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Valve cover gasket

In message <199701131640.QAA03583@cooch.asa.co.uk> Sam Massey writes:

> Last week I removed the valve cover gasket and flushed the gauze with a
> corrosive cleaner to flush it out (as recommended by a number of local
> mechanics), but after replacing the cover and fitting a new gasket
> (pre-oiled) and tightened the bolts in a diagonal sequence - I now have a
> slight oil leak onto the exhaust manifold.

Is it possible that one of the studs was either loose to start with or was 
loosened when you took the cover off?  I've found that the studs need to be 
torqued solidly (not _TOO_ solidly - it's aluminium) into the head before the 
cover is replaced. 

 Phil Payne
 Committee Member, UK Audi [ur-]quattro Owners Club