PeachParts Mercedes-Benz Forum - View Single Post - Seeking the several causes for white/gray smoke 83 240d

whunter · #2 12-27-2011, 01:32 AM

Quote:

Originally Posted by fochs

Thanks, I am using straight diesel with power service additive. The car was not smoking when I purchased it, but the timing was off some. I think the PO got it running smooth just for me. I now know the power was low at the time of purchase, but hey. The compression is~350,350,375,350. The car operates at around 190 degrees F. The car starts up almost instantly after 1 glow cycle at less than 40 degrees F.
-I can do a video in a couple days.-
-Can an EGR cause this? It is something I have not checked.

If the excess smoke continues after the engine has reached operating temperature, taking into account everything you have done.

My best guess: The ADA (non turbo version of the ALDA) = altitude compensation valve is set too rich.
Be sure the ADA atmospheric vent port is NOT connected to vacuum...
You should only make adjustments in 1/4 turn increments.
* Turning the adjusting screw clock wise decreases fuel.
* Turning the adjusting screw counter clock wise increases fuel.

Your operating temperature should be around 176° F = 80° C.

If the EGR is still connected, put a BB in the vacuum line, and consider installing a galvanized plate between two gaskets = from the EGR to Intake manifold = instant blank off.

Read this thread
The higher temperature and smoke where cured by screwing in the ADA.
http://www.peachparts.com/shopforum/diesel-discussion/300512-overfueling-240d.html

Feel free to call me Tuesday.

.