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      11-11-2012, 01:17 AM   #12
Dave W.
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Drives: Porsche 951, 1992 Eagle Talon
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Quote:
Originally Posted by ign335i View Post
Out of curiosity why would one need to replace these gaskets? What causes them, to leak?
The valvecover gasket also seals the small ports that lead to the PCV system, so if they start to leak from running higher boost on an old gasket you'll get oil in the intake.

Also, it's not a good idea to re-use old gaskets when removing/replacing a part.