The Ford Barn - View Single Post - 6 volt positive ground signal light question

nkaminar · 06-07-2025, 07:18 PM

Since this will be a completely independent system, run the red lead to the positive side of the battery and the ground to the negative side of the battery. The problem is going to be that you will have to run separate grounds for the lights and connect those to the negative side of the turn indicators. You will have to isolate the light by using a sheet of rubber or other insulating material and nylon bolts.

The flasher is the part of the turn indicator system that may be polarity sensitive. If you run the red (+) lead to the negative side of the battery then you could reverse the X and L terminals of the flasher. Get a spare flasher in case you burn out one. The other parts of the system that may be polarity sensitive are the lights. If they are LED's they will not work with reverse polarity.

Clarification: If the flasher is electronic it will be polarity sensitive.

You can change the polarity of your car quite easily. The only thing that will care is the generator. You can fix that by sparking the generator terminal with a wire run from the terminal on the starter switch. But if you have the electronic cutout you will have to change that out to the correct polarity.

06-07-2025, 07:18 PM	#4
nkaminar Senior Member Join Date: Jan 2012 Location: Western North Carolina Posts: 6,852	Re: 6 volt positive ground signal light question Since this will be a completely independent system, run the red lead to the positive side of the battery and the ground to the negative side of the battery. The problem is going to be that you will have to run separate grounds for the lights and connect those to the negative side of the turn indicators. You will have to isolate the light by using a sheet of rubber or other insulating material and nylon bolts. The flasher is the part of the turn indicator system that may be polarity sensitive. If you run the red (+) lead to the negative side of the battery then you could reverse the X and L terminals of the flasher. Get a spare flasher in case you burn out one. The other parts of the system that may be polarity sensitive are the lights. If they are LED's they will not work with reverse polarity. Clarification: If the flasher is electronic it will be polarity sensitive. You can change the polarity of your car quite easily. The only thing that will care is the generator. You can fix that by sparking the generator terminal with a wire run from the terminal on the starter switch. But if you have the electronic cutout you will have to change that out to the correct polarity. __________________ 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. Last edited by nkaminar; 06-08-2025 at 07:32 AM.