If the switch is wired in and the resistor is bad, I believe this test will measure the resistance back through the generator field coil (giving a false appearance of GOOD). If you disconnect the wire from the generator F to the switch and set the switch on L, you will get a good reading from the resistor. It should be 2.8 ohms.
By the way, you should back the third brush off a little to keep the charge under about 13 amps. As I racall, IH said to go no closer than 3.2 bars from the other brush.
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Today's Featured Article - Memories of an IH Super A When I was ? up to 10, I worked on my Papaw's farm in Greeneville, TN every summer. As I grew older (7), it was the thrill of my day to ride or drive on the tractor. My Papaw had a 1954 IH Super A that he bought to replace a Cub. My Papaw raised "baccer" (tobacco) and corn with the Super A, but the fondest memory was of the sawmill. He owned a small sawmill for sawing "baccer" sticks. The Super A was the powerplant. When I was old enough (7 or 8), I would get up early and be dressed to
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