Yep, it happened. My iron exhaust pipe slowly but surely chewed the threads clean out of the exhaust port in my little aluminum L-Head. I'm guessing to save the engine I'll have to either tap the port ever wider to handle the next size thread (3/4 npt?) Or maybe tap two side holes for a flanged exhaust pipe. The question remains whether there's enough material in the block for such tapping. And I'm so bummed now because I don't see a solution in sight...
I'd appreciate any advice or other words of experience you might have in this area.
It's a Briggs 6BS.
Thanks
I'd appreciate any advice or other words of experience you might have in this area.
It's a Briggs 6BS.
Thanks
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