The Ford Barn

Canton_Model_A's · 06-20-2024, 11:24 AM

Folks:
I have a converted 1929 'A' over to 12v negative ground. after doing some work on it with other 'odd' issues, I have seen thru the suppliers that they sell a coil that doesn't require the ballast resistor. I had issues when I was bringing it out of storage and had already replaced the coil as it wasn't getting spark thinking that was the issue. Turned out the ammeter was faulty.

I am trying to re-wire it back to as much stock as I can, I have installed a brand new wiring harness and it has the 12v alternator. why would I require the Ballast resistor in the loop or can I use the resistor-less coil from the suppliers.

ps.
I did NOT do the conversion to 12v so I don't even know what is involved with that conversion.

06-20-2024, 11:24 AM	#1
Canton_Model_A's Senior Member Join Date: Sep 2022 Location: Canton, Michigan Posts: 321	12v Converted 1929 'A' Folks: I have a converted 1929 'A' over to 12v negative ground. after doing some work on it with other 'odd' issues, I have seen thru the suppliers that they sell a coil that doesn't require the ballast resistor. I had issues when I was bringing it out of storage and had already replaced the coil as it wasn't getting spark thinking that was the issue. Turned out the ammeter was faulty. I am trying to re-wire it back to as much stock as I can, I have installed a brand new wiring harness and it has the 12v alternator. why would I require the Ballast resistor in the loop or can I use the resistor-less coil from the suppliers. ps. I did NOT do the conversion to 12v so I don't even know what is involved with that conversion. __________________ --------------------------------------- 1929 Model A Tudor - "Darla" '29 Model A: Old enough to start with a crank, young enough to steal the show! "Stay away from negative people, they have a problem for every solution" Model A Ford Club of America Model A Restorers Club Motor City A's Club