Would you happen to have a wiring diagram for a 1964 MF-50 with a Perkins engine, mine has also been converted to a alternator. If so is there a link you could send me so I can look at it or even email it to me.
To wire the tractor for an alternator with an internal regulator you can eliminate all the wiring for the generator and regulator. You can use the wiring diagram found on our website to wire the alternator. http://fergusontractors.org/nfs/wp-content/uploads/electrical/Delco-2-wire-Alternator.pdf. Since your tractor has a pressure switch to turn on the power for the fuel gauge circuit, use the same pressure switch to turn on the exciter circuit, terminal #1, in place of the diode and ignition switch. The exciter circuit needs to be connected to the side of the pressure switch that is “hot” when the engine starts.