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Old 08-21-2020, 09:13 PM   #10
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Join Date: Aug 2011
Location: Eagle Bend, MN
Posts: 1,658
Default Re: Engine Knock at 2000 RPM

Aluminum timing gear can make a metallic rattle although I think it most likely starts at lower rpm. Is a motor mount loose or front pulley touching? Take a prybar to lift engine while running.
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