Ferguson TE-A 20
Q I own a 1950 Ferguson TE-A 20 tractor, which runs on straight petrol. The original six-volt electrical system is now showing its age and needs some attention.
I was thinking about upgrading it to 12 volts, using a new wiring loom and 12-volt battery. Would I need to change the dynamo, starter motor, and control box whilst doing the upgrade? Any advice on the way forward would be most appreciated.
D Smith, via e-mail
A A proper upgrade of the electrical system should include a new wiring loom, dynamo, and control box. Once the wiring, dynamo, and control box are installed, you’ll need to polarise the dynamo’s field coils.
Originally, the tractor would have been a positive earth, so to retain this a wire can be run from the negative battery terminal to
