I got an old farm tractor that was converted from a 6 volt to a 12
volt electrical system. A Ford solenoid was used for the starter to
replace the original BIG switch that went between the battery and that
starter. Those old tractors had a huge contact switch, but they did
not hold up well, especially when converted to 12V.
Anyhow, the tractor was converted before I bought it, and they used a
standard Ford solenoid. Yesterday that solenoid died. (I tested the
starter and battery and all of that is fine. I plan to replace it,
and have an old junked Ford car that has one. The only problem is
that the one in the tractor has only one screw for the SMALL wire to
the start switch. The solenoid in the car has two screws for small
wires. Can I use it? Which screw do I use? If I connect to the
wrong one will something short out?
And, just to know the answer, what is the second one for?