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JohnH
 
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Default Detroit Diesel (DD671N) Questions

On Tue, 24 Jan 2006 19:17:09 -0500, "Eisboch" wrote:


"Wayne.B" wrote in message
.. .
On Wed, 25 Jan 2006 00:31:55 +0100, "Steve Lusardi"
wrote:

I think you should identify symtoms,
if you want meaningful help.


It's a 1981 Johnson & Towers marine conversion, supposedly rebuilt
within the last 1,000 hours or so by the previous owner.

My port side engine is taking longer to cold start than it used to,
sometimes needing 8 to 12 seconds of cranking. It used to start on
the first or second turn even when stone cold, and the starboard
engine still does. If it has been run within a day or two it still
starts very quickly. There is very little exhaust smoke at startup
even when cold, and what little there is goes away quickly. The
engine is running well and making full power as far as I can
determine.


There's a guy at our marina who had a somewhat similar problem for a couple
of years. Turns out he had a very small air leak in the fuel supply line
for one engine. It would run fine after starting, (I assume because the
leak was overcome by fuel, but that is pure speculation), but was hard
starting.

Ain't boats fun?

Eisboch (grandkid #5 is a girl!)

Congrats! So what's the score now. I've got 4 grandsons, 1 granddaughter.
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Eisboch
 
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Default Detroit Diesel (DD671N) Questions


"JohnH" wrote in message
...

Eisboch (grandkid #5 is a girl!)

Congrats! So what's the score now. I've got 4 grandsons, 1 granddaughter.



Three girls, two boys. Need one more to even up the score.

Eisboch


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Dan Krueger
 
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Default Detroit Diesel (DD671N) Questions

Eisboch wrote:

"JohnH" wrote in message
...

Eisboch (grandkid #5 is a girl!)


Congrats! So what's the score now. I've got 4 grandsons, 1 granddaughter.




Three girls, two boys. Need one more to even up the score.

Eisboch


The M5 makes it an even score!

Dan
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Eisboch
 
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Default Detroit Diesel (DD671N) Questions


"Dan Krueger" wrote in message
ink.net...
Eisboch wrote:

"JohnH" wrote in message
...

Eisboch (grandkid #5 is a girl!)


Congrats! So what's the score now. I've got 4 grandsons, 1 granddaughter.




Three girls, two boys. Need one more to even up the score.

Eisboch

The M5 makes it an even score!

Dan


Ah! The other "baby". Still working on the mandatory 1200 mile break in
procedure.
Pretty much got the hang of driving a manual without a clutch pedal though.
During break in you have to limit max RPM to 5500, so shifts are done around
4000-4500. After the break in period, max RPM is 8200 RPM with shifts around
6500 - 7000 which is getting into the engine's powerband. Can't wait to try
the "S6" mode. This car is going to get me in a lot of trouble.

Eisboch


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posted to rec.boats
JohnH
 
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Default Detroit Diesel (DD671N) Questions

On Tue, 24 Jan 2006 20:15:54 -0500, "Eisboch" wrote:


"Dan Krueger" wrote in message
link.net...
Eisboch wrote:

"JohnH" wrote in message
...

Eisboch (grandkid #5 is a girl!)


Congrats! So what's the score now. I've got 4 grandsons, 1 granddaughter.



Three girls, two boys. Need one more to even up the score.

Eisboch

The M5 makes it an even score!

Dan


Ah! The other "baby". Still working on the mandatory 1200 mile break in
procedure.
Pretty much got the hang of driving a manual without a clutch pedal though.
During break in you have to limit max RPM to 5500, so shifts are done around
4000-4500. After the break in period, max RPM is 8200 RPM with shifts around
6500 - 7000 which is getting into the engine's powerband. Can't wait to try
the "S6" mode. This car is going to get me in a lot of trouble.

Eisboch


Go visit Montana. I understand they're pretty lenient on speed out there. I
rode across the state and didn't get a ticket. That's proof.
--
John H

******Have a spectacular day!******


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Calif Bill
 
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Default Detroit Diesel (DD671N) Questions


"JohnH" wrote in message
...
On Tue, 24 Jan 2006 20:15:54 -0500, "Eisboch" wrote:


"Dan Krueger" wrote in message
hlink.net...
Eisboch wrote:

"JohnH" wrote in message
...

Eisboch (grandkid #5 is a girl!)


Congrats! So what's the score now. I've got 4 grandsons, 1
granddaughter.



Three girls, two boys. Need one more to even up the score.

Eisboch
The M5 makes it an even score!

Dan


Ah! The other "baby". Still working on the mandatory 1200 mile break in
procedure.
Pretty much got the hang of driving a manual without a clutch pedal
though.
During break in you have to limit max RPM to 5500, so shifts are done
around
4000-4500. After the break in period, max RPM is 8200 RPM with shifts
around
6500 - 7000 which is getting into the engine's powerband. Can't wait to
try
the "S6" mode. This car is going to get me in a lot of trouble.

Eisboch


Go visit Montana. I understand they're pretty lenient on speed out there.
I
rode across the state and didn't get a ticket. That's proof.
--
John H

******Have a spectacular day!******


When the nationwide 55 speed limit was in affect. Wyoming gave a $5 wasting
natural resources ticket. Probably the same in Montana. Unless you are in
one of the speed zone areas.


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Calif Bill
 
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Default Detroit Diesel (DD671N) Questions

Appears the 671 has 2 valves.
http://www.dieseldhp.com/cgi-bin/get....cgi?refno=140


"Calif Bill" wrote in message
nk.net...

"JohnH" wrote in message
...
On Tue, 24 Jan 2006 20:15:54 -0500, "Eisboch" wrote:


"Dan Krueger" wrote in message
thlink.net...
Eisboch wrote:

"JohnH" wrote in message
...

Eisboch (grandkid #5 is a girl!)


Congrats! So what's the score now. I've got 4 grandsons, 1
granddaughter.



Three girls, two boys. Need one more to even up the score.

Eisboch
The M5 makes it an even score!

Dan

Ah! The other "baby". Still working on the mandatory 1200 mile break
in
procedure.
Pretty much got the hang of driving a manual without a clutch pedal
though.
During break in you have to limit max RPM to 5500, so shifts are done
around
4000-4500. After the break in period, max RPM is 8200 RPM with shifts
around
6500 - 7000 which is getting into the engine's powerband. Can't wait to
try
the "S6" mode. This car is going to get me in a lot of trouble.

Eisboch


Go visit Montana. I understand they're pretty lenient on speed out there.
I
rode across the state and didn't get a ticket. That's proof.
--
John H

******Have a spectacular day!******


When the nationwide 55 speed limit was in affect. Wyoming gave a $5
wasting natural resources ticket. Probably the same in Montana. Unless
you are in one of the speed zone areas.



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posted to rec.boats
Calif Bill
 
Posts: n/a
Default Detroit Diesel (DD671N) Questions

And the 4 valve is a Turbo intercooler head.
http://boatdiesel.com/Forums/Index.c...108&CFIDC=NRU2

"Calif Bill" wrote in message
nk.net...

"JohnH" wrote in message
...
On Tue, 24 Jan 2006 20:15:54 -0500, "Eisboch" wrote:


"Dan Krueger" wrote in message
thlink.net...
Eisboch wrote:

"JohnH" wrote in message
...

Eisboch (grandkid #5 is a girl!)


Congrats! So what's the score now. I've got 4 grandsons, 1
granddaughter.



Three girls, two boys. Need one more to even up the score.

Eisboch
The M5 makes it an even score!

Dan

Ah! The other "baby". Still working on the mandatory 1200 mile break
in
procedure.
Pretty much got the hang of driving a manual without a clutch pedal
though.
During break in you have to limit max RPM to 5500, so shifts are done
around
4000-4500. After the break in period, max RPM is 8200 RPM with shifts
around
6500 - 7000 which is getting into the engine's powerband. Can't wait to
try
the "S6" mode. This car is going to get me in a lot of trouble.

Eisboch


Go visit Montana. I understand they're pretty lenient on speed out there.
I
rode across the state and didn't get a ticket. That's proof.
--
John H

******Have a spectacular day!******


When the nationwide 55 speed limit was in affect. Wyoming gave a $5
wasting natural resources ticket. Probably the same in Montana. Unless
you are in one of the speed zone areas.



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