1988 YJ valve cover gasket - Jeep Wrangler Forum
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Old 05-16-2013, 12:05 PM   #1
Join Date: Feb 2013
Location: North Colorado
Posts: 15
1988 YJ valve cover gasket

My 88 YJ has an aluminum valve cover that has 7 bolt holes. On the passenger side of the cover it's stright and on the drivers side it's wavy. I can't seem to find a gasket to solve this leaking problem. On the entire head it's wavy all around with no stright sides like the cover has. She leaks oil like crazy from the cover to head seal because of the gasket. The cover and head have been checked for cracks and are all good. Looking for ideas to get these two to marry up and not leak.

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Old 05-16-2013, 02:08 PM   #2

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Location: North Las Vegas
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2.5, 4.0 or 4.2??? Take a picture with you to the parts house and show the guy at the counter.

89 2.5 TBI, 4" RC lift, 1" Booms, SYE, Adams Driveshafts front and rear, Ford 8.8 with 4:88s, BFG 33X12.50X15, and a ton of other stuff.

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Old 05-16-2013, 05:06 PM   #3
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Join Date: Oct 2012
Location: Maryland
Posts: 71
My 88 has the 4.2. I had a hard time finding the gasket in catalogs. Had to go to the auto parts store. Bought the more expensive rubber one. No more leaks. (From the valve cover at least)
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Old 05-16-2013, 06:28 PM   #4
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Join Date: Jan 2013
Location: rural N.E. Kansas
Posts: 184
I had to replace mine today because it was leaking.I used RT SEALANT on the bottom and top of new gasket...russ
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