torque spec for valve cover bolts

scottyrock · Mar 16, 2009

I am in need of replacing the valve cover gasket. This will be my first time to do this to any vehicle but seems simple enough. I have searched threads but see a variety of torque specs so I am not sure what it really is. Any other info that could help me in the process would be great. Thanks.

Talyn · Mar 16, 2009

85 in pounds for the steel cover.. don't know about the aluminum cover, but probably the same.

5-90 · Mar 16, 2009

Sounds about right for the aluminum cover as well - it's more a function of gasket integrity than anything else.

Click the link in my sig, go to the Tech Archive, and go from there. If I don't have your year listed, it's because I haven't gotten that FSM yet, pick a year close to yours and use that.

scottmcneal · Mar 16, 2009

GREAT sig 5-90

5-90 · Mar 16, 2009

scottmcneal said:
GREAT sig 5-90

What, the quote from Sid? Yeah, I always enjoyed that, and I hadn't used it for a while. It came up in rotation again, until I think of something else I haven't used in donkey's years...

johnnyc · Mar 16, 2009

According to Chilton's (and we all know how accurate they are), the torque value is 55 INCH/lbs. or 6 Newton meters.

Talyn · Mar 16, 2009

johnnyc said:
According to Chilton's (and we all know how accurate they are), the torque value is 55 INCH/lbs. or 6 Newton meters.

For what year/ valve cover?

winterbeater · Mar 16, 2009

As far as other tips, I like to use gasket adhesive to fix the gasket to the removable part (in this case the valve cover). That way it stays in place, but you don't have to scrape the head the next time you replace that gasket.

scottyrock · Mar 17, 2009

Talyn... it is a 91, 4.0

5-90 · Mar 17, 2009

scottyrock said:
Talyn... it is a 91, 4.0

I think I've got a 1991FSM, so there should be specs for it directly up on the site.

scottyrock · Mar 17, 2009

thanks 5-90. Looks like 70 lb inches

5-90 · Mar 17, 2009

scottyrock said:
thanks 5-90. Looks like 70 lb inches

Sounds about right. If you don't have a torque wrench that reads in pound-inches, grab your smallest torque wrench and set it to 6 pound-feet (as you've probably guessed, there are 12 pound-inches in one pound-foot, so 6 pound-feet = 72 pound-inches. It's close enough for government work, and half the time it's what I end up doing anyhow.)

winterbeater · Mar 17, 2009

Or in a pinch, just snug it up with a 1/4" drive with moderate wrist power. These aren't cylinder head bolts, just don't break 'em. But you'll dent the cover way before that happens.

scottyrock · Mar 17, 2009

Great... thanks guys. I will tear into it tomorrow. Hey 5-90.... if I do the gov't work we have seen lately... the Jeep may blow up!!! thanks for the replys.... much appriciated

torque spec for valve cover bolts

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