Posted by John T on February 17, 2012 at 05:06:59 from (71.52.113.165):
In Reply to: Bad Generator posted by Bill in IL on February 16, 2012 at 19:07:29:
Sure, old fashion starter genny repair shops sell replacement field coils.
As far as the Motor test I always advise folks if it spins with voltage applied from frame ground to the ARM post the bushings and brushes and armature are at least in decent shape and if it slows wayyyyyyyyy down when you frame ground the Field that tells me the Fields are likely okay.
HOWEVER if theres no speed change with the field grounded as Jim notes the fields are open (often where the 2 splice in the middle) or shorted.
Its not to hard to use an ohm meter to test for open or grounded fields or to test for a shorted armature
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