If your 1 wire alt is a SI series Delco, you can run it one wire, or if you want a working gen light or lower rpm excite / charging, you can wire it as a 2 wire or stock 3 wire type. The 1 wire type will work equally well in all three applications.
If your old alternator is a Delco SI type and appears to be wired correctly, it may only need a field flash to get it going.
With the tractor running at about 1/2 rpm, momentarily touch a wire from the BAT stud to the regulator's #1 blade. This should get it charging if nothing else is wrong, and restore the residual field magnetism so it will excite automatically the next time you start it.
If a 1 wire alternator has not been used for many months, the residual field magnetism can fade and need the field flash to restore it.
I still like that old Delco SI series alternator. In my opinion, it is the cheapest, easiest to wire and the cheapest / easiest to repair of any alternator ever built.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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