Three items. Purchase a starter draw meter, cheap at the auto store, they are pushed up against the battery cable and read to 600 amps. This meter will tell you if the tractor is getting enough current. Probably should draw about 350 to 400 amps cold. If it pegs the meter, the starter armature is dragging on the field poles (worn bushings) or shorted internally, or the engine is not turning easily. Does the engine run well when started (pull started or jumped)? If so I suspect the starter needs bushings. Bench testing is 20% effective in diagnosing a starter, as it has totally different side loads on the bearings. The cables also need to be at least 0 gauge. Anything smaller like automotive cables will be a show stopper. Best of luck, Jim
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Today's Featured Article - New Life for an Old Allis - by Tyler Woods. My friend Jon, has an old '39 Allis Chalmers B. He thought it a marginal tractor that had long since served its time. She smoked terribly and never had much power but he couldn't afford another so he was limping along with what he had. Jon's Allis has a small front loader and though it doesn't carry much, it serves his needs. It was the hard starting and low power that made him think it was time to replace the old girl. Jon called me to help him discover why his tractor wouldn't start
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