(800) 853-2651
SHOP NOW

Location of Ballast Resistor

U

Underwood

New User
Sorry guys but I have to ask one more question about an M converted from 6V to 12V. The wiring diagrams show the ballast resistor ahead of both the coil and distributor after a conversion but I am assuming that is with the original 6V coil.
My M has a 12V coil. Would you put the resistor ahead of both coil and dist. as shown or between the coil and dist?
 
Ballast resister belongs in the wire from the ignition switch to the coil. I.E. you put it after the switch and before the coil. Now if its a true 12 volt coil that say no resister needed then you don't want or need it
Hobby farm
 

I don't know why or how they can call it a "12V" coil and say "ballast resistor REQURIED" in the same breath... The Super C I just bought has one of those. It's not a 12V coil if it needs a ballast resistor.
 
The resistor will do its job wired either way you mention. Which you choose boils down which is handiest for you to wire!
 
Some 12 volt coils have internal resistors, some don't. My 460 had a 12 volt coil AND a resistor. I replaced it with a 12 volt coil with an internal resistor. John T can explain all this, not me.
 
You must log in or register to reply here.

Similar threads

J
JMOR, A resistor question.
2
Replies
35
Views
1K
JMOR
J
T
Ohms rating of Ballast Resister
Replies
5
Views
359
gene bender
G
R
49 8n ignition resistor burning up
2
Replies
33
Views
983
RRSPRINGS
R
X
F40 no spark. No go.
Replies
16
Views
306
xfratboy
X
Geo-TH,In
Why mess around with a ballast resistor when you can ?
2
Replies
25
Views
1K
Geo-TH,In
Geo-TH,In
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