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Ford CMP (Flathead V8) ammeter wagging back and forth

Lauren Child


My CMP has started wagging it's ammeter needle rhythmically back and forth as I rev the engine. It operates fine at low revs but as they increase it starts happening.


I seem to remember this means something (overload?) but I can't find the reference in any of the books I'm picking up.


Can anyone clue me in?

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