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Old 08-04-2014, 10:18 PM   #8
G&R's57GMC
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Join Date: Aug 2010
Location: Shasta Lake, CA.
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Re: generator to alternator conversion

Running through the Ammeter to the Bat from the Alternator is OK IF the Alternator is a low output 37 amp unit.

BUT if the Alternator puts out more then that say 50 or 60 Amps the Ammeter will be short lived.

Its best to run a 10 gauge wire from the Alternator to the Battery ( or junction block or starter ).

To monitor charging install a volt meter that is switched on with the key. This will prevent a minor draw on the battery when the vehicle is not used.

BTW if you use a 1 wire Alternator you will have to goose the engine to get it to start charging.
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‘57 GMC NAPCO Long Bed V8 4 speed Bought 2008
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'56 Chevy Long Bed I6, 4 speed Bought 1990 Sold 8.22.2020
’56 GMC Suburban Pickup V8, 4 speed Hydramatic Bought 1996 Sold 10.11.2020
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