(800) 853-2651
SHOP NOW

comverting to 12volt

If its a 1 wire alternator, Just run 1 wire from the alt back to the main hot terminal on the Amp guage, trace out existing wire harness, and just use the one that's already connected.
 
go to left and scroll down to Ford 8n/ 9n open up and then scroll down to 12 volt conversion.
 
go to left and scroll down to Ford 8n/ 9n open up and then scroll down to 12 volt conversion.
 
One wire alternator do not work well on slow speed engines like tractors. It is best to use the three wire alternator and wire the way done by diagrams on the net. I use an old Chilton's Manuel I have that cover the years the GM 10si were used. The only thing different I do is use a diode in place of the resistor in the diagram.

Kent
 
One tip if you do use a "1 wire" alternator.
Get a small one, 37 amp is the little one, and is far more than an early Ford tractor will ever need and will start charging at much lower rpm than a 61 or 72 amp.
Also far less chance of burning up the stock "bat" wire in the original harness with a lower amp output alternator. It is worth getting the very small alternator pulley made for early Ford alternator conversions to get the alternator charging at lower rpm.
 
You must log in or register to reply here.

Similar threads

grandpa Love
Alternator issues
Replies
14
Views
709
Rich'sToys
R
T
distributor ignitions
Replies
7
Views
484
olddavid
olddavid
J
JMOR, A resistor question.
2
Replies
35
Views
1K
JMOR
J
JMcBrayer
1962 Farmall 140 12v or 6v?
2
Replies
30
Views
1K
37chief
3
C
Magneto kill switch with negative ground
Replies
13
Views
481
rustred
rustred
Tractor Parts Tractor Manuals

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Copyright © 1997-2024 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
Website Accessibility Policy

Back
Top