Madison Orange
New User
Is this solenoid ground or 12v activated?
- Thread starter Madison Orange
- Start date
Anonymous-0
Well-known Member
Most all are a 1 wire solenoid, that picks up ground from the starter. If you can't find a 1 wire solenoid, use a 2 wire, and run one terminal to ground. If you are asking if the system is positive or negative ground, remember that all 6 volts are + ground, and some 12V are + ground. Find the serial # of the tractor, on the carb side of the torque tube, just back of the motor. It is on the very front edge of the bell housing. Once you post the serial#, we can tell you whetherit is supposed to be + or - ground.
Madison Orange
New User
It"s a 12v system. I was talking with Ford guys and that uses the 2-wire.
I was unsure, after speaking with them, if Allis used a ground activated means on the solenoid or a hot from the battery.
I was unsure, after speaking with them, if Allis used a ground activated means on the solenoid or a hot from the battery.
Madison Orange
New User
Thanks- it's clear now.
The Ford style is a 4 wire type 12 volt activated. @ large terminals and 2 small terminals. Some call it a 2 wire.
One large terminal to the battery and one large terminal to the starter.
One small terminal {S} activates the solenoid from the key and the other terminal bypasses the ballast resistor when used to give a full 12 volts to the coil while starting the engine.
If you are using a 12 volt coil with internal resistance that does not require a ballast resistor you don't need to use the 4th terminal {I} on the solenoid.
One large terminal to the battery and one large terminal to the starter.
One small terminal {S} activates the solenoid from the key and the other terminal bypasses the ballast resistor when used to give a full 12 volts to the coil while starting the engine.
If you are using a 12 volt coil with internal resistance that does not require a ballast resistor you don't need to use the 4th terminal {I} on the solenoid.
Brian Jasper co. Ia
Well-known Member
I've never heard of a starter solenoid that grounded through the starter itself, unless it was part of the starter, and shifted the gear along with switching the motor. (like a GM starter) Just get a Ford starter solenoid and leave the 2nd small terminal un connected. The bracket needs to have a good ground connection for it to work.
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