The Ford Barn

nkaminar · 01-05-2021, 07:43 AM

Has anyone tried this? Both the horn and the wiper motor are wired in a way that does not allow the 2 field winding to be changed to a different configuration for 12 volts like you can do with the starter. But I have an idea on how to fix this.

The magnetism is a function of ampere-turns, or the amperage time the number of turns of wire used. So to reduce the magnetism with 12 volts back to where it was with 6 volts it makes sense to me to remove half the turns of wires in each field electromagnets. For the horn the number of turns is about 44, so I would unwind it so that only 20 turns are there. The armature cannot be easily changed but the whole motor would be different with the field winding not being as strong.

Your thoughts?

01-05-2021, 07:43 AM	#1
nkaminar Senior Member Join Date: Jan 2012 Location: Western North Carolina Posts: 5,850	Rewiring horn and wiper motor for 12 volts Has anyone tried this? Both the horn and the wiper motor are wired in a way that does not allow the 2 field winding to be changed to a different configuration for 12 volts like you can do with the starter. But I have an idea on how to fix this. The magnetism is a function of ampere-turns, or the amperage time the number of turns of wire used. So to reduce the magnetism with 12 volts back to where it was with 6 volts it makes sense to me to remove half the turns of wires in each field electromagnets. For the horn the number of turns is about 44, so I would unwind it so that only 20 turns are there. The armature cannot be easily changed but the whole motor would be different with the field winding not being as strong. Your thoughts? __________________ A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past.