I replaced the connector with no change. Ended up taking the motor part way apart.
After pulling off the end plate with the brushes, I have 12-13 volts at the brushes with the switch on so everything up to the brushes appears to be in good shape. The armature is free and will move the pistons. (it has a gear that runs two pistons back and forth and I could rotate the armature back and forth)(I didn't try to spin it as it had some resistance). I put the juice to it and pushed on the pistons moving the armature and it didn't help.
The commutator or whatever where the brushes ride has 10 copper segments to it. All the segments showed continuity with each other with about 6 or 7 ohms resistance.
Any idea now what is wrong? I'm guessing an armature winding has a dead short although everything I can see from one end looks ok. Thanks.
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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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