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Old 03-13-2011, 05:31 PM   #5
B-O-B
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Join Date: May 2010
Location: Ft Mohave,Az
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Default Re: Mystery flathead tapping noise, suggestions?

Also run some/a lot MMO through the engine, heavy smoking is good. Use a long piece of steel rod like a long screwdriver/socket extension or stethoscope & listen for where the noise is loudest BECAREFUL WITH THE ENGINE RUNING fan blades don't for give & spark doesn't care who it bites.
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