|
|
|
#16
|
||||
|
||||
Quote:
If your injectors are old, it's time to consider a nozzle replacement or rebuild. Checking compression would be a good idea, low compression will lead to poor starting and/or running when the engine is cold.
__________________
Current stable: 1995 E320 149K (Nancy) 1983 500SL 120K (SLoL) Black Sheep: 1985 524TD 167K (TotalDumpster™) Gone but not forgotten: 1986 300SDL (RIP) 1991 350SD 1991 560SEL 1990 560SEL 1986 500SEL Euro (Rusted to nothing at 47K!) |
#17
|
|||
|
|||
Sorry guys
I was following on from the 2 videos that Risoepeko uploaded at the beginning of this post as the symptoms are exactly what he posted The videos show exactly my issues Mine is a 1993 OM602 Non turbo I have just had the injectors refurbished new nozzles I dont know anything about what pressure pop has been set on them. As that I guess is why I paid the man that knows more than me, cleaned all chambers before replacing new injector seals I also took the opportunity to replace all 5 Glowplugs. I haven’t done a compression test as yet Was hoping someone would know what roscoepeko’s solution was |
#18
|
||||
|
||||
The OP's last login was October 2016. I doubt he'll be posting his resolution anytime soon.
__________________
Current stable: 1995 E320 149K (Nancy) 1983 500SL 120K (SLoL) Black Sheep: 1985 524TD 167K (TotalDumpster™) Gone but not forgotten: 1986 300SDL (RIP) 1991 350SD 1991 560SEL 1990 560SEL 1986 500SEL Euro (Rusted to nothing at 47K!) |
#19
|
|||
|
|||
Compression Test this was taken cold
*1 380 *2 380 *3 380 *4 385 *5 420 so looking at pump timing now.... |
#20
|
|||
|
|||
Cold compression test with these numbers? It cannot be right. Even a hot engine may or may not have these numbers. I normally get less then 250 or much less with stone cold engine. Check whether there is any gas escaping from the vent hole at the left back of the valve cover when rough idle HAPPENS. If there is then I suspect the compression of cylinder(s) of your engine is shot.
__________________
Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed. W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html 1 X 2006 CDI 1 x 87 300SDL 1 x 87 300D 1 x 87 300TDT wagon 1 x 83 300D 1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry. |
#21
|
||||
|
||||
Quote:
The little hole in the back of the valve cover is only a breather for the original PCV puck that's riveted in the valve cover. When the diaphragm goes (and they do), they'll leak smoke/vapor if there is anything above a 0PSI gradient between the inside of the engine and the atmosphere. For reference, the inside of the engine will always be at a higher pressure than atmospheric....even on a brand new engine.
__________________
Current stable: 1995 E320 149K (Nancy) 1983 500SL 120K (SLoL) Black Sheep: 1985 524TD 167K (TotalDumpster™) Gone but not forgotten: 1986 300SDL (RIP) 1991 350SD 1991 560SEL 1990 560SEL 1986 500SEL Euro (Rusted to nothing at 47K!) |
#22
|
|||
|
|||
Quote:
__________________
Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed. W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html 1 X 2006 CDI 1 x 87 300SDL 1 x 87 300D 1 x 87 300TDT wagon 1 x 83 300D 1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry. |
#23
|
||||
|
||||
Do your own research. Spouting nonsense and getting upset when someone calls you out on it doesn't help this forum or the OP troubleshoot his problem.
__________________
Current stable: 1995 E320 149K (Nancy) 1983 500SL 120K (SLoL) Black Sheep: 1985 524TD 167K (TotalDumpster™) Gone but not forgotten: 1986 300SDL (RIP) 1991 350SD 1991 560SEL 1990 560SEL 1986 500SEL Euro (Rusted to nothing at 47K!) |
#24
|
|||
|
|||
Quote:
Normal pressure for OM603: 26-32 bar 377-464 psi. This is the spec for HOT engine. My experience with cold engine is that you would not get numbers like 380, not even close. I rest my case as I have bigger fish to fry. BTW, the vent hole is very important and don't ever plug it. The pressure inside the valve cover is LESS than atmospheric for a good engine with good turbo. There should be no smoke coming out at the vent hole.
__________________
Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed. W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html 1 X 2006 CDI 1 x 87 300SDL 1 x 87 300D 1 x 87 300TDT wagon 1 x 83 300D 1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry. |
#25
|
|||
|
|||
The engine being discussed is NA engine.
__________________
92 e300d2.5t 01 e320 05 cdi 85 chev c10 |
#26
|
||||
|
||||
Your reactions and replies seem to back up my claims.
Quote:
Quote:
Again, do your research.
__________________
Current stable: 1995 E320 149K (Nancy) 1983 500SL 120K (SLoL) Black Sheep: 1985 524TD 167K (TotalDumpster™) Gone but not forgotten: 1986 300SDL (RIP) 1991 350SD 1991 560SEL 1990 560SEL 1986 500SEL Euro (Rusted to nothing at 47K!) |
#27
|
|||
|
|||
Guys Guys.......
these compression readings are indeed correct @ Cold, as I had sent my injectors back to get checked after they were refurbed with new nozzles etc. i actually did the comporession test twice these were the readings after allowing 3/4 turns Injectors have come back and been told nothing wrong surpirse surpirse, |
#28
|
||||
|
||||
Your compression numbers are fine. Were the injectors just pop tested, or was the pattern checked as well? It would be worth your time to check chain stretch and cam/IP vs. crank timing. If the chain has stretched, your cam and IP may be slightly retarded and can certainly lead to late injection and smoke/stumbling at idle. It's worth pulling the valve cover and checking anyway, some of the late 602's have been documented to have a softer than usual camshaft sprocket that can wear to pointed teeth (affecting timing).
__________________
Current stable: 1995 E320 149K (Nancy) 1983 500SL 120K (SLoL) Black Sheep: 1985 524TD 167K (TotalDumpster™) Gone but not forgotten: 1986 300SDL (RIP) 1991 350SD 1991 560SEL 1990 560SEL 1986 500SEL Euro (Rusted to nothing at 47K!) |
#29
|
|||
|
|||
Hi Thanks again for your reply
great ok ill be checking the chain for stretch and may take a look at adjusting pump and as you say may be worth popping the rocker cover off and take a look at sprocket will report back thanks |
#30
|
|||
|
|||
Did u get to the bottom of the problem?
|
Bookmarks |
|
|