Welcome! Please use the navigational links on your left to explore our website.

Company Logo Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 
Marketplace
Classified Ads
Photo Ads
Tractor Parts

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

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

Research & Info
Articles
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
Glossary

Miscellaneous
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
Kountry Life
  
Allis Chalmers Discussion Forum
:

FM X4B11 Magneto on '39 B

Welcome Guest, Log in or Register
Author 
Glenn in PA

08-08-2003 04:58:18




Report to Moderator

Noticed the mag on my "new" tractor is a FMX4B11. This tractor is a 1939. Is it original or was it put on as a "fix"? Manuals call for a different FM mag, but it also notes "sub for" another Allis Part number that is discontinued. Anybody have an idea what this mag would normally be used on? I assume it will work, as it seems to have been on the tractor for a while....




[Log in to Reply]   [No Email]
Steve in N.J.

08-08-2003 19:30:40




Report to Moderator
 Re: FM X4B11 Magneto on '39 B in reply to Glenn in PA, 08-08-2003 04:58:18  
Glenn, Rod is right on the money there. The "X" series mags replaced the "J" as Rod mentioned. When Fairbanks released the "X" series all the "quirks that the "J" had were gone. One big revision with the "X" series is, when the cover is lifted off, the internal timing gears are both mounted to the point contact plate, where the "J" one of the timing gears came off with the cover. This became troublesome when it came time to re-assemble the mag and put the gears back in time. A couple other major improvements were magnetic rotor, & an epoxy coil. So, you actually have the best model of the bunch! If you ever need any parts or service for your F/M mag, drop us a line, we have parts & we service them too. Be more than happy to help ya out...
Steve/B&B Custom Circuits

[Log in to Reply]  [No Email]
Glenn in PA

08-09-2003 16:46:12




Report to Moderator
 Re: Re: FM X4B11 Magneto on '39 B in reply to Steve in N.J., 08-08-2003 19:30:40  
Steve,

I pass through Jersey on I-80 a couple times a month. If I get through earlier in the afternoon, I may stop by and say hi. Thanks for the info.

Glenn



[Log in to Reply]  [No Email]
Steve in N.J.

08-10-2003 19:15:17




Report to Moderator
 Re: Re: Re: FM X4B11 Magneto on '39 B in reply to Glenn in PA, 08-09-2003 16:46:12  
Glenn, Give us a "jingle" if you plan on stopping by sometime. Love to meet ya and give ya a tour of the shop & talk Orange! We're about 10 minutes off of I-80, via Rt-15 North to Oak Ridge. Steve/B&B Custom Circuits



[Log in to Reply]  [No Email]
Rod (NH)

08-08-2003 14:28:34




Report to Moderator
 Re: FM X4B11 Magneto on '39 B in reply to Glenn in PA, 08-08-2003 04:58:18  
Hi Glenn,

It's not original to that tractor. My understanding is that the FM-X4B is a newer version and a direct replacement for the FM-J4B. The FM-J4B was the original mag on the B, although I am advised that there were some that used a WICO. I have replaced the original FM-J4B on my '42B with an NOS FM-X4B. It works fine.

third party image Rod

[Log in to Reply]  [No Email]
Glenn in PA

08-09-2003 16:44:50




Report to Moderator
 Re: Re: FM X4B11 Magneto on '39 B in reply to Rod (NH), 08-08-2003 14:28:34  
Rod,

Thanks for the info. By the way, this machine also has a belly sickle mower as well. Thanks again for the manual and tips you gave me last year, this one is in better shape than the one I have. I may take you up on the offer you made last year for a tracing of that swathboard. Talk to you later.
Glenn



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

Hop to:


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. [ About Us ]

Home  |  Forums


Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership, ... [Read Article]

Latest Ad: Farmall three piece grille reforming tool set for A, B and C models, Repairs horizontal bars of grilles to original factory shape. Die also acts as a gauge for correct spacing between bars. Instructions and tips included. Buyer pays shipping. [More Ads]

Copyright © 1997-2020 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