PeachParts Mercedes-Benz Forum - View Single Post

dieseldiehard · #11 11-24-2004, 06:43 PM

Hi Fredmburgess,
The separator is a self contained External unit used only in later (84?) 240D's. It was a bit tricky making the mounting angles to hold it over the existing oil drain tube that was used wiht the big AF cannister, but it worked out nicely with ssoome aluminum stock. If anyone ever attemps to make the brackets like I did, I recommend using only nylock nuts to hold them together. Regular lockwashers and nuts come apart bcause there is so much vibration there even with a perfectly running engine.
I have since removed the air regulator in the turbo boost line (the red circle you see in the photo adjacent to the turbo) - it didn't add any overall acceleration after I swapped a new turbo into that engine. The first turbo was losing its bearings and the extra boost seemed to help it after it spooled up, giving a neck snapping when it shifted.
I turned the ALDA CCW about 2 turns. It was a newly rebuilt IP too, the rebuilder left off the snap-in cover over the ALDA adjustment.I think it was set too conservative by the rebuilder, they assured me that I would start belching black smoke if I went too far but I never got that far, just enough to lose a little fuel economy but it really gives the car a lot more acceleration (before the turbo builds pressure)
Copme to think of it, I just have accumulated 15K miles on the rebuilt engine in that picture I better plan on a valve lashing sometime soon.
BTW, someone cut away the stock AF housing to remove the separator, using a cold chisel or something. Not something I would want to do, if you can find the 240D separator its a nice self contained unit in a thick rubber molded case. Dealer price was $69 (w/ discount) but someone on the Shopforum was buying one at a wrecking yard for $15 - search for 240Dog or someone named Ed in San Jose (where's that old Email when I need it?)