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Farmall & IHC Tractors Discussion Forum
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Farmall M 12 volt generator conversion wiring diag

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DAVE

08-14-2003 13:24:16




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I wanted to see if anyone has a 12 volt, positive ground, wiring diagram for my M. I have seem all sorts of configurations done, but this is not one of them. I have changed out the bulbs, stock generator converted to 12 volt, proper 12 volt +/-regulator, light switch (like the 400) changed. The biggest change that I can see is the light switch wiring. Everything else is similiar. System does not seem to be charging well. I figure I have one thing wrong on the light switch but do not know what. Any help??

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Dave in Virginia

08-15-2003 06:55:34




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 Re: Farmall M 12 volt generator conversion wiring in reply to DAVE, 08-14-2003 13:24:16  
Hi! I found this site helpful too,for one wire GM alternator conversion
http://www.autorewire.com/tech/charging/Delco10SInandd.html



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Gary_N_WV

08-15-2003 05:35:00




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 Re: Farmall M 12 volt generator conversion wiring in reply to DAVE, 08-14-2003 13:24:16  
Dave,
What makes you think it's not charging well?

If you have a good charging system and your battery has a good charge, your not going to see a "big" charging rate unless you have something demanding a large current ie:lights.



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steve

08-14-2003 18:43:19




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 Re: Farmall M 12 volt generator conversion wiring in reply to DAVE, 08-14-2003 13:24:16  
biggest problems found with poor charging generators are bad grounds on the voltage regulator. You voltage regulator has 3 or 4 terminals. The "G" and "F" go to the two terminals on the generator. The "B" goes to the battery, (normally the ampmeter). IF you have a "L" terminal this is normally routed to the light switch or key switch and is HOT when running. IF you dont have the "L", then the "B" terminal is taking care of both. On a 6 volt system you have the light switch controlling the "F" terminal and acting as current regulator. THe light switch on a 12 volt system is normally not used in this fashion as the current regulator is part of the voltage regulator box. Again, clean the wires and make sure the regulator is proplerly grounded to get good charge.

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Jailkeeper

08-14-2003 16:25:26




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 Re: Farmall M 12 volt generator conversion wiring in reply to DAVE, 08-14-2003 13:24:16  
Here's what you're looking for.



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Ben in KY

08-14-2003 14:26:24




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 Re: Farmall M 12 volt generator conversion wiring in reply to DAVE, 08-14-2003 13:24:16  
Has your generator been polarized ? Have you checked out the information under the research and info tab at the left on this page ?



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