[Royce P]

Been using 12 volts in Model T's forever, never had any issue with starters or starter bendix or any other problem. The key is to use smaller diameter wire on the positive cable. Two of my t's have 4 gauge cable, 12 feet long, to connect the battery to the starter solenoid. This makes a considerable voltage and current drop at the starter. They sound like a 6V starter.


I have taken apart T engines that never had a 12 volt battery and found all the teeth bent over on the ring gear, or blown up starter bendix, and worse. What damages them more than anything is starting the car with the spark advanced too much.