A 6V generator won't last long (if at all) trying to make 12 volts. 12V Delco-Remy generators have red painted ID tags- - - -6V units have black ones. The internal wiring of both armatures and field coils is different. There are also different amperage ratings for generators- - - -and the regulators might have to be adjusted to match up with the generator capacity. Don't "assume" you can just bolt up mismatched parts and expect them to play well together. Drop me a PM and I'll be glad to help you with the conversion- - - -I've been working with generator/regulator systems since the early1960s, as well as spending 30+ years teaching automotive electricity.
Jerry
Thanks Jerry. No assumptions being made. I went to school for electronics eons ago so I'm pretty comfortable with these things. I'm mainly posting because I know there are nuances with some of the old systems.
Right now I have a 6v system that doesn't seem to be charging. I pulled the regulator and went through it already. Filed the points etc. It was very clean inside otherwise. I tested the 12v gens that I have in the garage, but I haven't tried putting power to the one in the truck to see if it'll spin. I measured voltage at the reg, but only got battery voltage (6.24v) on the batt and gen/arm connections. It was ~5v at the field. This was after revving it a little and also polarizing. I'm thinking the gen might need some attention at this point. I'll pull it to test and maybe put some brushes in, but this is where I'm wondering if I should just throw a 12v gen and reg at it.
