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Topic Review (Newest First)
03-04-2012 09:47 AM
willys05tj Thanks everyone for the input. Just trying to get some direction. OllllllO
03-04-2012 09:43 AM
Timberwolf they both work fine if properly installed on a clean surface
the rubber ones usually leak because they were deformed from over-tightening
03-04-2012 08:48 AM
BeginnersLuck I have heard all the different ways to use a cork gasket. But I just make sure everything is good and clean and put the cork on dry. Only rtv I use is a few dabs on the valve cover to hold the gasket up while I put it back on. And I just use elbow torque....
03-04-2012 07:58 AM
willys05tj Y'all can see why I'm torn between rubber or cork. It seems like there is a 50/50 like of both. Installing the rubber gasket is straight forward.
What's the proper way to install cork? Do u use RTV on both sides? What's the proper torque on the bolts? This is going on an 4.0L.
03-04-2012 06:44 AM
BeginnersLuck I took the leaking rubber valve cover gasket off when I got my jeep and replaced it with cork. 5000 miles and still dry
03-04-2012 12:51 AM
Jaredaamy I put cork on my valve cover leaked next day and I put rubber on my oil pan hasn't leaked yet I'm sticking with rubber from now on
03-04-2012 12:09 AM
Tang87 I had my motor rebuilt about 5k ago. They used cork. It is already leaking
03-03-2012 11:32 PM
willys05tj Once again this has confused me more, because so many people recommend the fel-pro rubber n metal gasket over the cork and rtv. But thanks for the advise. The more the better.
03-03-2012 10:49 PM
Frenz form a gasket in a tube. its what the mechanics use.
03-03-2012 10:37 PM
brent in az My advice is cork, with proper RTV sealant. I read a lot about rubber leaks when used as valve covers or oil pans, etc. Rubber, in my experience, is the best materiel when dealing with couplings and sensors and low-pressure things. I could be 100% wrong---just my 2 cents. Cork and RTV have never done me wrong in valve covers, pans, differentials, etc.
03-03-2012 10:11 PM
willys05tj
Cork or Rubber

My buddy just got a 93 YJ and is needing to replace the valve cover gasket n is trying to decide which to go with. Cork or Rubber gasket? Any advise would be great.

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