Sun 9 Oct 2011
As you loosen this jam nut, make sure the governor shaft with the allen socket in it, does not rotate. Once you carefully have removed the jam nut. Screw the governor shaft all of the way in until it bottoms, counting the number of turns as you go. Write that down!!!
Look very carefully how the governor is assembled. Take pictures here. That black tube slides onto this end of the governor shaft, then sits on top of a thrust washer. The thrust washer is blue in this pic, but it’s just polished steel. The thrust washer fits into the groove on all 4 feet. The weights are usually folded inward. I moved them out to take the pic.
Than take everything out of the governor and place it somewhere clean and safe. Notice the 2 timing marks on the perimeter of the governor housing at 9:00 and 3:00. I could find no reference on the web to see if they were required to be aligned with something. The mating gear did not have any marks on it either.