John348 Posted July 22, 2021 Share Posted July 22, 2021 I am helping my friend out with his generator. The field coils were done by a previous owner and they are testing fine. Armature looks good will test it later, the brushes look pretty crappy does anyone know the application numbers? The characters I can see stamped on the brushes appears to be B78 This is about 30 years older then most stuff I am familiar with, but ohms law is ohms law. Any help is appreciated Thanks Link to comment Share on other sites More sharing options...
John348 Posted July 23, 2021 Author Share Posted July 23, 2021 I don't think these are the correct brushes, anybody have the correct information as to what are the correct brushes? Thanks Link to comment Share on other sites More sharing options...
TerryB Posted July 24, 2021 Share Posted July 24, 2021 There is a guy called old Buick’s 2 on the site that deals in ignition parts, maybe he can help? Link to comment Share on other sites More sharing options...
Old buicks 2 Posted July 24, 2021 Share Posted July 24, 2021 John, the correct make of brushes for the Stearns generator are Westinghouse. Added into the search is the question of whether the gen is early or late as the books list different numbers for the brushes. Evidently someone has changed the brushes to Bosch brushes (B78) to make it live a while longer. For the early unit, I have a brushes that are extremely close in length, width and thickness but don't know about the mounting screw C - C measurement. Best to probably call me and we can discuss. Tom 402-359-5762 Link to comment Share on other sites More sharing options...
John348 Posted July 25, 2021 Author Share Posted July 25, 2021 Tom, thank-you so much, I will give you a call later today Link to comment Share on other sites More sharing options...
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