6volt to 12 volt conversion

[caseydog]

I just purchased a VAI with a case belly mower. I noticed that it has a 12 volt battery and 12 volt coil but they disconnected the wires from the generator. It starts and runs fine but I have to charge the battery. Does it hurt to run it this way? To complete the conversion to 12 volt is all I have to do is put in a 12 volt alternator?

thanks for all advice

 

[old]

Only thing it may hurt over as long period of time is the battery. I have a ford tractor that I ran that way for years due to a bad alternator on it and I did not want to spend the $$ to fix it. As for the real fix yes a simple Delco 10si off of say a 1980 Chevy pickup no power any thing no AC will work just fine. Then all you need it how to wire it up if you do not know how. Just ask if you need that info

 

[pkreuter]

On my Case D I had a local Amish shop rewind the generator for 12 volts.
Paul K.

 

[L.Fure]

(quoted from post at 17:39:35 10/05/17) On my Case D I had a local Amish shop rewind the generator for 12 volts.
Paul K.

pkreuter,

Which Reuter clan do you belong to, Wisconsin?

 

[L.Fure]

(quoted from post at 15:32:03 10/05/17) I just purchased a VAI with a case belly mower. I noticed that it has a 12 volt battery and 12 volt coil but they disconnected the wires from the generator. It starts and runs fine but I have to charge the battery. Does it hurt to run it this way? To complete the conversion to 12 volt is all I have to do is put in a 12 volt alternator?

thanks for all advice

They sell a single wire, internal regulator, for 12v conversion on this site.

 

[rvirgil_KS]

Alternator will need to be negative ground. With negative ground -- coil wire goes to side of distributor and ammeter should swing negative with lights/ignition on, engine not running.

 

[old]

Problem is with a 1 wire alternator many need high RPM to self excite which can cause odd problems plus the cost is 2 time more then a common Chevy 10SI alternaotr

 

[pkreuter]

I don't belong to any but there are a lot of them around here in Elkhart County, Indiana. Lot of good craftsmen.
Paul K.

 

[chuck machinist]

For $58 and some change, you can go to Napa and they'll give you a single pole alternator run the red lead to the positive battery post. Best $58 I spent.CM That's after the court charge

 

[Don Rudolph]

Court charge? Any jail time? LOL Don

 

[old]

Problem with the 1 wire is lack of warranty and also the fact it can take high RPM to self excite. I'll stick with my 3 wire set ups and save $$ and also have a life time warranty. Last 1 wire I got said in the paper work that is needed 2000RPM to start charging and that is hard on a 1500RPM tractor engine

 

[L.Fure]

(quoted from post at 05:40:29 10/06/17) Problem with the 1 wire is lack of warranty and also the fact it can take high RPM to self excite. I'll stick with my 3 wire set ups and save $$ and also have a life time warranty. Last 1 wire I got said in the paper work that is needed 2000RPM to start charging and that is hard on a 1500RPM tractor engine

You have me confused. Why wouldn't a single wire alternator have a warranty? If it is purchased as a new item it should have some sort of warranty. I was always told that an alternator needed a small amount of DC voltage to excite the alternator to start it to begin working. I never heard of an alternator self exciting. As for the 2000rpm, this is why the pulley on the tractor engine is larger than the than the pulley on the alternator. This arrangement spins the alternator at a higher speed than what the engine is turning. The link below can be used to calculate the speed of a driven pulley by the size and speed of the pulley it's being driven by.

https://www.blocklayer.com/pulley-belteng.aspx

 

[old]

The reason a 1 wire does not have a life time warranty is because they are an after market modification so the warranty is 1 year. Either way the 1 wire is no where near as good as the 3 wire because it does not work as well. I do lots of 12 conversions and the ones I have done with 1 wires do not last near as long as the 3 wire ones do

 

[55 50 Ron]

"a small amount of DC voltage to excite the alternator to start it to begin working" is provided each time you turn on the tractor ignition switch or key.

 

[Brokengun]

I didnt know you could rewind a 6 volt generator to 12 Volt. Interesting

 

[brutus49DC]

I use the 10si alternators with the two wire set up as Old mentioned. You need to have a diode in the switched wire to prevent back feeding, NAPA stores have an alternator pigtail with the diode or you can crimp one into the wire coming from the switch. Generators are a money pit, especially Autolites. That's why my 400 is going to get an alt. shortly as I use it for augering corn.

 

[chuck machinist]

Several barley pops or consumed on my response to this post hee hee

 

[brutus49DC]

A single wire alt does not have a switched power wire to excite the regulator. That's why some rpms are needed to self excite it.