Posted by JDEM on June 28, 2017 at 05:55:01 from (70.194.20.59):
In Reply to: Alternator issues.... posted by funtwohunt on June 27, 2017 at 20:00:15:
More info on the alternator would help. I cannot find any photos in your posts although they indicated you posted images. I tried the "old view" and "modern view."
An alternator and regulator combo - should not be able to ever exceed 14.2 volts (more or less). It does not matter how bad the battery is. Also, an alternator should be capable of making whatever power it is rated at. If you have, let's say, a 70 amp alternator - and run the engine at full rated speed, it will be capable of making 70 amps until voltage rises to 14.2 volts and then cut back. It should not be cooking itself. Granted, a bad battery that demands high capacity from the alternator without ever reaching 14.2 volts won't last as long as it should. Not melt in 5 minutes though.
It sounds like your alternators have been "full fielding." What kind of alternator and where is the regulator,IF there is one? I know some have no descrete regulator and use a part of the main control computer instead. I have a generator like that. Also some new cars and trucks are also like that. Even my 2001 Dodge Grand Caravan has no stand-alone or internal regulator.
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