wiring an alternator
Printed From: Unofficial Allis
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=18824
Printed Date: 07 Feb 2025 at 8:46am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: wiring an alternator
Posted By: DanNESD
Subject: wiring an alternator
Date Posted: 27 Sep 2010 at 9:36pm
| What is is easiest way to wire in an alternator on a D17 diesel. I have a 10si delco. I want to try to tap it into the factory harness. What do I do with the wires on the old regulator. I want to do this without destroying the original harness so I could change it back if when I decide to restore the tractor. |
Replies:
Posted By: DSeries4
Date Posted: 27 Sep 2010 at 9:46pm
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Don't bother with an alternator. Just get your generator rebuilt, no rewiring required. |
Posted By: DanNESD
Date Posted: 27 Sep 2010 at 9:55pm
| I was going with the alternator because of cost. I put a new regulator on my gas D17 and it cost almost $100. I already have the alternator so it wouldn't cost anything to put it on other than time. |
Posted By: powertech84
Date Posted: 27 Sep 2010 at 10:06pm
| There's a few minor differences between alternators, but the basic delco alternator needs two and a half wires. The battery wire from the generator goes to the post on the alt, and also you need a wire from this post to the S (starter) terminal on the alt. Then take the field wire from the gen and route it to the R terminal on the alt. Usually this works. I think this is right, but it is mnf night so... |
Posted By: DSeries4
Date Posted: 27 Sep 2010 at 10:09pm
| I've had my generators rebuilt in the past for $100 each. I bought a new voltage regulator last week for my D14 cost $50 at the local auto electric shop. My D14 had a alternator with a cobbled up wiring harness. So I am putting on a new wiring harness and generator to make it original again. |
Posted By: JoeO(CMO)
Date Posted: 28 Sep 2010 at 5:53am
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Let me think,,,,,generator has been on it for around 50 years. Why don't you just have it rebuilt, no mounting hassle, belt hassle and no changing back to original later. ------------- |
Posted By: TexasAllis
Date Posted: 28 Sep 2010 at 7:36am
Get rid of the generator you will be better off in the long run. I just got a quote on a one wire alt of $75 built to energize at any RPM I want. Depending on what is wrong with a generator minimum fix is $100.
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DanNESD wrote:Posted By: Nathan (SD)
Date Posted: 28 Sep 2010 at 8:52am
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Leave the wires off of the regulator and tape off the ends. I am not sure but maybe one of them energizes with the switch. You could use that one to energize the alt. |