(800) 853-2651
SHOP NOW

wiring

S

Sjw1109jr

New User
It my first time working on a 8n, the generator is not charging. I have to replace the radiator today. I have a 12v system in the barn, my question is how to wire it up. I have done it to my 9n with the 1 wire generator. The 8n generator has 3 wires, and not sure how to do it. Any help would be great.
Thanks
 
How do you know the generator is defective and not the v/r?

Is your 12v generator an A circuit or B circuit? The v/r needs to match the generator.
75 Tips
 
Sorry should of put a little more info. The guy I got the tractor from said it's bad, he tested it. The kit I have is a conversion to 12v with a alternator. So instead of getting rebuilt I was going to just swap it out but when I did it to my 9n that was only 1 wire. Just not sure how to swap it.
Thanks
 

Is the alt that you have a 3 wire or 1 wire alternator? Either way google search for ford wing diagrams, look for one by JMOR that covers what you have,
 
(quoted from post at 09:37:19 08/20/17) It has the 3 wire generator, and I was going to put the 1 wire alternator on it if I can.
Click to expand...

I did that to one of my 8n, only used the main large wire. the wire for the general field and ground are not needed.

for a cleaner installation you could get a new wiring harness, this site sells them.
 
Google 'wiring diagrams by JMOR'. Hint, you do not need the VR. There is one in the alternator.
 
So I decided to have the gen rebuilt,and got a new vr. The problem I'm having now is over charging, I disconnected ghetto field at the gen and vr made a jumper wire from the gen to vr still the same. When it comes to wiring I no good at that, any suggestions on what I should look at
 
(quoted from post at 08:11:14 08/26/17) So I decided to have the gen rebuilt,and got a new vr. The problem I'm having now is over charging, I disconnected ghetto field at the gen and vr made a jumper wire from the gen to vr still the same. When it comes to wiring I no good at that, any suggestions on what I should look at
Click to expand...
e sure that you don't have the Field and Ground wires crossed between gen & VR......that will result in max output.
 
I will check that shortly from what I looked at last night it is, I believe that the ground on the gen goes to the bolt holding the vr on but I might have to open the harness to double check.
 
So I just checked ground etc all look good. Started it know at idle it is just under 15 and at full it is bouncing from 15- just udder 30 is that normal reading, and why would the needle bounce.
Thanks
 
You must log in or register to reply here.

Similar threads

M
1939 9N Generator
2
Replies
25
Views
1K
Tim PloughNman Daley RIP
T
B
Wiring 6v generator on 1951 Ford 8N
Replies
2
Views
473
Tim PloughNman Daley RIP
T
D
Is solenoid correct or not? Can i wire it?
2 3
Replies
54
Views
2K
Jim.ME
J
S
8n Generator Question
Replies
7
Views
553
ScottsRover
S
B
8n /9n block swap
Replies
8
Views
509
Bruce(OR)
B
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