If you want to convert for more cranking power, in my opinion it's not necessary. The same 6 Volt battery used on the Cub is used on most other IH tractors through the H. The weakest part of the system is the charging system. To convert to 12 volt you will need to change your light bulbs and install a coil resistor such as the RU4. You will change from a "+" ground system to a "-" ground. This means you will need to swap the wires on the coil. Connect the ignition in series with the RU4 resistor to the "+" coil terminal and the distributor to the "-" terminal. If you have a magneto, no changes need to be made to the ignition system. If you have the bayonet type 1133 bulbs replacement them with 1143 bulbs. For reliable charging install a internally regulated alternator such as the Delco 10SI. If you would choose a 1-wire alternator, get one with a low turn-on regulator. K-Mo
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Today's Featured Article - Women and Tractors - Tractor Engine Repair - by Teri Burkholder. One of the great things about working on a tractor engine with your other half is that you know what he is thinking of at all times and can anticipate his every move and his next thought of what he will do. With Ben, anyway, I can tell! He'll be busy working and I’m handing him tools and he says, "give me that..." and I’ve already got it in his hand or "hand me that....."and I’ve got the portable light right where he needed it placed to see. "Run in the house and get me a...."as I open th
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