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RWD - Exciter wire voltages

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Exciter wire voltages 900 1992

Just installed a new alternator. I'm curious about the voltages on he exciter wire off the alternator.

With key out of ignition, it measures 0 volts (Good thing).
With key on position 2, it measures 1-2 volts, very little.
With engine running, it measures 15.5 volts, yet voltage on positive alternator terminal is only 12.6 volts. Voltage at battery terminals also measures 12.6 volts. Why such difference in voltage between exciter terminal and alternator plus terminal?






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New Exciter wire voltages [900][1992]
posted by  someone claiming to be Tim  on Wed Jun 5 13:49 CST 2019 >

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