The 450 diesels did use 3 different coil setups. One was 12 volt coil, one was 6 volt coil with external resistor and then they dropped the resistor and still used a 6 volt coil. Put more new coils on those diesels than all the gasoline tractors combined. They went to the straight shaft with no advance and made a hard starting tractor even harder so they left off the resistor and used the 6 volt coil alone. Going through that cut off switch on the manifold they didn't use a bypass wire coming from starter solenoid to go around the resistor for starting. That is the way I remember it anyway.
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Today's Featured Article - When Push Comes to Shove - by Dave Patterson. When I was a “kid” (still am to a deree) about two I guess, my parents couldn’t find me one day. They were horrified (we lived by the railroad), my mother thought the worst: "He’s been run over by a train, he’s gone forever!" Where did they find me? Perched up on the seat of the tractor. I’d probably plowed about 3000 acres (in my head anyway) by the time they found me. This is where my love for tractors started and has only gotten worse in my tender 50 yrs on this “green planet”. I’m par
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