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Old 03-23-2018, 09:42 AM   #4
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jwilliams81's Avatar
Join Date: Sep 2016
Location: Cincinnati OH
Posts: 290
Default Re: Chasing the knock.

Backfiring could be a stuck valve. That's what mine was.

Fixed it:
1931 Murray Town Sedan. Black body with Apple Green pin stripe. Cincinnati, OH
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