C15A Battery hookups

[Andrew Rowe]

Whether the vehicle is positive or negative, you should check what side of the coil that the wire comes goes to the dizzy. This will actually tell you which way it should have been connected up. The coil has 2 terminals , pos and neg.
I think by memory , but correct me if I am wrong ,is that neg earth on vehicle
you run from the neg side of coil to dizzy. If you do connect vehicle up wrong, sometimes the generator will need "polarizing" again so it will start charging, but that is another issue, and sometimes does not always need doing. Confused now!

[Eric R.]

Originally Posted by Andrew Rowe

Whether the vehicle is positive or negative, you should check what side of the coil that the wire comes goes to the dizzy. This will actually tell you which way it should have been connected up. The coil has 2 terminals , pos and neg.
I think by memory , but correct me if I am wrong ,is that neg earth on vehicle
you run from the neg side of coil to dizzy. If you do connect vehicle up wrong, sometimes the generator will need "polarizing" again so it will start charging, but that is another issue, and sometimes does not always need doing. Confused now!

I'll have to check that. My truck has had a 261 swapped in and the coil is mounted up above the engine instead of in the little isolator box on the cab frame. Shouldn't make a difference though but i will check it.

[cletrac (RIP)]

On any of the old 6 volt systems I've seen, Chev is negative and Ford is positive.

[Eric R.]

Oh and while were at can anyone give me an idea of what length the original battery cables were? I need to have a set made and want to replicate the original length.