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Old 03-14-2011, 02:58 AM   #12
fordscript
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Join Date: May 2010
Location: Oamaru, New Zealand
Posts: 416
Default Re: Mystery flathead tapping noise, suggestions?

Afew years ago I had a similiar problem....turned out to be the bendix drive on the starter motor. The little spring that holds the bendix back from engaging the ring gear had 'disappeared', and every now and then with the engine running, the bendix drive would move forward and touch the ring gear, and made a very convincing knock/tap.
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