PUTTING ALT ON D-10 III

What do I need to do to put a 1 wire alt on my D-10, use the hot wire that's running to gen now for the alt or what? thanks again

The hot wire from the generator goes to a voltage regulator or cutout. You don't want that in the alternator circuit. The hot wire from the alternator should go directly to the new 60 amp ammeter with the same size hot wire then going to the battery connection generally at the starter solenoid post that is connected to the battery. Most all alternators are negative ground which might require some battery and ignition coil changes.

The one wire alternator has to be spun fast to get it to start charging then so long as the engine isn't stopped it will charge down to low voltage. The two wire connection applies a switched voltage to the internal regulator to get it to start without being spun fast. Could come off the accessory circuit of a replacement ignition switch or from the ignition circuit. When it comes from the ignition circuit it needs a diode or series resistor to prevent the alternator back feeding the ignition circuit to prevent the engine from shutting down. That resistor can be an alternator indicator dash lamp.

10 gauge from the alternator power will limit the maximum charging current to about 35 amps, it does that on my gas 4020. I used silicone insulated wire so it can handle being hot. 6 or 8 gauge would allow faster charging.

Gerald J.

Go with a CS121. It's smaller. Probably easier to find a one-wire version too.