89 200tq 10v noisy clutch bearing?

[Huw Powell]

> Steve,  your check for the vacuum leak was right on the money.  The dipstick
> did hardly alter the noise but  oil filler cap trick eliminates the noise
> every time.
> Now that I know what it is.  A  couple more questions.  How long can this go
> for before it becomes a problem?  What are the risks if any?

So it's a rear main seal leaking air into the crankcase under vacuum.

If the noise doesn't bother you, other than probably messing with your
mixture a bit when off boost... let's see.

it could leak oil the other way, I suppose, but the seal is less likely
to leak that way.  And you'll know if that happens.

To fix it you have to remove the transmission from the engine.  This is
not a minor job.

Swapping the seal is easy - once the big metal parts aren't in the way
any more...

http://www.humanspeakers.com/audi/rebuild5.htm

--
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/