especially when the tide is going out. Still,
I
periodically lower a 5 gallon bucket full of fresh water and salt-away
on
a rope
and run the engine in that to make sure that saltway does it's thing
everywhere
including the water passages in the head, and the thermostat. The
saltaway
disolves all the salt buildup, and leaves a protective film. I have
never
been
confident that doing it just via the hose is a perfect system.
Thermostats
caked
with salt are trouble. The bucket flush once a month is no big deal
whether it's
really needed or not. Belt AND suspenders for any equipment I rely on.


This misconception about salt build up needs to be ended.

It simply does not happen and it does not happen because salt water
dissolves salt crystals. Hot salt water dissolves salt water crystals
even
faster and it is, indeed, hot salt water that circulates through the
engine.
Anything other than very tiny, almost invisible to the naked eye salt
crystals simply do not occur. And these are dissolved immediately when a
flow of salt water is again established. Flushing an engine with fresh
water
is a placebo for those who can't really think straight. It is a totally
unnecessary practice and will do NOTHING to increase the life of the
engine.

And another thing. Salt water lubricates better than fresh water. It is
easier on the rubber impeller in the water pump. Running in fresh water
and
rinsing in fresh water decreases the life of the impeller. That's a
fact,
Jack!

Wilbur Hubbard


Okay, we now know you have never torn down and rebuilt an outboard
engine.
In
fact, you have never even removed and replaced the thermostat.



I used to make a living repairing motors. What you call salt crystals are
aluminum oxide crystals. Fresh water nor salt water will flush them out.
Muriatic acid will.


Nothing attacks aluminum oxide: saphire or ruby are aluminum oxide..
Not even slightly reactive with muratic acid.
Muratic will dissolve carbonates very nicely. Calcium and magnesium is
what it is, not aluminum.

Casady


I stand corrected. Your explanation is logical. But the point is salt
crystals cannot remain salt crystals when immersed in a flow of hot fresh or
salt water. The so-called salt crystals are not NaCl salts from salt water
like these idiots seem to think they are.

Wilbur Hubbard



Jay[_3_] May 19th 08 06:29 AM

The Suzuki DF2.5 HP Has Arrived! (And the owner's manual SUCKS!)
 
Thsanks to all for a variety of explanations regarding the operation
of my new Suzuki DF2.5 outboard. In summation we know the following:

1--Suzuki calls, what is normally referred to as pee holes and/or tell-
tales, pilot holes.

2--The owner's manual is poorly written and appears to be
contradictory in regards to the operation of the cooling system.

3--We haven't yet found out whether or not Suzuki has some secret,
high-level design wherein their DF2.5 doesn't operate, in regards to
the cooling system, like the other 10 billion outboards in the Milky
Way galaxy.

4--Jay is not taking the new Suzuki out on the lake until
clarification is ascertained on all of items 1-2-3. Research in
solving the apparent contradictions is ongoing, pervasive, focused and
laced with a dose of chagrin.

-Jay


Edgar May 19th 08 03:40 PM

The Suzuki DF2.5 HP Has Arrived! (And the owner's manual SUCKS!)
 

"Jay" wrote in message
...
Thsanks to all for a variety of explanations regarding the operation
of my new Suzuki DF2.5 outboard. In summation we know the following:

1--Suzuki calls, what is normally referred to as pee holes and/or tell-
tales, pilot holes.

2--The owner's manual is poorly written and appears to be
contradictory in regards to the operation of the cooling system.

3--We haven't yet found out whether or not Suzuki has some secret,
high-level design wherein their DF2.5 doesn't operate, in regards to
the cooling system, like the other 10 billion outboards in the Milky
Way galaxy.

4--Jay is not taking the new Suzuki out on the lake until
clarification is ascertained on all of items 1-2-3. Research in
solving the apparent contradictions is ongoing, pervasive, focused and
laced with a dose of chagrin.

-Jay


What puzzles me about all this is the statement you quoted (IIRC) from the
instruction book saying that under certain conditions water may not be
coming out of the pilot holes when the engine is running, even if all is
well. I have a Yamaha 2.5 4-stroke and the instruction book clearly says
that water must be coming out of the pilot holes at all times when the
engine is running. This is what I would expect. Every motor I have ever used
worked that way.
I believe this is the main point you should take up with your Suzuki dealer.



[email protected] May 19th 08 04:35 PM

The Suzuki DF2.5 HP Has Arrived! (And the owner's manual SUCKS!)
 
On Sun, 18 May 08, Jay wrote:
4--Jay is not taking the new Suzuki out on the lake until
clarification is ascertained on all of items 1-2-3.


Wait a sec. Let's not over react here. Nobody is saying the pushing
ability of your motor is broken or even defective. And even if it were
to crap out, you're no worse off than when you had no motor at all as
long as you have your trusty oars along. Right now the motor is fine.
It's only the monitoring system thats appears a little odd.

Research in
solving the apparent contradictions is ongoing, pervasive, focused and
laced with a dose of chagrin.


Glad to hear you're looking for an explanation but it's way to early
for chagrin. Even a small dose.

Rick

Reno May 19th 08 07:39 PM

The Suzuki DF2.5 HP Has Arrived! (And the cooling system is working!)
 
Are you doing this testing in a bucket or small tank? Too small a tank will
cause enough turbulence, even in neutral, that the water intake may get
intermittent supply. Put the motor on the boat in the lake and try it
again. The comment about checking it in neutral refers to the fact that you
shouldn't put an engine in gear, lean over the back and open the throttle.
It's dangerous on account of you would get thrown out the back and, at a
minimum, laughed at.

The 2.5 hp is very low power so you could tie the boat to the dock and try
it in gear, it won't pull too hard.

From your descriptions it sounds like everything is fine. The poster who
suggested taking it out and seeing what happens was correct. If you want to
avoid potential paddling, tie it to the dock and run the motor in gear
until you feel confident it runs well and then take it for a ride.

Jay[_3_] May 20th 08 11:07 AM

The Suzuki DF2.5 HP Has Arrived! (And the owner's manual SUCKS!)
 
On May 19, 8:35*am, wrote:

On Sun, 18 May 08, Jay *wrote: 4--Jay is not taking the new Suzuki out on the lake until clarification is ascertained on all of items 1-2-3.


Wait a sec. *Let's not over react here. Nobody is saying the pushing ability of your motor is broken or even defective. And even if it were to crap out, you're no worse off than when you had no motor at all as long as you have your trusty oars along. Right now the motor is fine. It's only the monitoring system thats appears a little odd.


Actually, Rick, I'm not really over-reacting; I'm just realizing
that in the entire chain of events here something is amiss and I'm the
type of person who likes ALL the ducks in a row before moving on.
It's not an emotional state, it's a lifestyle. I fully realize that
all is well with the motor in general and the only items left to sift
out in this mystery are the veracity of the owner's manual vs. the
design of the motor and/or both.

Research in solving the apparent contradictions is ongoing, pervasive, focused and laced with a dose of chagrin.


Glad to hear you're looking for an explanation but it's way to early for chagrin. Even a small dose.
Rick


Actually I've chatted with two Suzuki mechanics and both have
scratched their heads regarding the manual and one is going to reach
out to the major shop wizards in the Suzuki USA conglomerate. (And
being unable to figure it out at the local level caused him a bit of
chagrin...I could sense it through ther telephone wires). However,
I'm leaning toward the bogus manual solution but we'll see. I'll let
you know as soon as the word trickles down from the mountain.
-Jay


IanM May 20th 08 11:44 AM

The Suzuki DF2.5 HP Has Arrived! (And the owner's manual SUCKS!)
 
Jay wrote:

On May 19, 8:35 am, wrote:


On Sun, 18 May 08, Jay wrote: 4--Jay is not taking the new Suzuki out on the lake until clarification is ascertained on all of items 1-2-3.



Wait a sec. Let's not over react here. Nobody is saying the pushing ability of your motor is broken or even defective. And even if it were to crap out, you're no worse off than when you had no motor at all as long as you have your trusty oars along. Right now the motor is fine. It's only the monitoring system thats appears a little odd.



Actually, Rick, I'm not really over-reacting; I'm just realizing
that in the entire chain of events here something is amiss and I'm the
type of person who likes ALL the ducks in a row before moving on.
It's not an emotional state, it's a lifestyle. I fully realize that
all is well with the motor in general and the only items left to sift
out in this mystery are the veracity of the owner's manual vs. the
design of the motor and/or both.


Research in solving the apparent contradictions is ongoing, pervasive, focused and laced with a dose of chagrin.



Glad to hear you're looking for an explanation but it's way to early for chagrin. Even a small dose.
Rick



Actually I've chatted with two Suzuki mechanics and both have
scratched their heads regarding the manual and one is going to reach
out to the major shop wizards in the Suzuki USA conglomerate. (And
being unable to figure it out at the local level caused him a bit of
chagrin...I could sense it through ther telephone wires). However,
I'm leaning toward the bogus manual solution but we'll see. I'll let
you know as soon as the word trickles down from the mountain.
-Jay

Personally I'd go for running it at the dock with an electronic
thermometer monitoring the power head (hollow out a little block of
polystyrene so the probe is insulated from the air and tape or wedge the
probe against the cylinder head, with a little dab of thermal transfer
grease (as used for PC CPUs etc.) for good heat conduction, with the
polystyrene over it. Some time spent at varying revs and in and out of
gear and you'll soon know which part of the manual to belive.

Your own observations are likely to be more accurate than a manual that
has suffered in translation . . .

I must note however that unless the cooling water telltale or 'pee hole'
squirts up into the air jetski style, you are very unlikely to notice
a blockage in time. They seem to be more to let you check the impeller
isn't b*****ed beginining of each trip.

There is no simple way of adding an alarm to an engine without an
electrical system at the design stage, One could only design in a
thermal trip that operated the kill switch. Probably there would be
enough false trips to make it a manufacturer's nightmare and a laywers
dream :-(

Perhaps there's a market for a minature watch battery powered alarm
beeper that sticks inside the cowling with a probe that tapes to the
cylinder head.




surfnturf May 22nd 08 01:57 AM

The Suzuki DF2.5 HP Has Arrived!
 
Anyone read manuals for British cars from the 60's?

lol!

surfnturf
wrote in message
...
Jay wrote:
"Water is NOT normally discharged
at other speeds even when the engine is operating properly.


Salty wrote:
Truly bizarre.


Especially when coupled with the part that says:

"Never operate your outboard motor when there
is no water coming out of the pilot water holest".

I think the same guy writes the Honda manuals ;-)

Rick




Richard Casady May 22nd 08 02:11 AM

The Suzuki DF2.5 HP Has Arrived!
 
On Sat, 17 May 2008 07:21:53 -0400, wrote:

You should plan on replacing the impeller every other season regardless of
anything else, including whether the motor was even used or not. It's not a hard
job, but it's an important bit of maintenance.


10 000 miles in a car, at 50 MPH is the same two hundred hours that is
a lot for most small boats. The family ride reached 170 000 miles with
a set of spark plugs that it didn't need, at 100 000 miles. Then it
developed low compression on one cylinder, and I figured the writing
was on the wall and had them put in a rebuilt motor with a warrenty.

Used up a motor with lots of miles, but the water pump never caused
trouble.

Casady

Richard Casady May 22nd 08 04:42 PM

The Suzuki DF2.5 HP Has Arrived!
 
On Wed, 21 May 2008 22:16:49 -0400, wrote:

On Thu, 22 May 2008 01:11:53 GMT,
(Richard Casady)
wrote:

On Sat, 17 May 2008 07:21:53 -0400,
wrote:

You should plan on replacing the impeller every other season regardless of
anything else, including whether the motor was even used or not. It's not a hard
job, but it's an important bit of maintenance.


10 000 miles in a car, at 50 MPH is the same two hundred hours that is
a lot for most small boats. The family ride reached 170 000 miles with
a set of spark plugs that it didn't need, at 100 000 miles. Then it
developed low compression on one cylinder, and I figured the writing
was on the wall and had them put in a rebuilt motor with a warrenty.

Used up a motor with lots of miles, but the water pump never caused
trouble.

Casady


Are you on drugs? Seriously!


I seriously believe that water pumps shouldn't wear out in only a few
hundred hours. How many hours is 170 000 miles? Yacht engines get used
little on the average. 200 hours per year is one figure I read. The
family auto and everything on it have been trouble free for about
5000 hours Gas oil and tires and that was it. Why are boat pumps ****?


Casady

Edgar May 22nd 08 07:29 PM

The Suzuki DF2.5 HP Has Arrived!
 

wrote in message
...
The impeller in a car waterpump is METAL, for openers. Outboard
waterpumps have to work in a very different environment, and so they
are made of flexible materials. They are in contact with the insides
of the pump housing to maintain a needed seal, and the material also
can crack due to plain old aging and loss of flexibility. An outboard
impeller can deteriorate from just age, without having any hours on
it. That's why 2 years is a good time for routinely changing them even
if they have very low hours on them. Likewise, an event where a lot of
sand or mud gets sucked into it, or it is allowed to run while dry
will cause an early death. Running dry ruins them almost instantly.

They aren't ****. They are designed for a different set of rules than
a car water pump. Boats are not automobiles, nor are they airplanes.

An impeller of the type commonly used on outboards and small marine engines
can have too much flexibility. The vanes need to be quite stiff as, after
they have been pushed inwards by the cam, it is their inherent stiffness
that allows them to spring back quickly and thereby suck in more water.
I found this out when an impeller that seemed nice and flexible would pump
just fine at slow revs but would cease to pump at higher revs because the
vanes were too flexible to recover in the time available. I changed it for a
stiffer one and problem disappeared. I have never known one to crack and
think they would have to be out of use for a long time before this happened.
Do not forget that there is always one vane bent inward when the engine is
not in use so it pays to turn the engine over occasionally to move the
impeller around a bit.
Running dry is certainly sudden death to them and so I like to smear the
impeller with soluble oil (hand cleaner) when first starting unprimed in the
spring.



Richard Casady May 22nd 08 09:48 PM

The Suzuki DF2.5 HP Has Arrived!
 
On Thu, 22 May 2008 12:06:29 -0400, wrote:

On Thu, 22 May 2008 15:42:48 GMT,
(Richard
Casady) wrote:

On Wed, 21 May 2008 22:16:49 -0400,
wrote:

On Thu, 22 May 2008 01:11:53 GMT,
(Richard Casady)
wrote:

On Sat, 17 May 2008 07:21:53 -0400,
wrote:

You should plan on replacing the impeller every other season regardless of
anything else, including whether the motor was even used or not. It's not a hard
job, but it's an important bit of maintenance.

10 000 miles in a car, at 50 MPH is the same two hundred hours that is
a lot for most small boats. The family ride reached 170 000 miles with
a set of spark plugs that it didn't need, at 100 000 miles. Then it
developed low compression on one cylinder, and I figured the writing
was on the wall and had them put in a rebuilt motor with a warrenty.

Used up a motor with lots of miles, but the water pump never caused
trouble.

Casady

Are you on drugs? Seriously!


I seriously believe that water pumps shouldn't wear out in only a few
hundred hours. How many hours is 170 000 miles? Yacht engines get used
little on the average. 200 hours per year is one figure I read. The
family auto and everything on it have been trouble free for about
5000 hours Gas oil and tires and that was it. Why are boat pumps ****?


Casady



The impeller in a car waterpump is METAL, for openers. Outboard
waterpumps have to work in a very different environment, and so they
are made of flexible materials. They are in contact with the insides
of the pump housing to maintain a needed seal, and the material also
can crack due to plain old aging and loss of flexibility. An outboard
impeller can deteriorate from just age, without having any hours on
it. That's why 2 years is a good time for routinely changing them even
if they have very low hours on them. Likewise, an event where a lot of
sand or mud gets sucked into it, or it is allowed to run while dry
will cause an early death. Running dry ruins them almost instantly.

They aren't ****.

Good.
They are designed for a different set of rules than
a car water pump. Boats are not automobiles, nor are they airplanes.


That plastic impeller can perhaps have plasticisers leach out over
time, making the thing brittle. I thought all the parts of the car
were connected to the odometer so they can hang on to existance until
the warrantee is up.

Casady

Gregory Hall May 22nd 08 10:30 PM

The Suzuki DF2.5 HP Has Arrived!
 

"Edgar" wrote in message
...

wrote in message
...
The impeller in a car waterpump is METAL, for openers. Outboard
waterpumps have to work in a very different environment, and so they
are made of flexible materials. They are in contact with the insides
of the pump housing to maintain a needed seal, and the material also
can crack due to plain old aging and loss of flexibility. An outboard
impeller can deteriorate from just age, without having any hours on
it. That's why 2 years is a good time for routinely changing them even
if they have very low hours on them. Likewise, an event where a lot of
sand or mud gets sucked into it, or it is allowed to run while dry
will cause an early death. Running dry ruins them almost instantly.

They aren't ****. They are designed for a different set of rules than
a car water pump. Boats are not automobiles, nor are they airplanes.

An impeller of the type commonly used on outboards and small marine
engines can have too much flexibility. The vanes need to be quite stiff
as, after they have been pushed inwards by the cam, it is their inherent
stiffness that allows them to spring back quickly and thereby suck in more
water.
I found this out when an impeller that seemed nice and flexible would pump
just fine at slow revs but would cease to pump at higher revs because the
vanes were too flexible to recover in the time available. I changed it for
a stiffer one and problem disappeared. I have never known one to crack
and think they would have to be out of use for a long time before this
happened. Do not forget that there is always one vane bent inward when the
engine is not in use so it pays to turn the engine over occasionally to
move the impeller around a bit.
Running dry is certainly sudden death to them and so I like to smear the
impeller with soluble oil (hand cleaner) when first starting unprimed in
the spring.


Depends of the brand and model of the motor. I have a 2 HP Seagull that has
a rigid impeller that works by centrifugal force. It can be run dry without
damaging it because it doesn't rub on the housing like the rubber impellers
do. There is no bending, no binding and no reason to turn the engine once in
a while to keep one vane from bending and cracking. The Seagull is clearly
superior to any new Suzuki. It will live in the marine environment for 20-30
years no problem. The Suzuki might last ten years with meticulous care.

--
Gregory Hall



Jere Lull May 23rd 08 02:05 AM

The Suzuki DF2.5 HP Has Arrived!
 
On 2008-05-22 16:48:50 -0400, (Richard
Casady) said:

I thought all the parts of the car were connected to the odometer so
they can hang on to existance until the warrantee is up.


No, it's just good engineering. I was warned by the shop manager to
replace our car's timing belt at the 45k checkup rather than the
manual's 60k. I forgot, and it broke at 46.6k.

Now that reliability is very important to buyers, the car companies
have learned to improve it.

Can anyone remember having to replace tires every 7k miles, tune-ups
twice a year, ball joint replacement?

--
Jere Lull
Xan-à-Deux -- Tanzer 28 #4 out of Tolchester, MD
Xan's pages:
http://web.mac.com/jerelull/iWeb/Xan/
Our BVI trips & tips: http://homepage.mac.com/jerelull/BVI/


Jay[_3_] May 23rd 08 07:35 AM

The Suzuki DF2.5 HP Has Arrived! (Update? From The SuzukiMechanics and Bigwigs)
 
I've talked to several Suzuki mechanics and to Customer Service at USA
Suzuki Marine and here are "answers" (i.e. "information") I received.

1--The amount of water squirting out of the pilot (pee) hole is
determined by the rpms of the motor; the faster the motor revs, the
bigger the stream.

2--The idle setting on the motor is 1800 rpm (which seemed quite peppy
to me) but is needed to be that fast to keep the impeller pumping
water.

3--At some speeds, there will not be a "stream" of water but only a
"mist" that one can feel by putting one's hand in front of the pilot
"pee" hole.

4--The manual still sucks.

5--There was a recsall issued by Suzuki for certain motors within a
serial number range for a defecvtive cooling system. My motor was not
in that group.

And now for what REALLY ****ED ME OFF! I've owned Suzuki motorcycles
and ATVs and have always like products made in Japan; however, in
looking at the motor plate today I saw the words MADE IN THAILAND.
GRRRRRRRRR...even the outsourcees are not outsourcing.


Jay[_3_] May 23rd 08 09:35 AM

The Suzuki DF2.5 HP Has Arrived! (Update On Info From Mechanicsand Suzuki Customer Service)
 
I've talked to several Suzuki mechanics and to Customer Service at
USA
Suzuki Marine and here are "answers" (i.e. "information") I received.

1--The amount of water squirting out of the pilot (pee) hole is
determined by the rpms of the motor; the faster the motor revs, the
bigger the stream.

2--The idle setting on the motor is 1800 rpm (which seemed quite
peppy
to me) but is needed to be that fast to keep the impeller pumping
water at idle/low speed.


3--At some speeds, there will not be a "stream" of water but only a
"mist" that one can feel by putting one's hand in front of the pilot
"pee" hole.


4--The manual still sucks.


5--There was a recall issued by Suzuki for certain motors within a
serial number range for a defective cooling system. My motor was not
in that group.


And now for what REALLY ****ED ME OFF! I've owned Suzuki motorcycles
and ATVs and have always liked the quality and style of products made
in Japan; however, in looking at the motor plate today I saw the words
MADE IN THAILAND stamped therein. GRRRRRRRRR...even our outsourcees
are now outsourcing. Where will it all end?

-Jay
(Who may be reliving dreams about that 5HP air-cooled Briggs &
Stratton outboard he passed up for $699 although it was probably made
in Bangladesh, Nigeria or high in the mountains of Nepal..lol)


Edgar May 23rd 08 10:13 AM

The Suzuki DF2.5 HP Has Arrived!
 

"Gregory Hall" wrote in message
...

Depends of the brand and model of the motor. I have a 2 HP Seagull that
has a rigid impeller that works by centrifugal force. It can be run dry
without damaging it because it doesn't rub on the housing like the rubber
impellers do. There is no bending, no binding and no reason to turn the
engine once in a while to keep one vane from bending and cracking. The
Seagull is clearly superior to any new Suzuki. It will live in the marine
environment for 20-30 years no problem. The Suzuki might last ten years
with meticulous care.

--
Gregory Hall


You are right about Seagulls. Apart from my little Yamaha I have a Seagull
Century Plus that I got new in 1954 and I will never part with it.
It is really useful to be able to run it up dry on the bench so that you are
sure all is in order before you take it to the boat and it has a large
propeller that will push my 15' 6" wooden dinghy up to hull speed.
It is heavy, noisy and oily but I know it will not stop running for anything
as long as you feed it clean fuel. If it should stop you can fix any likely
problem in the boat with just three simple tools.
"They don't make them like that any more!"



[email protected] May 23rd 08 12:37 PM

The Suzuki DF2.5 HP Has Arrived! (Update On Info From Mechanics and Suzuki Customer Service)
 
Well... my original question is addressed in #3, At least we know
there IS and indicator at all times of impeller operation. That's
good.
But now I have a new question brought on by #2. I don't think I've
ever tried to put any motor in gear at 1800 rpm. Are the backs of
your boat seats equipped with head rests? Seems like whiplash may be a
problem ;-)
Seriously though, stay in touch. I'm interested to know how it all
works out over time.

Rick ---- still think you did better than the Briggs & Stratton

On Fri, 23 May 08, Jay wrote:
I've talked to several Suzuki mechanics and to Customer Service at
USA
Suzuki Marine and here are "answers" (i.e. "information") I received.

1--The amount of water squirting out of the pilot (pee) hole is
determined by the rpms of the motor; the faster the motor revs, the
bigger the stream.

2--The idle setting on the motor is 1800 rpm (which seemed quite
peppy
to me) but is needed to be that fast to keep the impeller pumping
water at idle/low speed.


3--At some speeds, there will not be a "stream" of water but only a
"mist" that one can feel by putting one's hand in front of the pilot
"pee" hole.


4--The manual still sucks.


5--There was a recall issued by Suzuki for certain motors within a
serial number range for a defective cooling system. My motor was not
in that group.


And now for what REALLY ****ED ME OFF! I've owned Suzuki motorcycles
and ATVs and have always liked the quality and style of products made
in Japan; however, in looking at the motor plate today I saw the words
MADE IN THAILAND stamped therein. GRRRRRRRRR...even our outsourcees
are now outsourcing. Where will it all end?

-Jay
(Who may be reliving dreams about that 5HP air-cooled Briggs &
Stratton outboard he passed up for $699 although it was probably made
in Bangladesh, Nigeria or high in the mountains of Nepal..lol)


Jay[_3_] May 27th 08 07:02 AM

The Suzuki DF2.5 HP Has Arrived! (And the cooling system isworking!)
 
On May 17, 10:45*pm, Jay wrote:
On May 17, 9:04*pm, Vic Smith wrote:
Not knowing anything about OB cooling systems, a couple questions.
1. If the OB has a thermostat, can it be fully closed?
2. With the OB's you are familiar with, can the engine overheat even
when the pee hole has a stream?
I'm thinking Jay's new OB is designed to discharge all cooling water
through the thermostat, and if it's shut, no stream.
Though I know OB owners basically worship that peehole stream as the
Holy Grail of engine heat control, it may not so important with this
small engine. *



Vic, I think you may have the answer to the way the Suzuki 2.5
works and
the other confusion is just the result of a crappily-written manual.
From what I've gathered about this little OB, the water does not begin
to squirt out the "holes" until the motor reached a certain operating
temperature and the thermostat opens and releases the water to be
squirted out of the holes.

Jay[_3_] May 27th 08 12:18 PM

The Suzuki DF2.5 HP Has Arrived! (See what makes it tick).
 

Being both an outboard motor rookie and a non-mechanic, I'm sure there
are many out there who can look at these diagrams of the inner
workings of my new Suzuki DF2.5 outboard and perhaps get a better idea
on why it seems to operate against the norm. Let me know what you
think after perusing the link.
-Jay

http://store.brownspoint.com/df2.5/2_50607.asp

[email protected] May 27th 08 06:26 PM

The Suzuki DF2.5 HP Has Arrived! (See what makes it tick).
 
What a cute little motor :-)
Having perused the parts breakdown, I do believe I could take it
completely apart and put it back together again. But I'm still not
sure I see the advantage of designing the cooling system monitor the
way it is. As long as it warns you in advance though, to shut down
before you burn up, I say what the hey. Run with it. Looks like a
spiffy litte motor to me.
Rick

On Tue, 27 May 08, Jay wrote:
Being both an outboard motor rookie and a non-mechanic, I'm sure there
are many out there who can look at these diagrams of the inner
workings of my new Suzuki DF2.5 outboard and perhaps get a better idea
on why it seems to operate against the norm. Let me know what you
think after perusing the link.
-Jay


http://store.brownspoint.com/df2.5/2_50607.asp


Vic Smith May 28th 08 03:18 AM

The Suzuki DF2.5 HP Has Arrived! (And the cooling system is working!)
 
On Mon, 26 May 2008 23:02:07 -0700 (PDT), Jay
wrote:


Vic, I think you may have the answer to the way the Suzuki 2.5
works and
the other confusion is just the result of a crappily-written manual.
From what I've gathered about this little OB, the water does not begin
to squirt out the "holes" until the motor reached a certain operating
temperature and the thermostat opens and releases the water to be
squirted out of the holes.


Poor telltales are probably more common than peehole gazers think.
http://www.thehulltruth.com/forums/t...91970&posts=10
I've seen it mentioned with OB's other than Mercs too.
IMO, that telltale is of limited use anyway, slightly better than
nothing.
Mostly when starting up - in some cases waiting a couple minutes until
the thermostat opens to see the flow.
Then what? When I was running small OB's I would sometimes run wide
open for 1/2 an hour or more - looking where I was going and for
overtakers, not all twisted up backwards like a pretzel around the
motor staring at a telltale.
In all the years I've fished on many different boats with many
different engines and owners, I never saw anybody pay any attention to
the telltale after the initial warmup and on subsequent restarts, when
you're backwards cranking the rope anyway.
Maybe half a minute after a pump failure before it starts affecting
operation. Some designs might give you time to shut it down before
any harm is done, others might not be so forgiving.
Never happened to me, so that's speculation.
I suspect the newer big ones have a temp sensor to throw an alarm or
do a shutdown.
Follow the impeller/thermostat maintenance schedule, check the
telltale when you start it up, then forget about it or you'll get a
twisted neck and maybe run into something.
That's my take on it.
The only owner experience I found was
http://www.ybw.com/forums/showflat.php?Number=1163278 which basically
says the same thing you've been saying.
And this
http://macgregor26x.com/phpBB/viewto...ad0c a9faf140
Where the owner says the 1800 rpm idle is to meet the emissions target
Suzuki was aiming at, and that he monkeyed with the idle to lower it,
but then has to choke it to run smooth. Doesn't mention telltale.
This motor has been around a while, and to find so little about it is
probably a good thing.

--Vic

Jay[_3_] May 28th 08 05:34 AM

The Suzuki DF2.5 HP Has Arrived! (See what makes it tick).
 
On May 27, 10:26*am, wrote:
What a cute little motor *:-)
Having perused the parts breakdown, I do believe I could take it
completely apart and put it back together again.


Well, Rick, I knew a "nuts and bolts guy" like yourself would enjoy
the parts diagram approach...lol. To you, it's not the sum total of
the parts, IT'S THE PARTS...LOL But that's cool 'cause what would the
world do without the details detail? So when do you want to come
visit and take my motor apart and put it back together again? I'd
need a hefty deposit though (insurance) before you started.

-Jay

[email protected] May 28th 08 03:43 PM

Suzuki DF4 vs. DF6
 
Go electric!


Why? Electricity comes from largely fossil-fueled sources.
The factories that make the electric motors & the batteries are
not really "clean" ecologically. Even if you largely recharge from
solar panels, the pollution footprint from an electric outboard will
be about 90% (or more) that of a regular gasoline outboard.

OTOH these factors are certain to change in the next few decades.

Another key difference is that the electric motor is quiet, reliable,
produces it's torque efficiently at across a much wider range of
RPMs, and won't leave stinky exhaust or an oil slick in your immediate
environment... which may be nice in many situations.

"Don White" wrote:
I have a 30 lb. thrust Minn-Kota we used on a dinghy we once had
but didn't think that would even budge the 14' aluminum boat. What
thrust rating would you think it would take in an electric to achieve
the same speed/power as the 4HP Suzuki DF4M?


Well, you need to know the torque specs more than HP. It might help to
look
at the European specs for a range of motors, usually they specify
power in KW
not HP, so you can compare more directly.

As a general rule of thumb, a 32-lb thrust motor is approx equal to a
5 HP.


My 2004 Princecraft Yukon (14.5' open aluminum boat) came with an electric
trolling motor.. and from what I've seen it's only good for creeping along
as long as you're in protected calm water with no wind. I use it to take me
from the launch ramp to a nearby dock and back again when it's time to
retrieve.


Yeah, but it was designed for TROLLING! Try putting a slightly higher
pitch prop
on it, and see what you get.

I think oars would do just as good a job and be more reliable.


HERESY! HERESY!!
"We have found a witch, may we burn him?"

Fresh Breezes- Doug King

Richard Casady May 28th 08 09:23 PM

Suzuki DF4 vs. DF6
 
On Wed, 28 May 2008 07:43:48 -0700 (PDT), wrote:

As a general rule of thumb, a 32-lb thrust motor is approx equal to a
5 HP.


How do you figure? Thrust times speed equals HP. 1 pound of thrust
equals one HP at 375 MPH, for what its worth. To get that much power
with 32 pounds thrust requires a speed of almost 60 MPH. One HP is
about 745 watts or 550 foot pounds per second. Incidently, 5 HP
requires about 300 amps at 12 v. This will kill a reasonably big
battery in next to no time. As a general rule of thumb, thrust is only
loosely related to power.

Casady

Jay[_3_] May 28th 08 09:28 PM

The Suzuki DF2.5 HP Has Arrived! (See what makes it tick).
 
On May 28, 3:33*am, wrote:
Those diagrams don't have the information you would need to answer the question intelligently or correctly.


Actually, the diagrams of the motor components were presented
primarily so Rick could get a look at the inner workings of the little
OB. They weren't meant to be a definitive problem-solver of any sort.


It wouldn't matter if it did. Simple logic alone says that if a
cooling telltale operates intermittantly when the engine is running
fine, it is completely useless as a telltale to warn you when there is
trouble.

xxxxxxxxxxxxxxxxxxxxxxxxxxx

Only if one is putting all of one's marbles in the "tell-tale"
basket and assuming (perhaps correctly, perhaps incorrectly) there is
no other warning system that the motor is overheating. Perhaps there
could be a loud alarm when the temperature reaches critical levels or
maybe a microchip inside connected to an artificial voice device talks
to you in a very loud voice warning the operator of the imminent
danger or maybe there's an "idiot light" like on cars or (gasp) even
an gauge to monitor internal motor temps.

Is the following a fair analogy? In an automobile engine, when the
thermostat opens (indicating the water in the 'jacket' around the
engine is getting too hot and it's time to be cooled), it "pees" the
hot water back into the radiator to be cooled anew whereas, when the
outboard gets too hot, the thermostat opens and "pees" the water back
into the lake and the water pump of the outboard brings in new cool
water from the lake (in essence, the outboard motor's "radiator"),
just like the radiator sends cooled water to the engine jacket to
replace the water "peed" out by the thermostat, to keep the outboard
running at a normal operating temperature and preventing damage.

So, (just speculating here), if the little Suzuki operates the same
way, then water would NOT be coming out of the "pee holes" all the
time, would it? It would only be expelled when necessary (i.e., when
the internal thermostat said the water currently cooling the motor was
too hot to properly do its job and fresh, cooler water was needed.
Therefore, it would "pee" out the old and bring in fresh, cooler water
from the lake to replace it --- ONLY when necessary...thus the
"intermittent" ejection of water.

Just my attempt at "simple logic" as stated by the previous
author. Am I way off here in this stab at deductive reasoning?

-Jay




Richard Casady May 28th 08 09:31 PM

Suzuki DF4 vs. DF6
 
On Wed, 28 May 2008 12:02:53 -0400, wrote:

I guesstimated
that it might barely compete with a 2 HP 2-stroke at best. That would
be running it at full power which gave you about an hour or less of
runtime.


You do realize that two horse is about 125 amps at 12 volts. I HP is
745 watts or 550 foot pounds/second. Assuming you are good to your
battery and discharge it down to 50%, you will need the biggest
battery made to run it for an hour. That is, a hundred fifty pound
battery. No way.

Casady

Jay[_3_] May 28th 08 09:41 PM

The Suzuki DF2.5 HP Has Arrived!
 
On May 28, 1:28*pm, Jay wrote:
On May 28, 3:33*am, wrote:

Those diagrams don't have the information you would need to answer the question intelligently or correctly.


Actually, the diagrams of the motor components were presented
primarily so Rick could get a look at the inner workings of the little
OB. *They weren't meant to be a definitive problem-solver of any sort.

It wouldn't matter if it did. Simple logic alone says that if a
cooling telltale operates intermittantly when the engine is running
fine, it is completely useless as a telltale to warn you when there is
trouble.

xxxxxxxxxxxxxxxxxxxxxxxxxxx

Only if one is putting all of one's marbles in the "tell-tale"
basket and assuming (perhaps correctly, perhaps incorrectly) there is
no other warning system that the motor is overheating. *Perhaps there
could be a loud alarm when the temperature reaches critical levels or
maybe a microchip inside connected to an artificial voice device talks
to you in a very loud voice warning the operator of the imminent
danger or maybe there's an "idiot light" like on cars or (gasp) even
an gauge to monitor internal motor temps.

Is the following a fair analogy? *In an automobile engine, when the
thermostat opens (indicating the water in the 'jacket' around the
engine is getting too hot and it's time to be cooled), it "pees" the
hot water back into the radiator to be cooled anew whereas, when the
outboard gets too hot, the thermostat opens and "pees" the water back
into the lake and the water pump of the outboard brings in new cool
water from the lake (in essence, the outboard motor's "radiator"),
just like the radiator sends cooled water to the engine jacket to
replace the water "peed" out by the thermostat, to keep the outboard
running at a normal operating temperature and preventing damage.

So, (just speculating here), if the little Suzuki operates the same
way, then water would NOT be coming out of the "pee holes" all the
time, would it? *It would only be expelled when necessary (i.e., when
the internal thermostat said the water currently cooling the motor was
too hot to properly do its job and fresh, cooler water was needed.
Therefore, it would "pee" out the old and bring in fresh, cooler water
from the lake to replace it --- ONLY when necessary...thus the
"intermittent" ejection of water.

Just my attempt at "simple logic" as stated by the previous
author. *Am I way off here in this stab at deductive reasoning?

-Jay



Jay[_3_] May 29th 08 12:05 AM

The Suzuki DF2.5 HP
 
On May 28, 2:37*pm, wrote:
On Wed, 28 May 2008 13:28:48 -0700 (PDT), Jay wrote:
On May 28, 3:33*am, wrote:
Those diagrams don't have the information you would need to answer the question intelligently or correctly.


Actually, the diagrams of the motor components were presented
primarily so Rick could get a look at the inner workings of the little
OB. *They weren't meant to be a definitive problem-solver of any sort.


It wouldn't matter if it did. Simple logic alone says that if a
cooling telltale operates intermittantly when the engine is running
fine, it is completely useless as a telltale to warn you when there is
trouble.


xxxxxxxxxxxxxxxxxxxxxxxxxxx


Only if one is putting all of one's marbles in the "tell-tale"
basket and assuming (perhaps correctly, perhaps incorrectly) there is
no other warning system that the motor is overheating. *


If the tell tale operates as you say it does, then it doesn't need to exist at
all.

Perhaps there
could be a loud alarm when the temperature reaches critical levels or
maybe a microchip inside connected to an artificial voice device talks
to you in a very loud voice warning the operator of the imminent
danger or maybe there's an "idiot light" like on cars or (gasp) even
an gauge to monitor internal motor temps.


More wishful dreaming



Unless, of course, an outboard you had never heard of came out that
had a device to warn the operator of overheating.


Is the following a fair analogy? *In an automobile engine, when the
thermostat opens (indicating the water in the 'jacket' around the
engine is getting too hot and it's time to be cooled), it "pees" the
hot water back into the radiator to be cooled anew whereas, when the
outboard gets too hot, the thermostat opens and "pees" the water back
into the lake and the water pump of the outboard brings in new cool
water from the lake (in essence, the outboard motor's "radiator"),
just like the radiator sends cooled water to the engine jacket to
replace the water "peed" out by the thermostat, to keep the outboard
running at a normal operating temperature and preventing damage.


So, (just speculating here), if the little Suzuki operates the same
way, then water would NOT be coming out of the "pee holes" all the
time, would it? *It would only be expelled when necessary (i.e., when
the internal thermostat said the water currently cooling the motor was
too hot to properly do its job and fresh, cooler water was needed.
Therefore, it would "pee" out the old and bring in fresh, cooler water
from the lake to replace it --- ONLY when necessary...thus the
"intermittent" ejection of water.


Nope. You have it completely wrong from start to finish to the point of
absurdity. The pee hole is an INDICATOR. It is not the outlet for all of the
water in the cooling circuits. The amount of water that comes out of it is very
small and could never be the outlet for all of the cooling water. The water in
an outboard constantly circulates from the pump, up the leg and back down again
to exit either through the center of the prop or an exhaust port. When the
thermostat opens, it ADDITIONALLY allows the water to additionally circulate
through cooling passages in the cyclinder head and crankcase to cool them. The
purpose of the pee-hole is to tell you that the water pump is not running dry,
and is pumping water up to the engine area where the pee-hole resides. That's a
critical, do or die, piece of information.


Okay, in an automobile, what device performs the do or die piece of
information to indicate that the car's water pump is working or not?
A temp gauge or red light? IOW, to say that the water pump is running
dry is also to say the motor is overheating, isn't it? Doesn't one
immediately lead to the other? Therefore, it would seem like all the
processes are really interconnected.

So you're saying the water coming out of the pee holes is not water
being released by the thermostat in the Suzuki DF2.5? Yes or no?

Just my attempt at "simple logic" as stated by the previous
author. *Am I way off here in this stab at deductive reasoning?


Yes. You couldn't be further off if you knew everything about engines and were
deliberately making up a fairy tale.


But didn't you think it was an interesting fairy tale? Finally, if
this Suzuki outboard of mine runs for several years with water only
INTERMITTENTLY coming out of the "pee" holes and it never overheats,
will you still cling to the notion that it's a defective piece of
equipment? IOW, will you argue and continue to denigrate
a successful and non-defective outboard motor design?

Finally, is the goat that is sacrificed at the altar of the pee
hole required to be a virgin nanny? lol

-Jay
(still sorting all of this out)




All times are GMT +1. The time now is 01:24 AM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004 - 2014 BoatBanter.com