Re: Should I cange over to 12 volt?

Posted by Hugh MacKay on November 06, 2003 at 16:51:53 from (64.228.12.66):

In Reply to: Should I cange over to 12 volt? posted by Garry on November 06, 2003 at 11:27:13:

Garry: I have three tractors I converted to alternator charging; a Super A, 130 and a 140. The Super A is 6 volt. The other two are 12 volt. The Super A and 130 were done 10 plus years ago. The Super A has the battery and alternator that I put in at that time and yes still startng well. The 130 is on it's 3rd battery and 2nd alternator. The 140 was just done last spring and the only reason the 130 and 140 are 12 volt, is to run a couple of electric motors I have. My Super A will start quicker and better on a cold Canadian winter morning than the 130 will. This summer I have been quite busy so didn't have much time to use tractors. Two weeks ago I realized it had been 2 months since I had any of them going. Super A took about 3 turns of starter and it was going. The other two took a fair bit of cranking on starter.

The beauty of the 6 volt alternator is you remove the generator and regulator, and add a GM Delco with built in regulator. Change the tractor to negative ground. Since you have one wire in harness not needed you can use that one to excite alternator. I use a starter type push button switch at dash for this. For a pulley on the alternator I use the double pulley from a V8 Olds or Buick from the 70s. You can use either pulley thus giving a bit more leaway on alternator mounting. If you have any questions my e mail is available. I can give you a source for 6 volt alternator. As others have said big wires are still very important. 1 guage, I find the best place to get them is heavy truck repair shops, they can also supply soldered on ends. It is what they use on big diesels.

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