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

Company Logo (800) 853-2651 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
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

Re: Allis B Magneto Timing

Hard starting

[Show Entire Topic]  

Welcome Guest, Log in or Register
Keith B(PA)

05-08-2003 16:19:52

Report to Moderator

Well I went out this evening and played with it a little and low and behold, the old gal started. It also seemed to run pretty well too. It had been missing under load going up hills.

Here's what I did. I took the magneto off the tractor and set number one to fire. I then played with the magneto to get it to about the place where the spring has just let go. (Figuring that was where it should be when fired) The I but the router so it was pointing to the fire lug and put the two pieces together, but the magneto back on the tractor. (And since everything meshed there, I figured I was at least close.) I then adjusted the magneto so the router was pointing directly to the fire lug, put everything back together and it fired right up.

(Geez I'm getting long winded)

The one problem I noticed was the ear on the bottom of the magneto is broken, so I'm guessing the fine tuning I did will eventually vibrate out of sync. So do you all think the is worth replacing the Mag or is there away just to replace the housing?

Thanks again


[Log in to Reply]   [No Email]
Duey (IA)

05-08-2003 20:08:51

Report to Moderator
 Re: Re: Allis B Magneto Timing - Hard starting in reply to Keith B(PA), 05-08-2003 16:19:52  
I sent you a couple of pictures of how to assemble the gears. Duey

[Log in to Reply]  [No Email]
Keith B(PA)

05-09-2003 06:06:37

Report to Moderator
 Re: Re: Re: Allis B Magneto Timing - Hard starting in reply to Duey (IA), 05-08-2003 20:08:51  
Thanks Duey, looking at those pictures, I'm missing some stuff. Like the label on the fiber gear. I may be ably to find the beveled tooth on the metal gear though.

It started up once last night (and ran pretty good) but when I went out later to see if it would start again, no dice. I'm guessing I have the timing off just a little bit. As my confidence is building, I'll play with it some more this evening.

Am I safe in guessing that the metal gear can really only be out 180 degrees if it is mounted on the tractor since that connection can only go one way? If that's the case, I may have the fiber gear a little off.

Thanks again for the photos.


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

05-08-2003 19:02:21

Report to Moderator
 Re: Re: Allis B Magneto Timing - Hard starting in reply to Keith B(PA), 05-08-2003 16:19:52  
Keith, Sounds like ya did pretty good there setting up the timing. I rebuild Fairbanks mags. Which side of the mag is broken? The side with the long adjusting slot? Depending on how much is broken out of the housing (if it's the adjusting side) you may be able to just snug it down with a flat washer to keep it in place. If you have the broken piece, you may be able to reinstall it with some JB Weld. The only way to renew the housing is completely gut the mag of all it's components and reassemble all the components in an undamaged housing. I can service it for you if you want to replace the housing, but if you still have the broken piece, you may be able to fix it yourself. Drop us a line if interested....
Steve/B&B Custom Circuits

[Log in to Reply]  [No Email]
Keith B(PA)

05-09-2003 06:11:23

Report to Moderator
 Re: Re: Re: Allis B Magneto Timing - Hard starting in reply to Steve in N.J., 05-08-2003 19:02:21  
Steve, it's the long adjusting slot on the bottom. It was repaired with JB weld in the past (Prior to me owning the tractor) so fixing it again in that manner may not work.

As far as getting it right, I got it close as it wouldn't start after I shut it off, but I'll give it another go this evening. I'm starting to have a real Love / Hate relationship with that orange tractor.

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

Hop to:

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 - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point ... [Read Article]

Latest Ad: 16 x 38 double bevel rims, sealed and painted 250 each [More Ads]

Copyright © 1997-2022 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