OK. So, I should see continuity between the return and both power legs, but I don't. I am wondering if the guy that had the machine before me had messed with it. Right now, all four posts (terminals) in the frame are utilized in the fashion as described previously. I get .5 ohms between posts #3 and #4, and then 1.7 ohms between posts #1 and #2. Here is a pic, if it will go through. This was PRIOR to teardown... I just ran the machine with nothing connected, and excited the field manually with twelve volts. I got around 50 volts out of both legs, one, #1, to the "return" #2, and the other, #3 to the #4. Then I reattached all the genset connections (minus the output leads) and read 90 volts (low speed) between #1 and #2, and in turn, #3 and number #4. Then I measured between #1 and #3 and got 90 volts as well (where I would have expected to see 180 volts at low speed), then between #2 and #4, and that read around 5 volts. I am wondering if the #4 (from the stator), previously considered "ground", and the #2 (from the stator), previously considered "return" aren't supposed to be on the same post (terminal), with the "ground" wire from the control box simply being screwed to the generator chassis. There IS a hole minus a screw that appears to be somewhat "cleaner" than the other parts of the casting, with the ground symbol cast right into the metal. To test this theory, it would be easy enough to attach a small automotive fuse of low value to the "return" #2 position and hook the ground #4 to the return to "simulate" the connection, and this should blow if it is NOT correct. Am I safe to assume that? IAW, it appears to me that only THREE of the terminals on the block were supposed to be used, and I am assuming this might be where the previous owner gave up his troubleshooting... Thanks SOOOO much for the guidance!!!!
