1940 Ford 9N Tractor alternator troubleshooting
The ignition switch was either mis-wired or partially failed on the tractor. The battery was not charging due to the field coil wire to the ...
how to convert from 6 volt to 12 volt
horn relay should be changed. The alternator can be any 10 si alternator. You can even get a single wire one so you only have 1 terminal to hook ...