Charging light on 1963 thunderbird

355

Asked by Apr 20, 2017 at 08:21 AM about the 1963 Ford Thunderbird

Question type: Maintenance & Repair

1963 Thnderbird battery good, Alternator good, New relay ( later type works but light on dashboard comes on and stays on when motor running the only clue I had was that this started after a cold ( damp) winter Ive

5 Answers

85,565

It could be the voltage regulator for the alternator. Check to see if it is putting out 14.5 DCV at the battery when the engine is idling.

2 people found this helpful.
355

Yes about 14.1 when idling?

85,565

14.1 DCV is good. What happens when you rev the engine up? Does it stay 14.7 and under?

355

Yes stays the same even with lights on about 14.2

85,565

Charging system is working properly. There is a Instrument Cluster Voltage Regulator that is part of the charging system that may be the cause. Check it out on this sight.... https://www.carid.com/standard/instrument-cluster-voltage-regulator-mpn-vrc-604.html?singleid=64677481&url=15437710

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