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Discussion Forum

WD 6 to 12 v change ?'s

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05-22-2001 12:24:39

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In order to convert my WD from a 6 volt to 12 volt system my local contacts tell me I can purchase an alternator with a non-feed back pig tail (that won't drain the battery) for under $50. Change to a 12 volt battery, keep the six volt starter and install a resistor on the lead wire to the coil. Is there something I am missing or something here that you may disagree with? How hard is it to install, do the mounting brackets work and is there space available for the alternator?

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Dave Grubb

05-23-2001 06:20:25

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 Re: WD 6 to 12 v change ?'s in reply to rw, 05-22-2001 12:24:39  
You will definitely need to put a resistor inline for the coil or better yet purcahse a coil with an internal resistor. You will also need to replace the condenser for the points with a 12 volt unit. The condenser will fail after a period of time. This site has some good archive articles on this.

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05-22-2001 19:34:36

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 Re: WD 6 to 12 v change ?'s in reply to rw, 05-22-2001 12:24:39  
You basically have the right story. The alternator is probably a "single wire" if you are getting the one without the pigtale (external voltage exitation). The one wire is simple design, a heavy wire like 8 gauge routed directly to the positive battery terminal. Yea the 6 volt starter will be fine and changing from positive gound to negative ground on the tractor is o.k. You may need a resistor in the coil line to drop voltage back to 6 volts. Any light will have to be replaced with 12 volt bulbs. Basically you got it. Biggest problem is building a bracket to mount the alternator and tighten the belt.

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05-22-2001 16:52:12

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 Re: WD 6 to 12 v change ?'s in reply to rw, 05-22-2001 12:24:39  
RW, I E-Mailed you a wire digram for the 6 to 12 volt conversion. Duey

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