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Old 08-22-2023, 02:51 PM
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Grubby Grubby is offline
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Join Date: Nov 2007
Location: Clayton, IN
Cobra Make, Engine: ERA 838
Posts: 1,122
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Default Ammeter Shunt wire / No charge

838 is complete and I am doing some things that improve the car.

I installed an Ammeter shunt wire to protect the system. It is a 12 gauge wire run from the protected side of circuit breaker, that is near the starter solenoid, to the powered side of fuse 1. Fuse 1 runs the cooling fans. This basically connects the two sides of the Ammeter gauge.

With the shunt wire installed the Ammeter reacts like I would expect. The needle swings much less than without. It is easy to see the difference with the engine off and load applied.

The problem is, it will not charge. It will stay in a slight discharge. I don't see how this could impact the voltage regulator.

I would like to have the shunt wire, but normal charging is important.

John
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