Installing an alternator on an Farmall A doesn't require any non-reversable modifications. The greatest advantage of an alternator is reliable recharging of the battery. These tractors were designed to work all day long which allowed the generator system plenty of time to recharge the battery. If you start and restart with only short run times, the battery will not get recharged. If a battery is not kept fully charged, it will sulfate and fail. An alternator will provide for a quick recharge for short run times. An alternator can provide 30-40 amps recharge if necessary while the generator would be more in the 6-8 amp range. I use a basic 3-wire Delco 10SI. If you go with a 1-wire, it needs to have a special low turn-on regulator due to the low RPM. With the 3-wire, the ignition switch turns on the regulator. Additionally, if I have a failure, the basic Delco 10SI is readily available at the auto parts store. K-Mo
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Today's Featured Article - Timing Your Magneto Ignition Tractor - by Chris Pratt. If you have done major engine work or restored your tractor, chances are you removed the magneto and spark plug wires and eventually reached the point where you had to put it all back together and make it run. On our first cosmetic restoration, not having a manual, we carefully marked the wires, taped the magneto in the position it came off, and were careful not to turn the engine over while we had these components off. We thought we could get by with this since the engine ran perfectly and would not need any internal work. After the cleanup and painting was done, we began reassembly and finally came to t
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