Good Morning Guys,
Tried the search function but couldn't find what i was looking for. I have a 93 W250 Cummins I am bringing back from the dead. The voltmeter is swinging from 12v to 18 v and i want to install an external voltage regulator to remedy this situation. Yes, i know the OEM regulator is contained within the PCM. I will be doing a PCM delete eventually and the truck will be fully mechanically controlled. So, back to the situation at hand. I have the older style square voltage regulator and not the one with the triangle looking plug. The one I want to use has screw connection points for eye lug or fork lug connections. The original OEM voltage regulator controlls voltage by allowing a ground to make up to energize the field on the alternator. So, if I connect one side of my field to ground at the alternator and the field connection from the voltage regulator to the other side to the field connection on the alternator, the regulator should control the field and therefore the voltage right? I will use a relay to power a voltage sensing line straight off the positive post of the battery so the regulator will see the actual battery voltage instead of the voltage drop from a switched 12v source, hence the use of the relay. What are your thoughts on this install??