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Old 12-29-2007, 03:15 AM   #1
Tim64
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Re: Charging question

Well, it's the GM 100 amp one from Summit. I don't relly have any big requirements, hell I don't even have a radio yet.
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Old 12-29-2007, 03:47 AM   #2
slorio
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Re: Charging question

What you describe is normal. You can test with a volt meter to see what the voltage is at the battery at idle vs. reving the engine off of idle. As long as the voltage gets up to 14 volts when you rev the engine, the alternator is operating normally.

If you are annoyed by this, you can try using a smaller diameter pulley on the alternator so that it turns faster at idle. Cadillac's used to use such a pulley because of the load of electrics that they ran.

I hope this is helpful.

Regards,
Steve Lorio
New Orleans.
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