258 valve cover gasket - JeepForum.com
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post #1 of 17 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 17 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 17 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 17 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 17 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 17 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 17 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 17 Old 06-20-2017, 04:04 PM
258
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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 17 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 17 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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post #11 of 17 Old 07-13-2017, 10:34 PM
Renegade82
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The Fel-Pro vs50244r is a cork-lam gasket with a metal center. I don't think these are considered "reusable". The DryPlus ones are but they're silicone and not available for the 258. They show one for an 86 but I bought one and it's not right. I think it's for the 242 (4.0) sixes they put in wranglers.

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post #12 of 17 Old 07-13-2017, 11:16 PM
whollsee
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Quote:
Originally Posted by Renegade82
The Fel-Pro vs50244r is a cork-lam gasket with a metal center. I don't think these are considered "reusable". The DryPlus ones are but they're silicone and not available for the 258. They show one for an 86 but I bought one and it's not right. I think it's for the 242 (4.0) sixes they put in wranglers.

Sponge-lam version is re-useable. My understanding is cork-lam was older version. . I've used both. Fel pro site is not helpful at all I have found in the past. I think the version you purchased should have stated 1987-95 compat. as a case in point. Just to confuse us various vendors have cork lam and sponge lam mentioned within the same product description eg . O'Reillys...

Found this recently...

http://www.militaryjeepers.com/commu...58-valve-cover
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post #13 of 17 Old 07-13-2017, 11:17 PM
258
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Quote:
Originally Posted by Renegade82 View Post
The Fel-Pro vs50244r is a cork-lam gasket with a metal center. I don't think these are considered "reusable". The DryPlus ones are but they're silicone and not available for the 258. They show one for an 86 but I bought one and it's not right. I think it's for the 242 (4.0) sixes they put in wranglers.
Got my eye on a VS50244 but the "C" (cork). Maybe I'll get the "R" (rubber). I have the cork on now, just couldn't remember the part number for the aluminum valve cover. Anyway, the way I installed it previously was to seal it to the valve cover itself, then sealed it to the head. It has never leaked. The only reason I need to remove it is to check for the cause of a slight ticking. It driving me nuts. I've managed to reduce it quite a bit but I guess since I know the engine well, I hear it clearly. Others think I'm nuts. lol. Not looking forward to it for fear I may discover more than I want to.
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post #14 of 17 Old 07-13-2017, 11:25 PM
258
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Quote:
Originally Posted by whollsee View Post
Sponge-lam version is re-useable. My understanding is cork-lam was older version. . I've used both. Fel pro site is not helpful at all I have found in the past. I think the version you purchased should have stated 1987-95 compat. as a case in point. Just to confuse us various vendors have cork lam and sponge lam mentioned within the same product description eg . O'Reillys...

Found this recently...

http://www.militaryjeepers.com/commu...58-valve-cover
Great Link! . . . is the '710' cap better than the plastic one that came with the aluminum valve cover? Mine always leaked around base but I put an 'O' seal around that base and it has never leaked since. If it's better, maybe I'll switch.
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post #15 of 17 Old 07-14-2017, 01:01 AM
Bigmaaty
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I used these bolts:https://www.albanycountyfasteners.co...m?1=1&CartID=0

And this gasket from Rockauto:FEL-PRO*VS50522T*PermaDryPlus®*Info
w/Aluminum valve cover; PermaDryPlus®

This was on my '89 YJ, not my CJ but should be the same for later models with the alum. valve cover. Was meticulous in cleaning both mating surfaces. Installed with no RTV. Carefully torqued all the bolts as spec'd in the recommended pattern with blue Loctite. It has been about 4 months and so far bone dry all the way around. Seemed crazy at the time to spend $30 on a gasket but had seen it recommended here and I think it was worth it. The washer head bolts were a good addition in my opinion as mentioned by John above. Hope braggin' on it doesn't jinx me, so far so good.
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