Valve cover gasket woes

Mar 14, 2010 2 Replies

Okay, I'm just venting. It seems that every car I work on has a weepy valve cover gasket. I've fixed my own in the past using a product called Hylomar, but I ran out, and I haven't seen it in years(wish I could buy more....). Hylomar seemed to work pretty good, and chase the drips away for a long time.



Last June I did a timing belt job on my '97 NA. About 6 months in, the valve cover gasket was leaking. So I took it apart, cleaned it, and put in a new gasket; I followed the tightening and torque specs in the FSM to a T.


2 months later..it's weeping again. It was a 'Perma dry' Felpro gasket I installed. "Perma-dry" being a blatant lie in my opinion.

Do I need to just silicone the whole damn thing to keep it dry? I hate...Hate...oil leaks. Especially ones that can migrate down and hit the exhaust manifold and turn into a nasty smell in the passenger compartment....



At 105,000 it should not be a big deal to have a dry engine. The oil pan, front, rear, and cam seals do not leak. I replaced the CAS o-ring and that area is staying dry. The only thing left is the valve cover, and it seems to be the only trouble area...



Any tips?


Chris


(MassiveSnippage)

On my motorcycle road race engines, we used to always put a real thin coat of hi-temp silicone on both sides of the valve cover gasket before installing. Never leaked, but then the gaskets were never really in place for more than about 50 race miles or so....

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