Re: farmall 100 charging

Posted by Hugh MacKay on June 01, 2007 at 17:35:42 from (209.226.106.33):

In Reply to: farmall 100 charging posted by jeeper on June 01, 2007 at 16:07:23:

jeeper: Why not convert it to 6 volt alternator. all you need is a battery and an alternator. Then you don't need to change coil or lights. You'll buy that 6 volt alternator for very few dollars more than the 12 volt coil.

I have it on my Super A, has been working well close to 15 years now. When I bought it the auto electric shop sold me the GM Delco and changed the internal regulator to 6 volt, same price as had he sold it 12 volt. I hooked it 3 wire and at first I just had two wires I touched together to excite the alternator. I have since used the extra wire in the wiring harness of tractor, and I now excite the alternator with a push button switch at the dash. The battery I put in new when I did the 6 volt alternator conversion lasted 13 years. First time in my life, I ever had a battery go over 10 years.

I have 12 volt with alternators on my 130 and 140, if you come here some morning and the temp is -20F, with tractors all in my unheated shop, I guarentee the Super A will be going and out the door, with the other two, maybe even ahead of them. 130 is also quick, so it will be a toss up between those two with 140 coming last.

Nothing wrong with 6 volt, as long as it's wired right and wires kept clean and tight. I once started a 6 volt Farmall 300 at -40F, completely unassisted by any means. All 1939 to 1958 4 cylinder gas Farmalls, with properly maintained 6 volt system will start at temps as low as -40F.

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