258 valve cover gasket - JeepForum.com

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post #1 of 10 Old 06-19-2017, 02:37 PM Thread Starter
rmy
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258 valve cover gasket

So after owning a CJ7 since 1990, I can finally say I have won the leaking valve cover war. You may be asking how.
1) aluminum valve cover 2) using permatex #2 non-hardening sealant, place clean vc upside down, attach gasket and allow to cure 12 hours; use bolts through holes to ensure alignment. 3) attach valve cover to head with same sealant; do not over torque 4) allow to dry 24 hours before driving.
Been leak free for a year now. GL


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post #2 of 10 Old 06-19-2017, 07:07 PM
STJP
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I'm thinking I might just weld mine.
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post #3 of 10 Old 06-20-2017, 05:35 AM
Matt1981CJ7
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A heavy bead of the Right Stuff, with no gasket, works for me.

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post #4 of 10 Old 06-20-2017, 10:33 AM
Clemmohb
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You Are lucky .Go to 2.5 l and the only valve covers I can find are plastic like the original equipment

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post #5 of 10 Old 06-20-2017, 01:56 PM
258
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Did you use the CORK or RUBBER gasket?
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post #6 of 10 Old 06-20-2017, 02:19 PM Thread Starter
rmy
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Special thicker cork gasket made for the aluminum valve cover. Bought from 4WD.com.


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post #7 of 10 Old 06-20-2017, 03:32 PM
whollsee
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Fel Pro - neoprene with thin metal core. No sealant required. Totally reusable. I use with alu vc.

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post #8 of 10 Old 06-20-2017, 04:04 PM
258
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Cj

Quote:
Originally Posted by whollsee View Post
Fel Pro - neoprene with thin metal core. No sealant required. Totally reusable. I use with alu vc.
You have that Fel Pro part #? I have the Omi aluminum vc.
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post #9 of 10 Old 06-21-2017, 03:47 AM
whollsee
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Quote:
Originally Posted by 258 View Post
You have that Fel Pro part #? I have the Omi aluminum vc.
VS50244R. Mine is an '85 head. Please double check that PN [If you aren't spooked by the $48 RRP!!!]. Need to make sure it is the "sponge-lam" version. I think that PN was originally a cork-rubber compound and there is still old stock floating around.
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post #10 of 10 Old 06-21-2017, 04:14 AM
John Strenk
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After flattening and straightening the lip my stamped steel valve cover, I have it successfully sealed it now for 5 years. Most people just torque the heck out of the screws and bend the lip and crush the gasket. If you can flatten it out and use the proper torque, you can get t to seal properly again. You can also get "washer" that are wider that helps distribute the torque.


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