Yes, I adjusted the IP timing using the drip method. As far as I know, there are 3 or 4 ways to do this job, depending on the IP you have. I first tried to use the method where you looking in the top of the IP pipe and look for fuel to start to well up (sometimes called the Baylor method) but couldn't get it to work.

The drip method is outlined in the haynes manual, or the mercedes manuals (or CD). Do a search on drip tube injection pump timing and you should find plenty of info. The other 2 methods (1 - using a lock pin on later 300D model, 2 - the $250 electronic box method again on later model 300D) can be found in the archieves of www.mbz.org.

Good luck

Joe