Re: Valve Oil Seal?

[quk@isham-research.demon.co.uk (Phil Payne)]

In message <19990524183550.49510.qmail@hotmail.com> "Nick Yosemite" writes:

> I had my heads (1993 V6 2.8L 12V) hot tanked to clean them up before putting
> them back together. It was suggested to me to check if there are valve oil
> seals like on other manufacture head designs that may have been damaged or
> lost during cleaning.
>
> I didn't check before sending them out (didn't know better) and looking at
> them afterwards the only thing I see is a small O-ring spring on the top of
> valve guide. If this is the case, I assume that the cleaning solvents ate
> the rubber.

No, you can always see the O-springs.  The valve stem oil seals _will_
have been damaged, though, and will need to be replaced.  In general,
they're so cheap compared with everything else that I never allow an oil
seal to which I gain access to survive.  There's a small mound of them
in the back left of the workshop where I keep missing the bin.

--
 Phil Payne
 UK Audi quattro Owners Club