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355A charging system

Started by Thomas B., August 04, 2017, 07:16:29 AM

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Thomas B.

1931 355A charging system is not operating properly.  Showing discharge.  Does anyone know how to test these systems?  Not sure if the gauge is inaccurate or the generator is not working.   T.Brown

31caddy

#1
Using a multimeter, check for volts and amps where the wire that comes out of the generator connects to the cutout switch mounted on top of the generator. This system has no voltage regulator. It is a third brush type generator - output is set at a fixed/desired maximum by adjusting the third brush. This is done with the generator installed. The multimeter should tell you if it is stone dead. Jason Smith at Advanced Electrical Rebuilders does a beautiful job with them.
R. Rowland CLC #28971

1931 Model 355A Sedan (Recently sold)
1931 Model 355A Fleetwood 4535 Convertible Coupe
2005 Cadillac XLR