This article is from the VW Technical FAQ, by with numerous contributions by Jan Vandenbrande others.
A: [From Andy]:
On most A1 & A2 cars you usually have to change the can cover gasker
anywhere from 1 to 2 times per year because they leak.
This is because the metal gets hot and then cold and twists.
This allows the oil to seep through and the gaskets start to leak.
I was told that the aluminum corrado covers fit on the 8V golfs/jettas.
They do not twist under temperature changes, hence fever gasket changes
are needed. I did not try to fit one of those on my engine yet, but
will soon. So if you are getting tired of changing the $6 gasket, then here
might be an alternative solution for you.
[From Jan]: A good idea, however keep in mind that the Corrados also
use a one piece synthetic gasket that's not that cheap! I think
they fit on other 8V engines.
 
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