Valve Cover Replacement - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 06-18-2003, 02:45 PM
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Valve Cover Replacement

I have a 1981 CJ, 6 cyc, 258. My old plastic valve cover is shot, I would love to replace with an aluminum cover. The problem is the aluminum covers need drilling and tapping. I haven't done much work on this jeep and I learning as I go. Should I stick with the plastic replacement or should I attempt to drill and tap?? Is this a really complicated procedure ?? I'm no mechanic, I've done work on the Jeep and other cars but this is getting a little out of my practical experience. Any suggestions or tips would be great.

Thanks in Advance
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post #2 of (permalink) Old 06-18-2003, 03:03 PM
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Re: Valve Cover Replacement

1. AMC did do something about the lousy 258 I6 valve cover.
2. They released an update kit in 1986, part number is JS001668.
3. The part is hard to find, but well worth the hunt.
4. Despite the instructions, it requires NO head drilling and tapping.
5. I've had one one my 83 CJ7 for 8 years.
6. There has not been a drop of oil leaked since installation.
7. Install was about three hours start to finish.
8. It's an easy upgrade.
9. As a souce for the part look locally for the item at your dealer.
10. It'll be NOS.
11. Parts Mike had some in 1999, and may still have some left,
12. Or know where they can be obtained.
13. His Internet address is:
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post #3 of (permalink) Old 06-18-2003, 03:28 PM
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Re: Valve Cover Replacement

My 80 Cj-5 has an 81 258 in it. I put the aluminum valve cover on it 2 yrs ago, and if I remember correctly I got it from Jc Whitney. I do not remember having to drill anything.
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post #4 of (permalink) Old 06-18-2003, 03:41 PM
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Re: Valve Cover Replacement

A day late and a dollar short...I just sent one of these update kits out to a guy yesterday.
Basically it cosists of 4 longer head bolts for the drivers side, 2 new rocker arm bridges that replace the ones that hold the valve cover in place on the old design, 4 large round threaded nuts that clamp the driver side of the valve cover down, and I think 5 bolts that bolt the passenger side , front and back to the head.

I just sold a plastic valve cover in great shap e and threw in the update kit for $17 total. The buyer got a good deal from me off Ebay. [img]images/graemlins/cool.gif[/img]
Dan 84 CJ-7 is offline  
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