09-08-2010, 10:21 AM | #1 |
Member
Join Date: May 2010
Location: Devils Lake ND
Posts: 45
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Jb weld
Has anyone tried jb weld on a exhaust manifold crack? I have used it on heads with good results but am wondering about the heat of the exhaust manifold.
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09-08-2010, 10:23 AM | #2 |
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Join Date: Jun 2010
Location: Temecula, CA
Posts: 4,066
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Re: Jb weld
No, but I doubt if it will take the heat?
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09-08-2010, 10:35 AM | #3 |
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Join Date: May 2010
Location: pawlet vt/ port jefferson sta. ny
Posts: 183
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Re: Jb weld
JB Weld can fix anything, well almost anything. The spec sheet for regular JB weld list max opperating temps at 500 degrees F. I feel that is too low for exhaust manifolds but any auto store has higher temperature exhaust "cement" but you must follow directions thoughly ie: cleaning, preperation,cure time etc. to get sastisfactory results. IMHO
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09-08-2010, 11:08 AM | #4 |
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Join Date: May 2010
Location: Sun City West, AZ
Posts: 489
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Re: Jb weld
Unless you are restoring your car exactly to the judging standard specs (and obviously a stove cement fix means you are NOT) then a new exhaust manifold is your best choice. At less than $100 bucks from most of the suppliers, the repo manifolds are a bargain, too. And best of all, no-droop at the rear exhaust port will mean that all your engine's cylinders will get the chance to breath evenly.
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09-08-2010, 02:24 PM | #5 |
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Location: Freehold, NJ
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Re: Jb weld
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