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New alternator: 13.2 at B+, 14.1 at D+. Why? 200 1993

posted by  Art Benstein on  Tue Apr 4 05:59 CST 2023
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last visit: Fri Oct 17 20:10 CST 2014
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If your battery is not fully charged, it will still be drawing current when the alternator is capable of charging it; that is when its output voltage exceeds the battery terminal voltage.

You say your B+ terminal voltage is still only 13.2 referred to battery negative terminal even with minimum load and cool alternator frame? I'd suspect an open diode -- something you're not going to prove to yourself or anyone else without an oscilloscope or bench test rig. Well, you could, if you went so far as Phil did to unsolder the diodes and test them individually.






--
Art Benstein near Baltimore

Anybody who doesn't know what soap tastes like never washed a dog.
-Franklin P. Jones






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New New alternator: 13.2 at B+, 14.1 at D+. Why? [200][1993]
posted by  woodshavings  on Sun Mar 26 09:48 CST 2023 >


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