Blowing voltage regulators

Dodge6719 said
@67Dart273 This is actually the Standard motor products VR101 that is of the traditional mechanical type, it could be adjusted but I don't either think its the problem as I have blown 3 already.
I did the first test of the field current draw test where it says to measure voltage drop between battery and VR field terminal. This should not be more than 0,55v, I have 1,01v. Now then it says to go through the connections on the route to the battery and find where it changes significantly, that was the IGN terminal on the VR where it is 0,6v drop. If i i unplug the IGN terminal from the VR and measure directly from the IGN connector I have 0,1-0,2v drop. The voltage is almost correct if the VR is unplugged, is this normal?

I'm talking about actual current draw. The field is simply a wound magnet, and if something causes a couple of turns to be shorted, this could relegate the field magnet to a few percent or a lot of percent "lesser" of it's original performance, and worse, the shorted turns increase the DC current draw. Seems to me somewhere between 4 and 6A max.

ONLY OTHER thought I have on blowing up VRs is maybe a short / intermittent short somewhere, either the green field wire or something wrong in the alternator brushes/ field, and that very well could be. At the price of a VR might be helpful to try another alternator...........and this coming from a guy who doesn't like to "throw parts" at a problem.