Quote:
Originally Posted by rgnprof
I think I got it! Amazing! I have enclosed a photo showing how much I moved the pump toward the engine - advancing the timing. Some black smoke initially on start-up, but it went away pretty quickly. Took it for a drive and it clearly runs better - NO PINGING/KNOCKING!
Would new nozzles cause the timing to change? That's the only thing I've really changed as far as the fuel system goes... I couldn't move the pump anymore AWAY from the engine - don't know what that means, if anything...
According to the picture - blue mark on right (pump side), and red on left (engine side), is this a big adjustment?
ryan
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When you have it installed perfectly, the fuel will shut all the way off at 23* before top dead center. Anything else is wishful thinking and hoping and that never solves a Mercedes problem. Not that I've discovered. Also, when you remove that pump, put in a new gasket so you don't have to re-do the pump removal to stop the oil leak that is going to occur since you have already moved the pump unless the gasket was changed when the last person installed the pump incorrectly. Also, insure that the marks on the pump are in correct alignment with the ring on the pump. And if you don't know what I'm talking about, have someone else more experienced do the job for you or be on hand to guide you properly.
BenzDiesel