240D smoking?? - Page 3 - PeachParts Mercedes-Benz Forum

btrapr · #1 03-15-2010, 08:49 PM

I got a 1982 Mercedes 240 awhile back! It was wedged into a garage full of stuff with old fuel and a dead battery! The seller said that he was told that the bottom end had been gone through...BUT no reverse and the foward gears were a little funny as he called it!

Well the price was right so I bought it!

Work done since then:
1) new fuel filters, air cleaner, new return fuel lines, adjusted the valves, and I ran some diesel purge, ALONG with a good washing...

2) The exhaust pipe was rotted off just below the engine coming off the exhaust manifold- so I had a piece made and pieced it in.

3) I pulled the transmission pan off and found the reverse band strut was in the pan, so I put it back in and adjusted it! GOT REVERSE but the ENGINE HAS CONSIDERABLE BLOWBY AND BLUISH/GREY SMOKE THAT SMELLS LIKE OIL! STILL AHS SOME OLD FUEL 1/4TANK IN THE TANK ALONG WITH ABOUT 5 GALLONS OF FRESH FUEL.

*when I did the purge the exhaust was still rotted so it sounded like a 4cyl tractor! During the pruge I smelled oil and noticed some smoke...Starts great and idles fairly steady...NOW it has a steady stream when you try to put a load on it and a slight steam while idling. I checked the vapor/oil seperator and found it clear so no pressure issues there!

A friend is a Diesel truck mechanic and he offered to loan me a crank case pressure checker along with his compression tester...He said that the crank pressure in inches can be checked to see if its too much...along with a compression check to narrow down the cause...

ANY ideas here?

injection pump, injectors?

I thought about pulling the injectors and letting the cylinder soak in some Marvel oil to see if the rings are gummed up?

Can the valve stem seals be replaced with the head on the motor? IF so how is it done- I will be filling the cylinders with air thru the GP hole...