1984 500SEL 1984 380SE
Uh oh. Ya, the 4 upper guides are all new within the last few months, as is the tensioner. Yes, the tensioner was fully installed. Yes, I cranked the engine two full revolutions, and just did another two full revolutions to be sure. No change. I will stick the camera down the chain path tomorrow and check the upper guides again. Is there an easy way to inspect the lower guides? Can I see them from the bottom of the engine if I drop the oil pan?If that photo is supposed to show the cam off one tooth, it doesn't. It looks like exactly half a tooth. Are you sure all the guides are in good shape? Was the tensioner engaged? Have you cranked the engine over at least two revolutions?