Yesterday's Tractor Co. Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
Classified Ads
Photo Ads
Tractor Parts

Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs

Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Classic Trucks
Kountry Life
Tractor Talk Discussion Forum


Welcome Guest, Log in or Register
Author  [Modern View]

09-12-2017 06:58:54

Report to Moderator

I just looked at the illustration of the delco 10si alternator. Pretty straight foreward.Drew a picture of it for future reference,too. But I am wondering?Where is the voltage regulator? Or does this alternator not use a regulator?Im, familiar with the one wire types,but not this one.Can someone explain? Thanks,Steve

[Log in to Reply]   [No Email]

09-12-2017 19:04:27

Report to Moderator
 Re: Altwrnators in reply to DeltaRed, 09-12-2017 06:58:54  
Regulator is last part out & 1st part in when you are working on them.

[Log in to Reply]  [No Email]

09-12-2017 11:45:39

Report to Moderator
 Re: Altwrnators in reply to DeltaRed, 09-12-2017 06:58:54  
Quoting Removed, click Modern View to seeActually, even the GM/Delco 3-wire VR inside the 10-SI drains that battery 24/7.............but it is so small a current that it will take a VERY long time to discharge it. I have measured aftermarket 1-wire units with as much as 2 1/2 times the original equipment drains. Still a long time to discharge a battery.

[Log in to Reply]  [No Email]
D beatty

09-12-2017 07:26:15

Report to Moderator
 Re: Altwrnators in reply to DeltaRed, 09-12-2017 06:58:54  

Here's a photo of diagram that I found. I have a 6 volt Delco 10si alternator on My Farmall B and had wire it different than what is in the photo because it has a magneto.Mine the regulator is in alternator.

[Log in to Reply]  [No Email]

09-12-2017 10:42:18

Report to Moderator
 Re: Altwrnators in reply to D beatty, 09-12-2017 07:26:15  
There appears to me to be an error in the diagram. I see the + on volt meter being connected to the always hot battery/alternator/switch supply connection at the start solenoid. This will cause volt meter to run continually.

Voltmeter + connection should be moved to switched output at either switch or + on ignition coil so voltmeter will turn off with ignition switch.

[Log in to Reply]  [No Email]

09-12-2017 07:18:49

Report to Moderator
 Re: Altwrnators in reply to DeltaRed, 09-12-2017 06:58:54  
Quoting Removed, click Modern View to seescrews into rear housing in exactly same position as does the one wire reg.

[Log in to Reply]  [No Email]

09-12-2017 07:23:16

Report to Moderator
 Re: Altwrnators in reply to JMOR, 09-12-2017 07:18:49  
So no external regulator is required?

[Log in to Reply]  [No Email]
Jon Hagen

09-12-2017 08:55:18

Report to Moderator
 Re: Altwrnators in reply to DeltaRed, 09-12-2017 07:23:16  
No external regulator required, the regulator (1 or 3 wire)is built into the alternator rear frame. Also the one wire alternator will not discharge your battery as some falsely claim. The one wire components have no connection to the battery so will no more discharge your battery than will the 3 wire versions.

[Log in to Reply]  [No Email]
Used red mn

09-12-2017 10:20:21

Report to Moderator
 Re: Altwrnators in reply to Jon Hagen, 09-12-2017 08:55:18  
The component that the 2 wires plug into on the side of the "alternator" is the internal regulator. See link.

[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:

Fast Shipping!  Most of our stocked parts ship within 24 hours (M-Th). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a company you can trust and have generous return policies. Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ About Us ]

Home  |  Forums

Copyright © 1997-2018 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters