Howdy Gang,
There is a big 12v Mopar alternator with solid state reg from the late'70's mounted on a Clark Skidder (logging equipment)with a V-6 Cummins diesel.
The Ampmeter only goes to 40 amps and I'm pretty sure the alternator puts out a lot more as the gauge is pegged+40 just after starting
then the circuit breaker trips- amps to zero
then the electric fuel shut off kills the engine.
I'm thinking on using a car heater fan Resistor to cut down the voltage from the voltage regulator to the positive brush.

Will that work?
better idea?
thanks
hank