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Rory535i
02-07-2006, 05:21 AM
I just rebuilt my alternator with new voltage regulator, brushes, bearings etc. I put it back in the car and I was just wondering what voltage i should be reading. I got a constant 12.3 volts when reading off the alternator whether i was revving the engine, had lights on or off etc. I was under the impression that if you increase the revs the voltage will go up slightly or is the voltage regulator just doing it's job and keeping a steady current? cheers.

Derek A.
02-07-2006, 05:54 AM
you should be closer to 13.5-14 volts when its running. Should pick up a tad off idle.

winfred
02-07-2006, 08:32 AM
12.3 is battery voltage, something aint working