Former VWDieselParts.com Forum

Recently purchased a 1982 Westy pop top with a 1.6L diesel engine. I tightened down some bolts, but it still has minor oil leakage. Pulled the injectors, but could not separate them into halves without a sturdy vise. Cleaned most of the carbon off the outsides, though. We drove it 450 miles to its new home. There was thick black smoke (sometimes white) from the exhaust the whole trip. Actually pulled over by a trooper for smoke. At trip's end, the back hatch was covered with oil and soot. Got about 25 mpg the first day and closer to 20 the 2nd day. Used 2 quarts oil. A swab run into the muffler brings out soot, no oil. Van accelerates from 0 to 50 in about 35 seconds. Any suggestions on how to proceed?

a compression test would be a good idea. Also Jack the forum owner sells rebuilt injectors so if you have one sticking a set of rebuilt injectors would be a very good investment. Leaking injectors can cause some nasty overfueling problems. Also someone may have turned the pump up for more power but if that were the case it probably would not smoke like that dueing normal cruising, only when accelerating hard.

Thank you, bscutt.

How's your air filter?

Thanks all. Quick update. Air filter was fine. Installing rebuilt fuel injectors helped noticeably, but still plenty of smoke. I ordered timing and compression test tools. Using VinceWaldon and Bentley as references I adjusted the timing belt. With cam shaft at TDC the fly wheel notch was almost outside the viewing window. Injection pump position was fine. Smoke improved dramatically. I still get some at start and when revving.
Compression psi values were a little low (380, 410, 420, 390), but not that far from each other.
Could a molybdenum sulfide oil additive help improve the compression?

If valve timing helped so much,.. have you checked your valve clearances lately?