The Ford Barn - View Single Post - Need Help with a Model A that’s Overcharging.

rotorwrench · 12-07-2023, 05:15 PM

I finally found a "universal " cutout at the Brillman Company that looks like that. It is a diode type unit but is made more for odd generators and tractor generators. The generator may be from a model B Ford. As was previously mentioned, the later generators had wires to connect the cutout. The model As were made in more than a few configurations. They had a screw terminal with insulator bushings instead of wires. That one could be set up with a screw type terminal if the exit hole in the case is the right size.

Ford mechanics used an ampere meter set in line with the output terminal on the OEM round type cutout relays to set the output amperage. They would set them for daytime charge rate initially at around 5 or 6 amps while idling. The output voltage will vary depending on battery condition and output amperage. I wouldn't use a voltmeter to set the output. Just make sure to maintain good tight and clean wiring connections. Make sure that wiring in the dash panel doesn't short out on anything. It's a tight fit in there and in the terminal box.

12-07-2023, 05:15 PM	#18
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,509	Re: Need Help with a Model A that’s Overcharging. I finally found a "universal " cutout at the Brillman Company that looks like that. It is a diode type unit but is made more for odd generators and tractor generators. The generator may be from a model B Ford. As was previously mentioned, the later generators had wires to connect the cutout. The model As were made in more than a few configurations. They had a screw terminal with insulator bushings instead of wires. That one could be set up with a screw type terminal if the exit hole in the case is the right size. Ford mechanics used an ampere meter set in line with the output terminal on the OEM round type cutout relays to set the output amperage. They would set them for daytime charge rate initially at around 5 or 6 amps while idling. The output voltage will vary depending on battery condition and output amperage. I wouldn't use a voltmeter to set the output. Just make sure to maintain good tight and clean wiring connections. Make sure that wiring in the dash panel doesn't short out on anything. It's a tight fit in there and in the terminal box.