Posted by fixerupper on March 05, 2021 at 09:28:30 from (100.42.82.64):
Working on a 1943 airport tug with a Chrysler 6 cyl flathead. The genny is charging wild. I am pretty sure it is an A system. When I disconnect the field wire from the genny it quits charging so the field is not grounded internally. When I ground the field terminal on the genny with the engine running it will charge wild like it should with the field dead grounded.
This leaves the regulator as the suspect for the overcharging. Is there anything to be adjusted or do you think the regulator has an internal short somewhere? The battery terminal on the regulator is to our right in the picture, the field is in the center and the armature terminal is to the left which is different arrangement than I am used to but this is what it is.
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