Thank you for the reply and suggestions! I am leery using a wire brush so I'm going to skip that for now. What concerns me is I can start threading the new plug using my fingers about a turn or two. I can see the threads on the plug and they don't look angled at all, Also when I use the socket it feels like it takes to much torque to comfortably turn. I even put a bit of oil on the new plug threads and that made no difference.
I'm going to see if I can "see" the threads in the head and go from there.
I definitely appreciate you help!
chandlerbingfl
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