Converting a Vintage Tractor From 6v to 12v
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- Опубліковано 7 лют 2025
- Join me for the newest installment of Tractor Roy where I show my method of converting a vintage tractor from 6v to 12v.
Parts Required
12v battery
12v internally resisted coil- EBC1487
Alternator- 7127-1wa
Battery- 12v Group size 26r-2
Ford 8N Alternator bracket- FDS1099 from Steiner
This method works with most 6v factory original tractors.
Thanks for watching!
I see you have some good supervision watching your work 😊
I had an old Chevy PU. I installed a 0-100 ammeter in series with the 135a alternator output lead. I installed a shunt that would cause the ammeter to read 100 when the alternator is putting out 135 amps (that would be 100% of the alternator's maximum output). That would tell me that the alternator is outputing current to the battery and load (lights, ignition and other electrical accessories). I also installed a voltmeter to measure the battery voltage to monitor the battery's state of charge. If the ammeter read 0 while driving, I'd know that the alternator failed and I'd be running on battery power. Yes, I could have bought a 150-0-150 ammeter but I used what I had on hand.
Wow what did you have that needed that big of an alternator? I’m all for using what’s laying around. Whatever works!
@@Tractor-Roy That's a common size for full sized cars and trucks with 8-cyl engines. It was an upgrade to my 350 engine.
Yeah 2 of my 350s are 78a and the other is 63a. Too used to old stuff that doesn’t need much to run
Do you change starter out from 6 volt to 12voilt
Nope. Like any starter, you just need to make sure you don’t crank it forever and give it a good break to cool down between starting attempts. Since the voltage doubles, the speed will double. So if your starter spins 200rpm @6v it will spin 400rpm @12v. I’ve got a Farmall C and an Allis Chalmers WD45 that barely need the starter bumped because of how much faster it spins
Do you need to replace the 6v solenoid with a 12v?
Probably wouldn’t be a bad idea. However, it still works with the 6v solenoid and for as long as it’s engaged it’ll most likely last a long time