The Ford Barn - View Single Post - 3-brush gen problems

Adam/Mill Valley CA · 08-02-2021, 10:01 PM

Well, this is embarrassing! after obtaining a cutout and running the generator with that, it turns out is actually isn't charging-i.e. the generator is the problem not the FunProjects voltage reg. I thought when I connected the the batt wire directly to the armature wire and it seemed to charge to about 10 amps that it was OK, but it seems not. Trying to have the generator "motor", it would barely move.
So, I obtained a rebuilt (used) generator from a kindly Fordbarner (F1Mike in Petaluma), installed that with the original FunProjects voltage reg, and it charges just fine (!). I took apart the original generator and the rear bushing was complete toast, and the rear spigot of the armature was totally scarred. I found a nice NOS armature for a good price, and I'll use that to rebuild the original gen, with new sealed bearings/bushing etc, to keep as a spare. Live and learn I guess.

Adam

08-02-2021, 10:01 PM	#19
Adam/Mill Valley CA Senior Member Join Date: May 2010 Location: Mill Valley,CA Posts: 275	Re: 3-brush gen problems Well, this is embarrassing! after obtaining a cutout and running the generator with that, it turns out is actually isn't charging-i.e. the generator is the problem not the FunProjects voltage reg. I thought when I connected the the batt wire directly to the armature wire and it seemed to charge to about 10 amps that it was OK, but it seems not. Trying to have the generator "motor", it would barely move. So, I obtained a rebuilt (used) generator from a kindly Fordbarner (F1Mike in Petaluma), installed that with the original FunProjects voltage reg, and it charges just fine (!). I took apart the original generator and the rear bushing was complete toast, and the rear spigot of the armature was totally scarred. I found a nice NOS armature for a good price, and I'll use that to rebuild the original gen, with new sealed bearings/bushing etc, to keep as a spare. Live and learn I guess. Adam __________________ 1936 pickup, stock, black 1965 Mustang coupe 289/4bbl, black/red 1971 Alfa Romeo GTV 1750 coupe, dark red/tan 1970 911E 2.2 litre dark blue/black 1968 BMW R50/2 US, black (m'cycle) 1967 Triumph TR6R , sea foam/cream (m'cycle) 2022 Royal Enfield Interceptor 650 red (m'cycle) 1974 Honda CB750 red (m'cycle) 2000 Kawasaki W650 blue/silver (m'cycle)