STD Maintenance General engine 617 ''dieseling"?

engine 617 ''dieseling"?

engine 617 ''dieseling"?

 
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300GD
K26-2

26
09-24-2010, 05:33 PM #1
Hi,
Was looking for any info about but no luck.....
Im new to this diesel engine (617.931 non turbo) i have it in my 300GD after i turn key off in ignition engine stops but after ...like 5 seconds .
Is this normal for those engines ? is that why they call dieseling in gas cars becouse older diesels dont stop right away? Just wanted to make sure if this is normal .Thanks for any input
J
300GD
09-24-2010, 05:33 PM #1

Hi,
Was looking for any info about but no luck.....
Im new to this diesel engine (617.931 non turbo) i have it in my 300GD after i turn key off in ignition engine stops but after ...like 5 seconds .
Is this normal for those engines ? is that why they call dieseling in gas cars becouse older diesels dont stop right away? Just wanted to make sure if this is normal .Thanks for any input
J

ForcedInduction
Banned

3,628
09-24-2010, 05:43 PM #2
You have a vacuum leak. The engine should shut down immediately.
ForcedInduction
09-24-2010, 05:43 PM #2

You have a vacuum leak. The engine should shut down immediately.

ConnClark
GT2256V

109
09-24-2010, 06:06 PM #3
Yep its a vacuum leak. The ignition switch uses a vacuum to pull the stop lever on the injection pump.
ConnClark
09-24-2010, 06:06 PM #3

Yep its a vacuum leak. The ignition switch uses a vacuum to pull the stop lever on the injection pump.

larsalan
Superturbo

1,272
09-24-2010, 08:04 PM #4
not to jack your thread but...

I am in the same boat. As I noted in a previous thread I have a similar problem with my new 617.

The engine used to stop if I had the driver door locked.
Now I have noticed It will occasionally stop but, the standard is for the motor to continue to run until I press the manual shut off.

My related question is if the occasional shutoff by key is a sign that that shutoff valve may still be functional.
I mean, can it sometimes work and sometimes not? Or if it's dead it's dead.


larsalan
09-24-2010, 08:04 PM #4

not to jack your thread but...

I am in the same boat. As I noted in a previous thread I have a similar problem with my new 617.

The engine used to stop if I had the driver door locked.
Now I have noticed It will occasionally stop but, the standard is for the motor to continue to run until I press the manual shut off.

My related question is if the occasional shutoff by key is a sign that that shutoff valve may still be functional.
I mean, can it sometimes work and sometimes not? Or if it's dead it's dead.


willbhere4u
Six in a row make her go!

2,507
09-24-2010, 09:46 PM #5
It wont cause any damage like on a gas engine!

1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
willbhere4u
09-24-2010, 09:46 PM #5

It wont cause any damage like on a gas engine!


1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running

300GD
K26-2

26
09-24-2010, 10:17 PM #6
thank you guys.will look for vacuum leaks .
Is there a way to check if shutoff valve needs to be replaced or still problem is with leaks elswhere...?
300GD
09-24-2010, 10:17 PM #6

thank you guys.will look for vacuum leaks .
Is there a way to check if shutoff valve needs to be replaced or still problem is with leaks elswhere...?

ForcedInduction
Banned

3,628
09-25-2010, 06:37 AM #7
(09-24-2010, 10:17 PM)300GD Is there a way to check if shutoff valve needs to be replaced

Pump it with a handheld vacuum pump or suck on it.
ForcedInduction
09-25-2010, 06:37 AM #7

(09-24-2010, 10:17 PM)300GD Is there a way to check if shutoff valve needs to be replaced

Pump it with a handheld vacuum pump or suck on it.

Rudolf_Diesel
Ask me if I care...

579
09-25-2010, 08:48 AM #8
I would use a handheld vacuum pump, if you use your mouth you will have a nasty taste in your mouth when your doneBig Grin ask me how I know...

1982 300SD: 304,xxx Super M-pump with 7.5mm elements, 265 Nozzles, GT35 water cooled turbo, M90 Supercharger, A/W Intercooler, Serpentine drive belt, 3" SS exhaust with Magnaflow muffler, 240 breather, AEM dry Filter, Manual Boost Control, EGT / Boost / EMP gauges....Moved on to other projects

1995 F-350 7.3L PSD: 230,xxx 6.0 IC, DIY Stage 1 Injectors, 17* hpop, Tony Wildman Chip, John Wood Trans, 6.4L TC, 3" down pipe, 4" straight exhaust, 310 HP on wheel dyno - 8500# dually: 0-60 in 6.98

Suzuki Samurai: VW 1.9L TD, Trackick doubler transfer case (made by me) 5.8:1 transfer case gears, YJ springs front and rear with rear missing links, wheel base extended 14", diffs welded, some day a VNT.
Rudolf_Diesel
09-25-2010, 08:48 AM #8

I would use a handheld vacuum pump, if you use your mouth you will have a nasty taste in your mouth when your doneBig Grin ask me how I know...


1982 300SD: 304,xxx Super M-pump with 7.5mm elements, 265 Nozzles, GT35 water cooled turbo, M90 Supercharger, A/W Intercooler, Serpentine drive belt, 3" SS exhaust with Magnaflow muffler, 240 breather, AEM dry Filter, Manual Boost Control, EGT / Boost / EMP gauges....Moved on to other projects

1995 F-350 7.3L PSD: 230,xxx 6.0 IC, DIY Stage 1 Injectors, 17* hpop, Tony Wildman Chip, John Wood Trans, 6.4L TC, 3" down pipe, 4" straight exhaust, 310 HP on wheel dyno - 8500# dually: 0-60 in 6.98

Suzuki Samurai: VW 1.9L TD, Trackick doubler transfer case (made by me) 5.8:1 transfer case gears, YJ springs front and rear with rear missing links, wheel base extended 14", diffs welded, some day a VNT.

300GD
K26-2

26
09-25-2010, 12:42 PM #9
thank you again. buying hand held vacuum pump.....hoses look ok
300GD
09-25-2010, 12:42 PM #9

thank you again. buying hand held vacuum pump.....hoses look ok

300GD
K26-2

26
09-30-2010, 06:51 AM #10
Its my shut off valve .I conected vacum hose directlly form booster bypasing ignition and did not shut it off right away so its shut off valve foulty. How hard is it to replace this valve .My engine is one of latest from 617 non turbo series and i see inj pump is bit diferent for early models.
300GD
09-30-2010, 06:51 AM #10

Its my shut off valve .I conected vacum hose directlly form booster bypasing ignition and did not shut it off right away so its shut off valve foulty. How hard is it to replace this valve .My engine is one of latest from 617 non turbo series and i see inj pump is bit diferent for early models.

ForcedInduction
Banned

3,628
09-30-2010, 06:57 AM #11
If it has the m-pump (actuator on top), its about as easy as easy can get.
ForcedInduction
09-30-2010, 06:57 AM #11

If it has the m-pump (actuator on top), its about as easy as easy can get.

larsalan
Superturbo

1,272
09-30-2010, 07:44 AM #12
here is how to replace it.

http://dieselgiant.com/repairyourshutoffvalve.htm

once you get it out you could see if it will work under vacuum. That bit costs like $150. Maybe you could seal it up with new gaskets and save $ ???
larsalan
09-30-2010, 07:44 AM #12

here is how to replace it.

http://dieselgiant.com/repairyourshutoffvalve.htm

once you get it out you could see if it will work under vacuum. That bit costs like $150. Maybe you could seal it up with new gaskets and save $ ???

300GD
K26-2

26
09-30-2010, 07:58 AM #13
Larsalan ,thanks but my injection pump is different then on this" how to".
Force, my vacuum hose goes to plastic housing directly on top of inj pump .Is this M pump you were saying is very easy to change valve?
Im not sure if have M pump .my vacuum hose goes vertically to plastic housing not on side like M pump has.
Another question what coolant type is recomended for 617 engines and what %(50/50?)
appreciate feedback
J
This post was last modified: 09-30-2010, 08:39 AM by 300GD.
300GD
09-30-2010, 07:58 AM #13

Larsalan ,thanks but my injection pump is different then on this" how to".
Force, my vacuum hose goes to plastic housing directly on top of inj pump .Is this M pump you were saying is very easy to change valve?


Im not sure if have M pump .my vacuum hose goes vertically to plastic housing not on side like M pump has.
Another question what coolant type is recomended for 617 engines and what %(50/50?)
appreciate feedback
J

 
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