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Why would you want to use Loctite on a carb bowl drain screw? Why not a use the yellow Teflon tape (for gas) and/or a new piece of gasket material for a washer? If the threads are stripped, why not tap the next bigger screw size and use a bigger screw. JMHO
Let me try to answer your questions:
“Why would you want to use Loctite on a carb bowl drain screw?”
The drain plug comes with a sealant directly from the factory. In this case, I recommended Loctite as a thread sealer. The thread sealer helps insure against a leak. It’s also a quick, simple, and effective solution.
“Why not use the yellow Teflon tape (for gas) and/or a new piece of gasket material for a washer?’
The yellow Teflon tape is probably fine. This seems like a matter of preference. As far as the new piece of gasket material for a washer, that’s not going to work. This is a cylindrical plug, not a screw with a head.
” If the threads are stripped, why not tap the next bigger screw size and use a bigger screw.”
We don’t know if the threads are indeed stripped at this point, but if they are yours sounds like a good solution.
Again, am probably confused about which screw the poster is trying to seal up. But, the little brass carb bowl drain screw does not use any gaskets for sure. Over tightening the screw will surely create leaks, I’m guessing this is some sort of pipe thread arrangement. You could always try a new brass drain screw also. It would be mighty difficult to wrap this tiny screw with teflon tape, so a very careful application of an appropriate sealer (won’t be broken down by gasoline) is the only other option.