Author Topic: Valve Cover Gasket  (Read 1625 times)

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Offline Jeffy

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Valve Cover Gasket
« on: April 23, 2010, 12:34:04 PM »
Seems mine is leaking a bit.  It doesn't look like there is a cork gasket but rather some grey RTV from the factory.  So should I use RTV Blue or do I need Red?  Or buy the fel-pro cork gasket?
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Offline jfrabat

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Re: Valve Cover Gasket
« Reply #1 on: April 23, 2010, 12:58:22 PM »
I used RTV on mine and it is no longer leaking.  But I forget which one I used.
'94 YJ 2.5L with 4" RE lift, Superwinch EPi9.0, FoMoCo e-Fan, SD30 and SD35 w/ARB-5.13, 165A alt., 33" BFG KM2 on 15" AR wheels, Sony sound system, Pavement Ends Hardtop, Hydroboost

Offline Jeffy

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Re: Valve Cover Gasket
« Reply #2 on: April 23, 2010, 01:16:51 PM »
I used RTV on mine and it is no longer leaking.  But I forget which one I used.
Blue is the regular one, I think.  Then there's Ultra Blue which, is higher temp and then there is red.

I guess if they use grey then going with Ultra Blue should be fine.  Saves me the hassle of going to the auto parts store.  I always keep a tube of Ultra blue around.
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Offline sharpxmen

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Re: Valve Cover Gasket
« Reply #3 on: April 23, 2010, 01:47:27 PM »
i think the 94-95 was a rubber gasket.
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
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Offline jfrabat

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Re: Valve Cover Gasket
« Reply #4 on: April 23, 2010, 01:48:24 PM »
i think the 94-95 was a rubber gasket.

OK, mine HAS a rubber gasket, but I had to use RTV because the gasket alone leaks...
'94 YJ 2.5L with 4" RE lift, Superwinch EPi9.0, FoMoCo e-Fan, SD30 and SD35 w/ARB-5.13, 165A alt., 33" BFG KM2 on 15" AR wheels, Sony sound system, Pavement Ends Hardtop, Hydroboost

Offline Jeffy

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Re: Valve Cover Gasket
« Reply #5 on: April 23, 2010, 01:53:44 PM »
i think the 94-95 was a rubber gasket.
I've put a cork gasket on a pre '91 before but after looking at mine, I can see the grey RTV.
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Offline sharpxmen

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Re: Valve Cover Gasket
« Reply #6 on: April 23, 2010, 01:58:14 PM »
I've put a cork gasket on a pre '91 before but after looking at mine, I can see the grey RTV.

you could use black RTV, would work just fine (silicone is heat resistant, red would be overkill for the valve cover imo + it sticks out like a sore thumb)
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
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Offline neale_rs

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Re: Valve Cover Gasket
« Reply #7 on: April 23, 2010, 02:03:09 PM »
I used the Black RTV with the factory rubber gasket.  Seems to be Ok.
'95 YJ, 33 x 12.5 mud tires, RE 4.5 ED lift, Atlas 4 speed, rear D44, ARBs front and rear, 4.56 gears, 8000# winch

Offline aw12345

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Re: Valve Cover Gasket
« Reply #8 on: April 23, 2010, 02:12:50 PM »
Use the no leak stuff, grey, blue black or red take your pick. The regular RTV will work but if there is any oil or grease left it will leak there. The no leak stuff is the bomb, for pretty go with gray or black
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OH-YJ

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Re: Valve Cover Gasket
« Reply #9 on: April 23, 2010, 02:50:11 PM »
I used the regular Blue and have had no troubles.

Offline Jeffy

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Re: Valve Cover Gasket
« Reply #10 on: April 23, 2010, 03:50:43 PM »
Use the no leak stuff, grey, blue black or red take your pick. The regular RTV will work but if there is any oil or grease left it will leak there. The no leak stuff is the bomb, for pretty go with gray or black
Yeah, even the Permetex Blue seems to be OK for valve covers.  I usually go with the Ultra Blue since it's better then OE/Grey/Black or Blue.  The only 'problem' is that it's blue.  :lol:
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Offline FourbangerYJ

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Re: Valve Cover Gasket
« Reply #11 on: April 23, 2010, 04:04:18 PM »
Yeah, even the Permetex Blue seems to be OK for valve covers.  I usually go with the Ultra Blue since it's better then OE/Grey/Black or Blue.  The only 'problem' is that it's blue.  :lol:

It's to bad your not Swink. Seems like all his stuff was painted blue. :uhoh:
Scott~

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Offline Jeffy

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Re: Valve Cover Gasket
« Reply #12 on: April 23, 2010, 04:32:56 PM »
It's to bad your not Swink. Seems like all his stuff was painted blue. :uhoh:
I had to repaint my shackles because of that.  The bushings ARE blue though.  (they're from Swink)
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Offline oldjeep

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Re: Valve Cover Gasket
« Reply #13 on: April 24, 2010, 06:15:43 AM »
I use Ultra Black on pretty much everything.
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Offline chardrc

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Re: Valve Cover Gasket
« Reply #14 on: April 25, 2010, 02:11:20 PM »
i however if you want a super strong silicone that can even seal cracks permatex makes something called The Right Stuff

we use The Right Stuff on just about everything... going to use it on my leaky valve cover when i get some time. 
1990 YJ 4cly, ax5, 2.5 inch BDS lift, 31 MTr\'s,  Powertrax-lockers all around, track-bars removed, boomerang shackles, warn m8000 winch, electric fan. [sold but not forgotten]

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