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Jay[_3_] Jay[_3_] is offline
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First recorded activity by BoatBanter: Apr 2008
Posts: 66
Default 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.


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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)