6 volt to 12 volt conversion: 1954 NAA

Joe S. Davis · Aug 14, 2013

I would like to convert my 6 volt system to a 12
volt system. I"ve been told to purchase a single
wire conversion kit to do this. Would appreciate
any advice before I proceed.

ericlb · Aug 14, 2013

it will work if you dont mind reving the engine way up each time to excite the alternator and make it charge , 1 wires work fine on a hot rod with a big v-8 engine, not so fine on a low rpm tractor engine, and that alternator is expensive too get a simple 3 wire gm alternator from the '70's and early 80's, there much cheaper and wiring it up is easy and simple using a 194 lite bulb, i did it,and if i can do it anybody can

Hiddepines · Aug 14, 2013

There are several options. It is easy to do. I have an 860 and an 871 both converted to 12 volt. One with a GM 3 wire alternator wired as a one wire, and one with a Ford 3G alternator. Both were simple to install with minimal if any modification required. My advice is to purchase a lifetime warranty alternator if you are planning on keeping the tractor. Would not think twice about converting to 12 volt with an internal voltage regulator.

old · Aug 14, 2013

Many problems can be had wit ha 1 wire set up. Need high RPM to excite. Then there can be the problem with dead batteries if you do not use your tractor a lot due to a slow drain by the alternator. Then there is the cost. A 1 wire just by it self will cost you $80 or so but a 3 wire can be had with a life time warranty for $45 plus $10 core and the other stuff you need will cost you less then $40

souNdguy · Aug 14, 2013

personally.. i'd get a 3 wire. however both, in the end, will work.

get a 12v coil like a napa ic14sn and ditch the 6v coil and forget a resistor.

get 12v headlamps.. etc. change the fuse in the lamp switch.. etc.

TimInd · Aug 15, 2013

I converted using a 12v. coil and the original ballast on my 2n. I used the one wire alternator. It does require reving the engine a little at first to get it to start charging, but after that, it will charge if needed at any rpm. Sat all winter and did not drain the battery. Started right up in the spring. I think the most important thing is to use the 12v coil, and ditch the extra resister.

6 volt to 12 volt conversion: 1954 NAA

Joe S. Davis

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ericlb

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Hiddepines

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old

Well-known Member

souNdguy

Well-known Member

TimInd

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