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+--- Thread: W124 OM602 gas problem (/showthread.php?tid=6012)
W124 OM602 gas problem - Keino - 11-22-2014
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.
RE: W124 OM602 gas problem - barrote - 11-22-2014
(11-22-2014, 10:43 AM)Keino Hi!IP governor masses giving up, or timing advance sprocket , damaged.
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.
does the engine smoke white when hot?
RE: W124 OM602 gas problem - Keino - 11-22-2014
(11-22-2014, 02:12 PM)barrote(11-22-2014, 10:43 AM)Keino Hi!IP governor masses giving up, or timing advance sprocket , damaged.
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.
does the engine smoke white when hot?
No no smoke at all
RE: W124 OM602 gas problem - Petar - 11-22-2014
Does it have EGR ??? If so try blocking it.
RE: W124 OM602 gas problem - Keino - 11-22-2014
(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?
RE: W124 OM602 gas problem - Petar - 11-22-2014
Maybe. You have nothing to lose by trying. Although i think it would blow thick black smoke if it was stuck open.
RE: W124 OM602 gas problem - Keino - 11-22-2014
(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.
RE: W124 OM602 gas problem - barrote - 11-22-2014
well, check EGR system. block it. it worth F nothing.
smoke idling, hum how much? and when hot?
RE: W124 OM602 gas problem - Keino - 11-22-2014
(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?
RE: W124 OM602 gas problem - barrote - 11-22-2014
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.
RE: W124 OM602 gas problem - Petar - 11-22-2014
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...
RE: W124 OM602 gas problem - Keino - 11-23-2014
(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