[Healeys] non Healey, car question

[Bob Spidell]

The problem with any sealant is you're coming from the outside in; i.e. you're likely going to just smear a bunch of 
goop on the outside, which won't hold very long (if at all).  Now, if you had some way to inject the sealant under 
pressure you might have a decent repair until you can get the manifolds off and replace the gasket.   Something less 
viscous than epoxy--like a cyanoacrylate ('crazy glue')--would penetrate better but I don't know of any that could 
endure the temperatures.

I believe JB Weld would do the job but, again, how do you force it into the crack under pressure?  Also, you may have to 
mill the surfaces to get the epoxy off when you finally do a proper repair.

I've used this stuff to help seal up exhaust leaks, you could give it a try:

http://www.permatex.com/products/automotive/automotive_gasketing/gasket_makers/auto_permatex_ultra_copper_maximum_temperature_rtv_silicone_gasket_maker.htm

-- or --

*http://preview.tinyurl.com/6gapxb2*

Bob


On 9/3/2011 11:10 AM, Gene Montresor 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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Bob Spidell           San Jose, CA            bspidell at comcast.net

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