JB weld is not a caulk but rather an epoxy. It might seal a hole, but what
are you going to do if you ever need to remove the manifold? It dries so
hard it can be machined.
I have seen hi temp silicone (Permatex 26 or 27) used to seal header gaskets
during assembly, making sure everything is clean during the assembly. I
would hold little hope that squirting some in a dirty blown gasket would
have any hope of lasting more than a few minutes.
Rick
On Sat, Sep 3, 2011 at 11:10 AM, Gene Montresor <ermontresor at snet.net>wrote:
> Has anyone repaired a exhaust manifold gasket (a small section is leaking)
> with
> JB Weld or another type of high temp caulk with any success?
>
>
> Thanks
> Gene
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