Re: Spark plug heat shields - worth doing?
What size thread is that boss supposed to be? I can't find anything that fits, but it could just be because of paint. I thought I'd chase the threads with my 1/4-20 tap, but since you're all here, I thought I'd ask first.
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I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson
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