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Old 10-23-2019, 11:20 AM
boneste624's Avatar
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Carb Alternator questions.

So I'm not sure if my alternator is charging my battery properly as it reads 13.8 when at operating temp at the battery terminals. But at the alternator post is reads 14v. It's a 2 wire alternator from a 92 Camaro tbi. I'm running a carb setup and have heard about a resistor that's needed for the alt to charge. Not sure if it applys to my alternator. Can anyone recommend a good alternator for carb setup.?

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Old 10-23-2019, 02:08 PM
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The alternator is fine. The voltage difference you are seeing is from resistance in the wiring, which is normal. Alternator should put out between 13.6 and 14.2 volts.

If it wasn't charging, checking across the battery terminals would give a reading of 12.6 volts at best, on a fully charged battery....and something less with the car running or anything electrical turned on. Checking at the back of the alternator that wasn't charging would give something like 12.3 volts or less.
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