Farm Equipment - Decent Regulator for a Model C?

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Decent Regulator for a Model C?

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Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=20367
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Topic: Decent Regulator for a Model C?

Posted By: briwayjones
Subject: Decent Regulator for a Model C?
Date Posted: 04 Nov 2010 at 6:56pm

What's is a and where can I get a good regulator for a Model C? It's still running 6 volts. Will a regulator from the local Tractor Supply Store be good enough or should I be looking for something else?

Replies:

Posted By: CTuckerNWIL
Date Posted: 04 Nov 2010 at 7:09pm

It depends on what has been done to the tractor in the last 50 years. The C didn't come with a regulator. It had a cut out relay which work with the 3 position switch for varying the rate of charge. If yours has been converted, I would guess a TS replacement would work. If it is the original cut out, you might have to do some wiring.

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Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF

Posted By: briwayjones
Date Posted: 04 Nov 2010 at 7:38pm

It's been converted to a regular regulator. The regulators at Tractor Supply are a direct replacement. I ask because I hear people mentioning solid state regulators and other regulators than the regular old ones you can get.

Posted By: Steve in NJ
Date Posted: 05 Nov 2010 at 11:22pm

What you want to do is get the number off of your Generator. Then take that number to your local Automotive store and get a regulator to match the Generator. In most cases, the basic run-of-the-mill VR does not match the Generator being used which equates to shorter VR life and charging problems. This is what I do with all my customer's who want to change over from a cutout to VR. The field circuit needs to be disconnected from the 3 pos. switch when converted. I have both Generator mounted and flush mount VR's if interested...
Steve@B&B

Posted By: briwayjones
Date Posted: 07 Nov 2010 at 4:42pm

When you match the regulator to the generator what are you matching besides voltage?

Posted By: BrettPhillips
Date Posted: 07 Nov 2010 at 5:24pm

Here is what I am planning to do with my regulators as they go bad: http://www.wiltonae.com/home/index.aspx - http://www.wiltonae.com/home/index.aspx

I have one on my C that is not long for this world. Maybe it will get a Christmas present...

Posted By: powertech84
Date Posted: 07 Nov 2010 at 5:37pm

Thanks for posting that link brett, i didn't know such a thing exsisted. The only thing that would worry me is that it must be far less forgiving.

Posted By: Gerald J.
Date Posted: 07 Nov 2010 at 5:38pm

You have to match the field wiring. Some generators have the field internally connected to the A termonal, e.g. the armature output, some (and most alternators) have the field connected to ground. In the first the regulator grounds the field terminal to make voltage, in the other the regulator applies battery voltage to the field terminal. Using the wrong regulator won't burn anything but your wallet, but it won't cause generation to be regulated.

Gerald J.

Posted By: briwayjones
Date Posted: 07 Nov 2010 at 8:06pm

Thanks for the input and the link. Does anyone have any information on determining the different field configurations so I can make sure the regulator we have is the proper one for the generator? And so I know what it is if I send it in for the solid-state conversion? For instance whether it's a hot field or grounded field. It sounds like the way it's hooked up internally should tell you?

Our C is 6volts, positive ground. Not running the factory type multi-position switch, just a toggle on-off switch.

Posted By: Bill Long
Date Posted: 07 Nov 2010 at 8:17pm

Pay close attention to what Steve NJ says. He is our resident expert on all things electrical.

Good Luck!

Bill long