Posted by Zachary Hoyt on December 20, 2011 at 16:16:21 from (184.12.79.87):
I have a Farmall H that I need to redo the electrical system on. It was converted to 12V by a previous owner and set up with a Delco 10SI alternator. A few months after I got it the alt quit so I replaced it. The new one lasted a few more months and then also quit. I need to rewire the tractor and will follow the wiring diagram on the Farmall forum, but I am wondering if I need a new alternator or if there is some sort of VR or fuse or other thing in or on the 10SI that I could replace that would be cheaper and make it work again. I do not know anything about alternators, I just hooked the new one up the same way the old one was. When I pulled the knob that connected the alt to the battery after startup it originally would show a charge, but then one day it started showing a 5 or 10 amp discharge when I pulled the knob, so I pushed it in again and left it that way for the past few months. The tractor has a mag so it has been running without a need for the alternator. Any help will be much appreciated. Zach
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