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cam chain tensioner (archive)
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Posted by Rob Levinson * UUC Motorwerks on May 19, 2001 at 23:08:13:

In Reply to: More about the mystery S-38 part posted by Matt Evans on May 16, 2001 at 21:32:54:

It is the cam chain tensioner and can be replaced without removing the engine.

Find yourself a technician who knows M5s, this is a common maintenance item.

What state do you live in? Perhaps I can recommend someone.

- Rob Levinson
'94 M5 3.8 Touring
ex-'88 M5 3.88 Turbo


Finally the got the car up on the lift today. The leak indeed seems to becoming from what was descibed by "Frank" (l.obrien2@verizon.net) as the hyrdaulic tensioner. It was not attached to any cooling pipes at all, instead it was a little neck and an attached disc that came off of the timing case cover. My mechanic didn't know for sure so hes asking in the morning. I told him about what theories you board members came up with and he seems to think the hydro chain tensioner is the most likely.

Anyone fixed this failure before ? What was the procedure ? The damn thing is so far recessed that its practically impossible to see. I don't want to imagine paying someone else to do the labour - they'll probably have to pull the entire motor just to get at it :)




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