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The screw hole that holds screw/bolt for the float bowl on the bottom of one of my Carbs on a 50HP Mercury has been stripped. The screw/bolt is itself is fine but the hole has no threads. What should i do to fix this? Any ideas??
I had a similar problem with my carburetor. Not only was it stripped, but the prior owner cracked it as well trying to force the wrong size fitting into the hole. I finally just searched and found a new carburetor on ebay pretty cheap.
It's an epoxy and a release compound. You use the threaded part to form the threads, basically epoxying it into the hole, then withdraw the screw after the epoxy cures. It's about 80% as strong as the original metal.
You can file it, machine it, carve it, and otherwise clean up the job with relative ease.