Thread: Knock, knock, knock sound
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Old 06-19-2017, 08:07 AM   #20
machineman64
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Join Date: Jun 2012
Location: miles city, mt.
Posts: 40
Default Re: Knock, knock, knock sound
Another possibility could be a collapsed spring behind the cam plunger allowing the cam to move back and forth. This happened to me on a 29 model a I owned about 62 years ago.
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