I wish there were such a thing as a Fairbanks Morse H4 mag. (Maybe I have the only one!) No, this is an International H4, like the ones that go on Farmall Tractors. It is crazy how it fits on the F162. I wonder if long ago, the Int'l mag was somehow mounted to the FB mounting flange.
It gets crazier. According to all the serial numbers on the mag, and according to the big "L" stamped on the impulse drive, this is a CCW mag. (CW mags are stamped with an "R", for "right" as in the direction of movement.) But, it only turns clockwise, which is good, because the F162 turns clockwise. The Int'l magneto service manual does explain how to get a CCW mag to turn CW, so I guess this mag was reversed when it was made to fit onto the F162.
This is all crazy, but really, it shouldn't matter. The mag makes spark at high RPM's, and not at low RPM's. I'll check out the impulse, like you said. If all else fails, I'll just buy an FB mag.
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Today's Featured Article - The 9N Lives Again - by Tyler Neff. I often reminisce about the good old days of my youth when I visited my grandparents on their farm in Moorefield, West Virginia. I lived in Middletown, Maryland, which was about two and a half hrs away from the farm. During my summer vacations I would spend two weeks helping granddad Wilmer with his farming duties. Wilmer and his brother Weldon owned the �Neff� farm. Th
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