Question about Faria Chesapeake Ss Marine Instruments Tachometers Style 7000 Rpm

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Faria tach connected to alternator, irregular readings, needle bounces or does not leave zero, same readings on upper and lower tachs, Ford Leman engine, wiring connections are tight

Condition is irregular. I have checked all connections, all appear tight. Connection at alternator is trough a plastic clip direct to alternator fitting.

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Have you Alt tested for a bad diode. They still put out, but have an irregular pattern and lower voltages. That would bounce your tack all over the place.

Posted on Nov 29, 2012

  • ernie_ka Nov 29, 2012

    Thanks. I will have it checked.

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Posted on Jan 02, 2017

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