12 volt charging system for T030

[RobnMiss]

Hello, My name is Rob. I own a 1952 T030 Harry Ferguson tractor. I want to convert it to 12 volt for starting reasons, turns over to slow. I am going to install a Delco single wire alternator. Have seen other tractors with a porcelain resistor installed down from the key switch to the solinoid. Was wondering if it takes a specific amount of voltage reduction and if does what amount? Will 12 volt with this resistor be to much for my starter? Any info would be appreciated. My tractor doesn"t have lights and to put 12 volt on there would be easier to put lights on.
Thanks,
Rob

 

[Jerry/MT]

My TO-30 has a 12V conversion and I'm using the original 6 V starter. I have no resistor in the starter circuit and I have no solenoid. If you have a solenoid, you don't have an OEM electrical system. If someone put a resistorin the solenoid circuit on a 12V conversion, they must have been trying to save a 6V solenoid.

The only reason you would use a resistor on a 6v to 12v conversion is if you were going to try to save the old 6V coil. The primary ignition circuit is generally limited to about 4amps max current. Most 6 V coils have about 1.5 ohms of resiatance so if you used them with a 12 V system, your primary current would be about 8 amps and your points would burn pretty quickly. So you have two choices, put in a 1.5 ohm resistor in series with the coil, or put in a real 12v coils like NAPA IC-14SB(~$15), which has the correct resistance built in. If it was me, I get the correct coil.

 

[GA Dave]

See if this may help. David.............

http://www.ytmag.com/articles/artint131.htm

 

[Anonymous-0]

no reason to change to 12 volt if it turns over slow you have something wrong cables to small, to small of battery CCA, bad contact switch [COMMON PROBLEM] they get burnt, or starter needs work.i have 5 to-20s and anyone will start at 25 below. do you push the clutch down when you try to start it if not do so even in neutral you are turning a lot of gears in the trans.and in the cold the oil is thick. save your money and fix the problem

 

[Hobo,NC]

What ever you do retain the original safety neutral switch,, a properly installed 12V conversion will Whoop a 6V system any day in cost and function,,, gofer it!

 

[TractormanNC]

Have the starter rebuilt for 12 volts. On most tractors, it doesn't matter that the starter is still6 volt. Around here there have been a number of cases of broken starter noses when tractor was converted to 12 V and nothing done to the starter.

 

[RobnMiss]

Thanks for the info. Appreciate it

 

[RobnMiss]

Thanks for the response. I appreciate it.

 

[RobnMiss]

Thanks for the information. It is appreciated.

 

[RobnMiss]

Thanks for the responses!