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General Forums => The Mess Hall => Topic started by: Jeffy on April 23, 2010, 12:34:04 PM
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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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I used RTV on mine and it is no longer leaking. But I forget which one I used.
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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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i think the 94-95 was a rubber gasket.
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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...
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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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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)
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I used the Black RTV with the factory rubber gasket. Seems to be Ok.
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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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I used the regular Blue and have had no troubles.
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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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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:
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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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I use Ultra Black on pretty much everything.
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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.
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There are two different valve covers out there, a cast aluminum and a plastic valve cover.
I don't know about the plastic ones. I have the cast aluminum one and it had the gray rubber looking crap and it leak profusely when I bought my jeep.
With many engines I have had good luck with the felpro cork rubber valve cover gaskets. This is what I used on mine. I clean the old gasket off and use a scothbrite pad with brake cleaner to clean the surface.
Then I use either weatherstrip adhesive or Yamabond(i love that stuff) to glue the gasket to the valve cover and let it tack up real good. I grease the side of the gasket touching the head. Then torque it down to specs evenly, which on the 2.5 is 55 inch pounds. Remember to retorque the cover as it will settle over time. I had to do it 4 times on my jeep before it stopped settling. By greasing the one side you can remove the cover in the future without needing to buy a new gasket. This is especially important on engines with solid lifters so you can adjust the valves, which shouldn't be a problem with the jeep. I have never had a leak using the felpro cork rubber gaskets on many chevy V8's, several allis chalmers tractors and currently my jeep, Dry as a bone. Saves money as you don't need to buy a new gasket every time or reapply silicone.
I HATE silicone because as a mechanic its hell to clean up, looks like hell, and is rarely applied correctly by most folks. If you do use silicone remember to follow the directions and just set the cover on the engine and let it skin up for an hour or so before torquing down. I have seen silicone leak many times because this direction wasn't followed and the silicone squeezed out in places.
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There are two different valve covers out there, a cast aluminum and a plastic valve cover.
I don't know about the plastic ones. I have the cast aluminum one and it had the gray rubber looking crap and it leak profusely when I bought my jeep.
The plastic ones are 1987-1990 on the YJ's. Not sure if they go all the way back to '84 on the XJ's and CJ's.
I agree that most people don't wait for the silicone to harden a bit before applying.