I have a 1950 GMC 1/2 ton (6 volt positive ground) that I am trying to adjust the voltage regulator on, and need a little guidance. I recently had the generator rebuilt and tested, and everything is within spec on that. Now I am trying to get all the settings within spec on my voltage regulator.
I do have a shop manual for the truck, and the procedures seem pretty simple. I have made all the correct mechanical adjustments (point gap, air gap), and now need to make the electrical adjustments. The manual doesn't mention in which order I should make the adjustment in, as far as adjust cut out relay first, or voltage regulator first, or the current regulator first. Does it matter in which order I adjust the three? Will adjusting one effect the others? The reason I ask is I could not get my cut out relay to open and close within spec. The previous owner was running an 8 volt battery, and my thinking of why I couldn't get cut out relay adjusted was because the voltage output was cranked up because of the 8 volt battery. It seems to me that I would need to get the voltage output within spec before I could adjust the cut out relay. Is this correct?
As mentioned the previous owner of the truck was running an 8 volt battery, and I suspect that the voltage output was turned up because of this. My manual says to adjust the voltage output by using either a fixed .75 ohm resistor, or .25 ohm variable resistor. I can't seem to find a .75 fixed anywhere. Does anyone have a part number they could point me to? I was able to find a .80 ohm fixed, would that be close enough for adjustment purposes?
Any help in finding the .75 ohm resistor, or tips for adjustments would be greatly appreciated.
Thanks in advance,
Jake
