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Old 02-14-2013, 09:47 AM   #1
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valve cover gasket

I want to change my valve cover gasket but i dont know which one is better if the aluminum or pastic? Anyone know

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Old 02-14-2013, 09:51 AM   #2
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Ask for a Felpro gasket they will know what you want. They are rubber.

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Old 02-14-2013, 09:52 AM   #3
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So you think the rubber is better then the aluminum
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Old 02-14-2013, 10:10 AM   #4
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Worked for me on the valve cover.
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Old 02-14-2013, 10:39 AM   #5
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Quote:
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So you think the rubber is better then the aluminum

Do you mean the gasket, or the cover?

The aluminum covers warp a lot less than the plastic ones, from what I've seen.

Don't think an aluminum gasket would work well there...they usually take a lot higher torque settings to be leak free.

I have an aluminum cover & the felpro gasket = zero leaks.
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Old 02-14-2013, 11:02 AM   #6
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I bought a felpro and it isn't rubber. It's cork. The cork allows compression. Just a thought. Worked well though. No leaks any longer.
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Old 02-14-2013, 01:48 PM   #7
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Hey thanks guys . Yeah i got confuse on that i have a platic valve cover i order the gasket for it today should be here tomorrow .. thanks
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Old 02-14-2013, 01:49 PM   #8
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And one last question how hard is to change the gasket because i kind of want to give it a try it doesnt seam to hard to do just dont know if i have to pay attention to anything special or specific
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Old 02-14-2013, 02:43 PM   #9
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If its the rubber or cork gasket, its not too hard, just make sure both surfaces are clean. I usually use a little high tack to hold the gasket in place on the cover when installing. If you have the aluminum cover, that can be a pain as the RTV used is hard to clean off.
Make sure you follow the torque specs for the plastic cover, you can warp it pretty easily.
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Old 02-14-2013, 02:59 PM   #10
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when you bolt the valve cover back down make sure you use proper torque specs and torque the bolts down in the correct order.
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Old 02-14-2013, 05:34 PM   #11
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I have the plastic one and when you mean torque the bolts in the right order you mean the same way i took them down? And i also bought this gasket sealer to put on top of the gasket to help it seal better or should i not added? Thanks for the help
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Old 02-14-2013, 06:41 PM   #12
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Plastic valve covers??? Ive never heard of such a thing...
I can go to bed now, Ive learned something new today.
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Old 02-14-2013, 06:50 PM   #13
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nor have I...and I mean torque your bolts down in a spiral rotation starting with the center on both sides of the cover.
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Old 02-14-2013, 06:56 PM   #14
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Old 02-14-2013, 06:59 PM   #15
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Fel Pro cork with black RTV.
One of about 20 options on how to seal the valve cover.
I clean both surfaces with a scraper/razor first, then wipe clean with acetone.
Clean is the name of the game!
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Old 02-14-2013, 10:26 PM   #16
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Plastic valve covers??? Ive never heard of such a thing...
I can go to bed now, Ive learned something new today.
The early 2.5s had them. My 89 does their a pos in my opinion. I had to use a gasket and a tube and a half of rtv to get it to seal. needless to say i have an alluminum cover off at 99 Im gonna stick on it
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Old 02-16-2013, 08:40 AM   #17
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Do a really close examination on your cover. Those plastic ones can crack, allowing oil to leak out. After replacing two gaskets, I finally took a good look at the cover and found all sorts of cracks. Installed an after-market aluminum cover and haven't looked back.
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Old 02-16-2013, 09:46 PM   #18
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Do a really close examination on your cover. Those plastic ones can crack, allowing oil to leak out. After replacing two gaskets, I finally took a good look at the cover and found all sorts of cracks. Installed an after-market aluminum cover and haven't looked back.
YUP...

I replaced my gasket that had the plastic cover, and I broke it right at the leak I was trying to repair.

old ass POS... but I lucked out and got a newer motor for $175 that had the aluminum cover so I no longer have that worn out 4.2L. If I had to, I would have tried to find an aluminum cover before replacing that plastic junk.
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Old 02-22-2013, 08:05 AM   #19
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My gasket started leaking again took to the mechanic and he told me that the jeep has the wrong valve cover on so he order one and its going to replace mine so hopefully this will fix my leaks and the smoke inside the jeep

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