Farmall H

[willy44]

I did not know that you could run 12 volt to the starter know that you mention it I think it could work. The only problem I could foresee is 12 volt might make the starter run to fast or too hot, now this is just my thoughts I am by no means an expert. will 12 volt mess with the electrical system as far as the ignition system goes distributor switches or any thing else, the lights make sense since they will be blown out by 12 volt. I just like to be cautious with these old tractors that have been siting, never know what the have in store for you, especially when you're not the original owner. How would you jump it, like jumping a truck just positive to positive and negative to negative or is there some other procedure for jumping 12 volt with volt?

 

[rockarosa]

I had an old 1952 Farmall H. Rather than hand crank it when the 6 volt battery was dead, I would get the portable 12 volt jumper box and jump start it. Never had a problem. Finally sold it and bought a New Holland.

 

[whitepine2]

I would change it over to 12 volt and disconnect the lights also change the distributer to an electric
type. Did this to my M and have been running it this way for 30 some years with the 6 volt starter.
change out the generator with an alternator a small one like a Toyota should fit under the hood just fine and never look back. Good Luck

 

[Diamondpilot]

We jump start old 6 volt Ford tractors all the time from the truck. We even converted a few with a 12 volt battery, coil, light bulbs, and a single wire GM 12si alternator.

Biggest issue is going to negative ground prom positive. The starter spins and handles the extra power like a champ!


Chris

 

[tessiers]

If you have help I would pull it to start it, those starters were not made to whirl over on 12v, they will work but they will also overheat faster. If it has a magneto it doesn't need a battery or generator, just needs to turn. If it is a coil ignition it will need power from somewhere, either generator or battery. If it has a 6v coil and you put 12v to it, it will work for a while but burn out, you either need a resistor or a 12v coil to run it long term. As stated the 12v boost will not hurt much except lights but if you want to convert there may be other things to consider. I find if you have an engine that has not been started in a while just the heat produced from compression will help release the rings, so I like to pull them to get them turning, plus its way easier on the starter.

Just my 2 cents, maybe worth what you gave for it.

 

[farm boy00]

With 12v battery to a 6v system. What you do is
Switch wires going to battery. Pos.(battery)-neg. (tractor)
Neg.(battery)-pos.(tractor)
Been running my allis like that all summer