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Go Back > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > To Gasket Or Not To Gasket?

Ruffstuff 10 year saleBDS 4-1/2" Suspension Lift Kit - Jeep Wrangler YJRough Country Lift Kits and Parts!

Unread 07-31-2002, 06:04 PM   #1
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Join Date: Jul 2002
Location: hustonville, Ky.
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To Gasket Or Not To Gasket?

Ok! I just got my alum. valve cover from Tellico. Haven't had a chance to put it on yet, BUT..... I was talking to a freind today who just happens to know one of the engineers who worked on the design of the good old 258. Ya know the one with the plastic valve cover that leaks oil. My freind was told by this guy that I should use a "RUBBER GASKET" when replacing the valve cover "plastic or metal" and that would solve my problem. Any thought's or idea's?

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Unread 07-31-2002, 06:53 PM   #2
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I think he's saying to go with rubber versus standard cork gaskets. I know you can get rubber seals for the oil pan, but I didn't realize they made them for the valve cover. I have always used Felpro cork gaskets, and I wind up replacing them about once every 50,000 miles--not too bad considering they're only about $8-9 each and take all of about 15 minutes to change.

It's also a good idea to re-torque the bolts after about a week or so.
Currently an '86 CJ-7 and a '77 CJ-7 Golden Eagle---#4 and 5 following a '01 Sahara, '90 Sahara, and '85 CJ-7....
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Unread 07-31-2002, 07:33 PM   #3
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2005 LJ Wrangler 
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On the 4.0L there isn't a gasket available, as far as I know, but even if there was I probably would just use gasket sealer and you are better off doing the same for your 258.
2005 LJ Impact Orange 4.0L Automatic (Tigger) - new ride
1991 YJ Sahara 4.0L Automatic
1978 Dodge Lil Red Express - work in progress
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Unread 08-01-2002, 07:48 AM   #4
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There is a product that Napa or 1 stop sells called the right stuff it is awesome and can dam near seal anything it dries just like rubber, better then RTV sealant. Good luck
[COLOR=Olive]89 YJ with: 2.5 OME, SOA, MX-6 shocks, 33" ProComp MTs, AE. 589 rims, SYE + CV driveshaft, Homemade Bumper and nutter bypass. Also looking for some 44s to put under it.[/COLOR]
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Unread 08-01-2002, 01:50 PM   #5
90 Wrangler
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I use Ultra Blue gasket sealer on a Felpro cork gasket. No leaks!
90 Wrangler

4.2L, 3.5" Rough Country Suspension, Juice box, 31" BFG AT's, Posi-lok, trac-lok , sway bar dis-connects, no track bars, currently changing gears!
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