Valve cover cracked

amaurer · 07-05-08, 06:40 PM

My valve cover cracked while I was torquing it down. I set the wrench to 9ftlbs, but I didn't do a very good job of torquing a bit at a time in sequence, i guess. Whats the best way to torque the cover?

Also, anyone have a spare cover? My crack extends between the middle two bolts on the top of the cover, through the ribs in that area. I snugged it up as best I could without making it worse, but I suspect it needs replacing.

Joe Egolf · 07-05-08, 07:22 PM

It is alumunum isn't it?? Maybe it can be magna fluxed or even JB welded??

amaurer · 07-05-08, 07:36 PM

I'm not so worried about it leaking from the cracks (which I could use JB weld to stop if it does), but if I torque the center bolts to spec I can hear the crack widening... I don't know if I have sufficient pressure on the gasket now.

Joe Egolf · 07-05-08, 07:46 PM

A Hah The catch 22,Maybe you could have welding shop magna flux or heli arc and beef up the inside of the cover/crack, even add a strip of aluminum inside? I forget which or what they use on alumunum?

Joe Egolf · 07-05-08, 09:54 PM

Saw one used in Canada in classifieds here from
cruiser_guy

07-05-08, 06:40 PM	#1
amaurer IH8MUD Addict Join Date: Sep 2007 Location: Cupertino, CA Posts: 999	Valve cover cracked My valve cover cracked while I was torquing it down. I set the wrench to 9ftlbs, but I didn't do a very good job of torquing a bit at a time in sequence, i guess. Whats the best way to torque the cover? Also, anyone have a spare cover? My crack extends between the middle two bolts on the top of the cover, through the ribs in that area. I snugged it up as best I could without making it worse, but I suspect it needs replacing. __________________ "... the motor car, after woman, is the most fragile and capricious thing on earth." - London Daily Mail 1908 1982 BJ42 "Krull"

07-05-08, 07:22 PM	#2
Joe Egolf IH8MUD Regular Join Date: Jun 2006 Location: W.Suffield Ct Posts: 437	rocker cover It is alumunum isn't it?? Maybe it can be magna fluxed or even JB welded?? __________________ 1981 BJ42

07-05-08, 07:36 PM	#3
amaurer IH8MUD Addict Join Date: Sep 2007 Location: Cupertino, CA Posts: 999	I'm not so worried about it leaking from the cracks (which I could use JB weld to stop if it does), but if I torque the center bolts to spec I can hear the crack widening... I don't know if I have sufficient pressure on the gasket now. __________________ "... the motor car, after woman, is the most fragile and capricious thing on earth." - London Daily Mail 1908 1982 BJ42 "Krull"

07-05-08, 07:46 PM	#4
Joe Egolf IH8MUD Regular Join Date: Jun 2006 Location: W.Suffield Ct Posts: 437	Hmmm A Hah The catch 22,Maybe you could have welding shop magna flux or heli arc and beef up the inside of the cover/crack, even add a strip of aluminum inside? I forget which or what they use on alumunum? __________________ 1981 BJ42

07-05-08, 09:54 PM	#5
Joe Egolf IH8MUD Regular Join Date: Jun 2006 Location: W.Suffield Ct Posts: 437	rocker cover Saw one used in Canada in classifieds here from cruiser_guy __________________ 1981 BJ42

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