You can also loosen the IP bolts and use the adjuster screw on the side of the mount for small changes if that pump is the same as the one on the 603, allowing you to set it the way you want it without the tool.
Very likely it slipped one spline on the hub. You may be able to set it without removing it (if you are lucky and there is enough rotation left). You symptoms are exactly those of late timing -- white smoke and lousy performance cold at low rpm,, very very quiet running (no knock), and black smoke if you run it long enough to get it hot. Usually the smoke clears at higher rpm as the advance moves the timing up. Over advanced timing will give you poor running, terrible injector knock, and serious smoke at high rpm as the engine goes way over advanced. You can do quite a bit of damage this way! Old Volvo Diesels are known for scrubbing the top of the cylinder wall out due to being driven too hard cold, they have a large amount of mechanical advance cold to help with starting and running. Wind them up and they are probably 20 degrees fast, and the excessive combustion pressure from the fuel igniting well before TDC causes the rings to scrape the cylinder walls out. This is compounded by the usual failure mode of the cold start device being getting stuck in the cold position. Talk about smoke! Peter _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
