Before I drop my M117 into the 420, I'm going to reseal the lower intake with all new rubber... hell it's out.

Anyway, obviously I'm going to do the upper guides and tensioner (with rail) while I have it out but how much more work is it to do the chain?

Isn't there some sort of small cheap plastic stuff on the cam oiler that I should replace? Do I need new cam sprockets?

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]