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TerryH · 07-25-2020, 12:40 AM

I also had a faint knocking sound that none of my Model A friends or I could identify. It ended up being a fiber timing gear going bad, which eventually failed. New gear installed and the noise went away.

07-25-2020, 12:40 AM	#15
TerryH Senior Member Join Date: May 2010 Location: Fountain Valley, Calif. Posts: 937	Re: Help diagnosing engine knock I also had a faint knocking sound that none of my Model A friends or I could identify. It ended up being a fiber timing gear going bad, which eventually failed. New gear installed and the noise went away.