Detroit Diesel (DD671N) Questions
 

On Tue, 24 Jan 2006 19:35:50 -0600, dazed and confuzzed
wrote:

Do you have any high points in the system where air could collect?


Don't think so but I'll take another look.

Do you have a mechanical fuel supply pump or an electrical one?

Mechanical

Hoses or hard pipe from the tank(s)?

Hoses

Detroit Diesel (DD671N) Questions
 

On Tue, 24 Jan 2006 20:50:45 -0500, "Eisboch" wrote:

It seems logical though that if that engine is otherwise running fine, you
are getting your RPMs and you are not producing smoke more than the other
engine, that a compression problem due to rings or valves is not likely.

That would be the better out come for sure.

Detroit Diesel (DD671N) Questions
 

On Tue, 24 Jan 2006 20:34:46 -0500, Larry wrote:

No valves. Intake ports and exhaust ports open as the piston
passes over them near BDC when the blower recharges the air and
blows out the dead gases.

That's what I thought but everyone else says there are exhaust valves
in the head.

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.

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.

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.

Detroit Diesel (DD671N) Questions
 

Wayne.B wrote:
On Tue, 24 Jan 2006 20:34:46 -0500, Larry wrote:


No valves. Intake ports and exhaust ports open as the piston
passes over them near BDC when the blower recharges the air and
blows out the dead gases.


That's what I thought but everyone else says there are exhaust valves
in the head.

There are valves.
Check:
http://www.yachtsurvey.com/comparing_diesel_types.htm

Courtesy of Detroit diesel!

Gaz

Detroit Diesel (DD671N) Questions
 

Gary wrote in news:C1EBf.325410$2k.236563@pd7tw1no:

There are valves.
Check:
http://www.yachtsurvey.com/comparing_diesel_types.htm

Courtesy of Detroit diesel!



He's right....Sorry.

Detroit Diesel (DD671N) Questions
 

Wow!! This goes on and on.

As most everyone has said the most likely culprit is fuel system related.
In my experience air leaks are very rare except when the engines have been
recently serviced. If this started after servicing the fuel filters an air
leak is very probable.

Injector tips are another possibility. BTW, injector timing is critical to
a DDA running well. You should probably invest the few dollars for a timing
gage. If you own the engines for a while you'll need one.

These engines are so simple and easy to work on that you would do well to
take a course on them. You could learn everything you'd ever need to know
in about a 40 hour course. That would include a complete teardown and
reassembly phase with a tune up. IMO, these are wonderful engines for the
DIY inclined owner.

Butch
"Larry" wrote in message
...
Gary wrote in
news:C1EBf.325410$2k.236563@pd7tw1no:

There are valves.
Check:
http://www.yachtsurvey.com/comparing_diesel_types.htm

Courtesy of Detroit diesel!



He's right....Sorry.

Detroit Diesel (DD671N) Questions
 

On Wed, 25 Jan 2006 14:49:55 +0000, Butch Davis wrote:

Wow!! This goes on and on.

As most everyone has said the most likely culprit is fuel system related.
In my experience air leaks are very rare except when the engines have been
recently serviced. If this started after servicing the fuel filters an air
leak is very probable.

Injector tips are another possibility. BTW, injector timing is critical to
a DDA running well. You should probably invest the few dollars for a timing
gage. If you own the engines for a while you'll need one.

These engines are so simple and easy to work on that you would do well to
take a course on them. You could learn everything you'd ever need to know
in about a 40 hour course. That would include a complete teardown and
reassembly phase with a tune up. IMO, these are wonderful engines for the
DIY inclined owner.

Butch

First good advise that has been given. The tools are availible here.
You will only need the one tool for the type injector that is in your engine.

http://buy1.snapon.com/catalog/tools...e=snapon-store

I own a set of four that I've had for about thirty-five years.
They won't go bad, and you will only need one.

alt.binaries.pictures.sports.ocean, has some info.