(800) 853-2651
SHOP NOW

Impulse lugs on B magneto

R

Richard G.

Well-known Member
Late model JD B at State Ag Museum would not fire on left side when cranking.
Took Wico X mag off and the weighted lug on one side would not stick out to catch.
Sprayed it with PB Blaster and it would work some of the time using pliers while it was in my vise.
Got it to crank when reinstalled but it does not always do so.
Anything else I can do to make the weighted lug work better?
Richard in NW SC
 
Just had a Wico C fail same way. Look at the stop plate where the arm hits and is supposed to hold there until the cup forces the arm off it allowing it to spin. Mine was worn enough to hold the arm for a little bit but would slide off before being fully wound against the spring. Mig welded and remade the contour. Just put it back on the tractor this afternoon and got it started. I have used this B for mowing for the last 12 years, always was an easy starter, then this summer, just no start. See if that is your problem. Probably the reason lots of mags get trashed just a simple fix.
 
You must log in or register to reply here.

Similar threads

A
1940 John Deere B Timing+
2
Replies
22
Views
2K
armbru37
A
R
Allis B radiator question
Replies
2
Views
462
Richard G.
R
B
timing an electric start (1950) B
Replies
5
Views
820
James Howell
J
A
1950 John Deere B idles well, stalls under load or fast
Replies
15
Views
3K
J.Wondergem
J.Wondergem
A
Update on Farmall C with gear shifter not moving into 3r
Replies
6
Views
532
Steve@Advance
S
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