Quote:
Originally Posted by Allensracing
Red, if my memory serves me, the blue and white wires are the factory alternator control wires. that looks to me like the original alternator with an external regulator. it is hard to tell from the picture, but there is nothing else up there for the blue and white wires.
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Right, but that isn't the original alternator. Thats a chrome one and usually they are the one wire versions nowadays. If the blue and white wires go to the external voltage regulator, it can be made to work properly, just not sure on how to do that. If your voltage regulator has been bypassed then those two wires serve no purpose other than filling the hole on the alternator. You will have to verify that the regulator is still wired for operation and not bypassed. If it is wired right, then you can start the engine and check the output voltage at the battery with a voltmeter to see what the regulator is putting out at idle. Could be that its time for a new regulator. They do go bad after 30+ years.