05-11-2007, 10:21 PM
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CC Member
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Join Date: Mar 2006
Location: San Marcos california,
CA
Cobra Make, Engine: 1989 KCC from South Africa Right Hand Drive
Posts: 1,601
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Not Ranked
Under load tapping? Sounds suspiciously like a piston pin or rod bearing.Check the valves first like Tim says. With the motor running take a short wooden broom handle ,stick one end in your ear and the other end use like stethoscope and see if you can hear where the noise really is.
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