I set the camshaft timing to spec on my 300e and found it made a big difference in acceleration. I aquired a second E in January and found it is much zippier and determined there was something not-right with the sluggish one.

I read up on the procedure in the CD and found that the cam was several degrees off. Flipping the cam sprocket alters the timing by 3 degrees. I recently replaced the timing chain and was careful enough to not skip any teeth. The problem was that the new chain had less shrinkage and altered the cam timing. It was a fairly straight-forward job and was not much more work than replacing the U gasket.

I am putting together a DIY for replacing the U gasket and I would highly recommend that if you have the top timing cover removed to check the cam timing. It is done by setting the engine to TDC at the forward diagnostic crankshaft position sensor and checking the cam to see if the TDC indicator aligns with a casting mark.

Robert

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89 300te 222,222
92 300e 190,000