Yesterday I bought a 1945 ford 2 n that was converted to 12 volt system 20 years ago.
When I bought it yesterday it started up fine but when we trailered it home it started on the trailer then it wouldn't start the next time we tried to start it. So we jumped started it with car battery.
Today had to jump start it again and put voltage meter on it and tested battery when not running reads about 12.3 volts then after jumping it to start the voltage meter reads about 12.0 volts. So I don't think system is charging.
How shall I isolate this non charging issue?
1. Charge battery
2. Try different battery
3. Buy longer battery ground cable and ground battery to an engine bolt? Currently the battery ground cable goes to a bolt on inner hood going into steering box
4. Some how test alternator and voltage regulator.
I am not an electrical genius so any advice is appreciated.