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
Ford Tractors Discussion Forum
Order Ford 800 Parts Online

Re: Ford 8000 charging system

[Show Entire Topic]  

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

09-07-2013 12:11:17

Report to Moderator

Did you replace another alternator? If that tractor had the Motorola alternator, then it has an electronic voltage regulator located beneath the floor plate up under where the stairs attach. If this is the system you have, then a single wire self energizing alternator may be in conflict with the regulator if it is still in the circuit.

On my early 8000, it had the low amp output Lucas generator and a remote (mechanical) voltage regulator. We had to rearrange some of the wiring around the voltage regulator to allow the alternator to charge the battery.

If you are replacing a single wire self exciting alternator with another one, and the first one did charge the battery when it was working, then the tractor had been rewired to bypass the regulator. The wiring and its insulation is so old and brittle that anything could be the reason for failure. I think it is going to take some snooping with a voltmeter and a limited electrical load such as an old 12V auto headlight with jumper wires attached to the headlamp. I sugest this as I have been fooled by a good voltmeter reading when the wires have corroded or broken from vibration. There may be enough of a connection to give a voltmeter reading, but not enough good copper to carry any amps (thus the need for the headlight test load of about 5 amps).

Earlier this summer, I was fooled into spending $$ on a new battery for our 9000 tractor when in fact a good looking battery cable had internal corrosion that allowed correct voltmeter readings, but no power for starting or battery charging. These problems can be very frustrating!!

Good Luck!

Paul in MN

[Log in to Reply]   [No Email]
[Show Entire Topic]     [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