Meanwhile, I have read several posts that mention a diode being placed in the circuitry to prevent draining the battery while not running. My question is: Where is the diode wired in, which direction, and is the 1N4001 the correct diode? I did find this wiring diagram (#5 titled "12v alternator conversion schematic for Farmall Super M", updated Jan '08)
To clarify, and because of proximity, can I add the diode between the #1 spade on the alternator and the + side of the coil? Note: the coil is a 12v Internal Resistor, so no external resistor. Do I also need to add the jumper wire between the #2 spade on the alternator and the BAT terminal on the alternator?
This is the alternator currently installed: