Alternators

[Gary Dotson]

The only thing that defines a 6v. alternator from 12v. is the voltage regulator. If you use a Delco 10si alternator, 6v. regulators are available. Josh (Deputy Jailer) can probably fix you up. Step down resisters are not a very good alternative, as voltage will vary wildly, depending on load. I would go with the 6v. alternator, or a full 12v. conversion.

[Bus Driver]

Gary is correct about the varying voltage output from resistors with varying loads. The really bad aspect is that the resistor wastes the unused "voltage" as heat. For higher amperage draws, the heat can be very significant.

[deputy jailer]

The only thing that defines a 6v. alternator from 12v. is the voltage regulator. If you use a Delco 10si alternator, 6v. regulators are available. Josh (Deputy Jailer) can probably fix you up. Step down resisters are not a very good alternative, as voltage will vary wildly, depending on load. I would go with the 6v. alternator, or a full 12v. conversion.

I have the 6 volt 10si ONE WIRE regulators in stock. I have built several fo rht ecubs along with cars and some other tractors. I also have the 12v regulators too. Be gald to help you out anyway that I can. I should have what you need. I also can buitl the CS121 alternators that are ONE WIre and they fit exact how the Hitachis do and in my opinion are better alternators but thats my opinion about the matter

[BOB K.]

At that point I might as well chage it over to 12V. I just thought I would put a 6V alt in and be done. It would be much cheaper and easier to get or convert a alt to 6V then to change everything to 12V. Also to go to 12V I would have to get a new wiper motor or get the converter.

[danovercash]

My local battery shop has or can modify Delco alt. for 6V. He is a "GoodGuys" and has done many for Model A's and tractors.
Hartsoe Battery Inc.
Kannapolis, NC
704 933 9024

[Daniel H.]

You can buy a 6V regulator to put in a Delco 10SI alternator. You can also convert them to positive ground.
Try these links, and search his site for "10SI"

http://stores.ebay.com/Triodiode-DC-Electric-And-Tractor


http://cgi.ebay.com/ebaymotors/Delco-10SI-Delco-Remy-Alternator-Regulator-6-Volt-SE_W0QQcmdZViewItemQQ_trksidZp1713Q2em153Q2el1262QQcategoryZ33577QQihZ015QQitemZ250197954053QQtcZphoto

[Eugene]

Eugene: Neither of those part #'s works for me at the jcwhitney web site. i tried them both with and withoutthe "MY".

Is it in a printed catalog that youare seeing them?

J.C. Whitney catalog.

Just called my favorite local auto parts store. On hand. Borg Warner part # VR1. Price $8.00 and change.

[Gary Dotson]

While converting an Alt. to 6v. is easy & inexpensive, converting to positive ground is not. It requires changing all the rectifiers. It's much easier to simply run it as Neg. ground.

I'm sure other alts. besides the 10si can be converted, the 10si is just the one I'm most familiar with. I too like the CS series alts.

[BOB K.]

Daniel H. The regulator you posted will not work as stated in the listing. I requires 2000 RPM to activate. I will talk to my local shop that rebuolds custom alt. and starter. I used them to rebuild on of my other cubs gen.

[Daniel H.]

Daniel H. The regulator you posted will not work as stated in the listing. I requires 2000 RPM to activate.

I have one of those regulators in a 10si on a Farmall 100 and it charges fine. The 2000 RPM is at the alternator shaft not the engine RPM. The alternator pulley is smaller than the crankshaft rate. You van also connect a wire from the ignition through a diode to excite the field, and then the RPMs drop way down to get it to charge.

Daniel