Head gasket sealant
What's folks using for head gasket sealant? Never had any issues with leaking until recently. Had water in #2 and yesterday discovered #1 and #2 bubbling thru radiator. Same block and heads. Fixed water in cylinder, ran a couple races and now found bubbling. No water loss. Used shim gaskets with spray copper coat. Have been using it for years. Same process, clean surfaces, spray copper coat, torque accordingly. Has anyone had issues with copper coat?
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Re: Head gasket sealant
We always used either Hylomar or Aluminum spray paint --with hylomar spray one coat on both sides let set for a few minutes (1-2) then install---with Alum paint spray both sides 3-4 light coats let dry til almost dry (3-4minutes) then install---- check both the block and head surfaces AND both sides of the gasket in that area for any SMALL scratches, nicks etc. that might be causing the problem too-FED 387
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Re: Head gasket sealant
Are they new shim gaskets or reused gaskets with copper coat ?
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Re: Head gasket sealant
Quote:
I remember dad using aluminum paint sometimes too when he didn't have copper coat. Seemed to work pretty well too. |
Re: Head gasket sealant
Copper coat has worked well for me. 12 to 1 and 175 HP nitrous. No problems
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Re: Head gasket sealant
Sounds like you need to check the deck and head surfaces to make sure they are flat. Typically copper coat and shim gaskets is a good combo if everything is smooth and flat.
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Re: Head gasket sealant
VHT copper spray is better than all of the others
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Re: Head gasket sealant
Coppercoat best all time!
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