W124 OM602 gas problem

STD Tuning Engine W124 OM602 gas problem

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Keino

GT2256V

151

11-22-2014, 10:43 AM #1

Hi!
Having a problem with om602 stock engine. W124 -91

When the engine is cold it runs as it should, when temp is @ 90c (warm engine) it starts acting a bit "funny"

When giving gas with the pedal it does not respond until halfway down, and just before you get the response there is this nasty knocking sound, engine is powerless and does not revv up, and if giving some more gas it is like the gear kicks in and it starts accelerating again.
Happens if i try to keep the engine around 2000rpm.
Also if giving very little gas it jerks back and forth until you floor the pedal.

I suspect there is something wrong with the fuelinjection.

What do you guys think? Ideas?

And! It smells like shit everytime the car has been running and I get out of it. Smells like burnt plastic or something like that. Huh

Keino

11-22-2014, 10:43 AM #1

barrote

Superturbo

1,627

11-22-2014, 02:12 PM #2

(11-22-2014, 10:43 AM)Keino Hi!
Having a problem with om602 stock engine. W124 -91

When the engine is cold it runs as it should, when temp is @ 90c (warm engine) it starts acting a bit "funny"

When giving gas with the pedal it does not respond until halfway down, and just before you get the response there is this nasty knocking sound, engine is powerless and does not revv up, and if giving some more gas it is like the gear kicks in and it starts accelerating again.
Happens if i try to keep the engine around 2000rpm.
Also if giving very little gas it jerks back and forth until you floor the pedal.

I suspect there is something wrong with the fuelinjection.

What do you guys think? Ideas?

And! It smells like shit everytime the car has been running and I get out of it. Smells like burnt plastic or something like that.

IP governor masses giving up, or timing advance sprocket , damaged.
does the engine smoke white when hot?

FD,
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barrote

11-22-2014, 02:12 PM #2

(11-22-2014, 10:43 AM)Keino Hi!
Having a problem with om602 stock engine. W124 -91

When the engine is cold it runs as it should, when temp is @ 90c (warm engine) it starts acting a bit "funny"

When giving gas with the pedal it does not respond until halfway down, and just before you get the response there is this nasty knocking sound, engine is powerless and does not revv up, and if giving some more gas it is like the gear kicks in and it starts accelerating again.
Happens if i try to keep the engine around 2000rpm.
Also if giving very little gas it jerks back and forth until you floor the pedal.

I suspect there is something wrong with the fuelinjection.

What do you guys think? Ideas?

And! It smells like shit everytime the car has been running and I get out of it. Smells like burnt plastic or something like that.

IP governor masses giving up, or timing advance sprocket , damaged.
does the engine smoke white when hot?

FD,
Powered by tractor fuel

Keino

GT2256V

151

11-22-2014, 02:58 PM #3

(11-22-2014, 02:12 PM)barrote
(11-22-2014, 10:43 AM)Keino Hi!
Having a problem with om602 stock engine. W124 -91

When the engine is cold it runs as it should, when temp is @ 90c (warm engine) it starts acting a bit "funny"

When giving gas with the pedal it does not respond until halfway down, and just before you get the response there is this nasty knocking sound, engine is powerless and does not revv up, and if giving some more gas it is like the gear kicks in and it starts accelerating again.
Happens if i try to keep the engine around 2000rpm.
Also if giving very little gas it jerks back and forth until you floor the pedal.

I suspect there is something wrong with the fuelinjection.

What do you guys think? Ideas?

And! It smells like shit everytime the car has been running and I get out of it. Smells like burnt plastic or something like that.
IP governor masses giving up, or timing advance sprocket , damaged.
does the engine smoke white when hot?

No no smoke at all Undecided

Keino

11-22-2014, 02:58 PM #3

(11-22-2014, 02:12 PM)barrote
(11-22-2014, 10:43 AM)Keino Hi!
Having a problem with om602 stock engine. W124 -91

When the engine is cold it runs as it should, when temp is @ 90c (warm engine) it starts acting a bit "funny"

When giving gas with the pedal it does not respond until halfway down, and just before you get the response there is this nasty knocking sound, engine is powerless and does not revv up, and if giving some more gas it is like the gear kicks in and it starts accelerating again.
Happens if i try to keep the engine around 2000rpm.
Also if giving very little gas it jerks back and forth until you floor the pedal.

I suspect there is something wrong with the fuelinjection.

What do you guys think? Ideas?

And! It smells like shit everytime the car has been running and I get out of it. Smells like burnt plastic or something like that.
IP governor masses giving up, or timing advance sprocket , damaged.
does the engine smoke white when hot?

No no smoke at all Undecided

Petar

7.5mm M pump

459

11-22-2014, 04:45 PM #4

Does it have EGR ??? If so try blocking it.

Petar

11-22-2014, 04:45 PM #4

Does it have EGR ??? If so try blocking it.

Keino

GT2256V

151

11-22-2014, 04:53 PM #5

(11-22-2014, 04:45 PM)Petar Does it have EGR ??? If so try blocking it.

Yes it has egr.
You think that would help?

Keino

11-22-2014, 04:53 PM #5

(11-22-2014, 04:45 PM)Petar Does it have EGR ??? If so try blocking it.

Yes it has egr.
You think that would help?

Petar

7.5mm M pump

459

11-22-2014, 05:06 PM #6

Maybe. You have nothing to lose by trying. Although i think it would blow thick black smoke if it was stuck open.

Petar

11-22-2014, 05:06 PM #6

Maybe. You have nothing to lose by trying. Although i think it would blow thick black smoke if it was stuck open.

Keino

GT2256V

151

11-22-2014, 05:09 PM #7

(11-22-2014, 05:06 PM)Petar Maybe. You have nothing to lose by trying. Although i think it would blow thick black smoke if it was stuck open.

Engine blows some smoke if revving it on idle. Pump has not been touched as far as i know.

Keino

11-22-2014, 05:09 PM #7

(11-22-2014, 05:06 PM)Petar Maybe. You have nothing to lose by trying. Although i think it would blow thick black smoke if it was stuck open.

Engine blows some smoke if revving it on idle. Pump has not been touched as far as i know.

barrote

Superturbo

1,627

11-22-2014, 05:12 PM #8

well, check EGR system. block it. it worth F nothing.
smoke idling, hum how much? and when hot?

FD,
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barrote

11-22-2014, 05:12 PM #8

well, check EGR system. block it. it worth F nothing.
smoke idling, hum how much? and when hot?

FD,
Powered by tractor fuel

Keino

GT2256V

151

11-22-2014, 05:29 PM #9

(11-22-2014, 05:12 PM)barrote well, check EGR system. block it. it worth F nothing.
smoke idling, hum how much? and when hot?

I'll check smoke tomorrow give u a a better idea of it.
What is the best way of blocking the EGR?

Keino

11-22-2014, 05:29 PM #9

(11-22-2014, 05:12 PM)barrote well, check EGR system. block it. it worth F nothing.
smoke idling, hum how much? and when hot?

I'll check smoke tomorrow give u a a better idea of it.
What is the best way of blocking the EGR?

barrote

Superturbo

1,627

11-22-2014, 05:44 PM #10

take a hammer find a 50 cent euro coin, smash the coin til u can thin it enough to close the port at the exaust manifold.
Big Grin

FD,
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barrote

11-22-2014, 05:44 PM #10

take a hammer find a 50 cent euro coin, smash the coin til u can thin it enough to close the port at the exaust manifold.
Big Grin

FD,
Powered by tractor fuel

Petar

7.5mm M pump

459

11-22-2014, 05:49 PM #11

If it is not EGR related you could try swapping your injection pump with a known good used one.See if the behavior changes.

Hopefully it is not an internal engine problem...

This post was last modified: 11-22-2014, 05:50 PM by Petar.

Petar

11-22-2014, 05:49 PM #11

If it is not EGR related you could try swapping your injection pump with a known good used one.See if the behavior changes.

Hopefully it is not an internal engine problem...

Keino

GT2256V

151

11-23-2014, 07:33 AM #12

(11-22-2014, 05:49 PM)Petar If it is not EGR related you could try swapping your injection pump with a known good used one.See if the behavior changes.

Hopefully it is not an internal engine problem...

I hope the IP is ok... And ofcourse I dont have another pump to swap. Otherwise that is a good idea.
Maybe I'll have to get one

Keino

11-23-2014, 07:33 AM #12

(11-22-2014, 05:49 PM)Petar If it is not EGR related you could try swapping your injection pump with a known good used one.See if the behavior changes.

Hopefully it is not an internal engine problem...

I hope the IP is ok... And ofcourse I dont have another pump to swap. Otherwise that is a good idea.
Maybe I'll have to get one

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