Has anyone here ever converted a magneto equipped tractor over to 12V with a one wire alternator? Can this be done with success? I was looking at those new Powergens, which are alternators that look like generators externally, to give you that original look. Was thinking this would be a nice way to go if possible.
- Thread starter Heath72
- Start date
Has anyone here ever converted a magneto equipped tractor over to 12V with a one wire alternator? Can this be done with success? I was looking at those new Powergens, which are alternators that look like generators externally, to give you that original look. Was thinking this would be a nice way to go if possible.
jennifer408
Well-known Member
where was ya looking at them at ? i want to look at them too. im getting ready to convert my massey.
The only problem with 1 wire alternators is that it takes higher rpm than some tractors will run for charging to start. There is a special regulator for the Delco standard alternators which overcomes this difficulty but it requires deletion of the diode trio and adding a special regulator and internal wiring to energize the rotor. Cost would be the advantage to a standard 10SI Delco with the D10AC regulator.
Under no circumstances hook anything other than a grounding switch to the Mag or it will be destroyed.
Heath,
I converted my 1946 Allis Chalmers WC over in 1999.
Has a mag. I put on a standard Delco 10si. Installed the regulator myself. 15 minute job. Bolted it in when the original generator sat. Added a few washers on the main bolt to get the pulleys aligned. Done. That simple. No problems in 15 years.
I run two batteries, as I have mounted a 7 1/2 foot Western plow on the front.
You may have to change the pulley depending on your belt size. You can order a one-wire all ready to go from Summit or Jegs racing.
Rick
I converted my 1946 Allis Chalmers WC over in 1999.
Has a mag. I put on a standard Delco 10si. Installed the regulator myself. 15 minute job. Bolted it in when the original generator sat. Added a few washers on the main bolt to get the pulleys aligned. Done. That simple. No problems in 15 years.
I run two batteries, as I have mounted a 7 1/2 foot Western plow on the front.
You may have to change the pulley depending on your belt size. You can order a one-wire all ready to go from Summit or Jegs racing.
Rick
Zachary Hoyt
Well-known Member
I had a Farmall H with a Delco 10SI set up for 3 wire and a mag. It worked fine. I have never used a 1 wire system as I have heard that the 3 wire are better in a few ways and are not that hard to wire.
Zach
Zach
Super Trucker
Member
I have them on all my electric start tractors. And replace all gens with alts as needed like the others have said 15 min job.
TractormanNC
Member
Use a THREE WIRE Delco 10SI with an oil pressure switch to excite the alt. Massey did it for years with the 10DN alts.
Beware also that a 12 volt battery on a 6 volt starter may spin it so fast that the impulse coupling disengages resulting in a weak spark and hard starting. BTDT.
Beware also that a 12 volt battery on a 6 volt starter may spin it so fast that the impulse coupling disengages resulting in a weak spark and hard starting. BTDT.
The Mag produces its own energy and is not depending upon or connected to the battery regardless if 6 or 12 volts, Pos or Neg Ground, or charged by a Generator or an Alternator. The cheapest and very easy and reliable alternator set up is to use a 3 wire Delco 10 SI Family which requires Negative ground but that's no big deal.
John T
John T
jennifer408
Well-known Member
thank you.
Steve@Advance
Well-known Member
If you just want to get rid of the generator, the Powergens are avaliable in 6v. Keep everything else original.
teddy52food
Well-known Member
If the mag is spinning fast enough to kick out the impulse, it will have enough spark to start it but it will be advanced.
J.Wondergem
Well-known Member
- Location
- Rockford, Mi.
gene bender
Well-known Member
Magneto doesnt care what the batt volts are it makes it own spark doesent need batt voltage go ahead and cconvert just leave the mag alone. The wire from the mag is a ground wire to kill the spark.
Anonymous-0
Well-known Member
If you want to convert to 12V you can just install a 1 wire 12 V alternator. Just connect the one wire to the ammeter then to the battery. I put a 2" pully on the LA to spin it a little faster. I also had the alternator converted to 6v, has been trouble free , cost $75 for the conversion to a Delco alt. from a Chevy truck.
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