(800) 853-2651
SHOP NOW

f 20 magneato what kills the engine jd convert

A

Anonymous-0

Well-known Member
happy tugboat newyear finally go home in a few days. this 1938 has the common mag on it but no ground wire Does the manual spark advance just hold the points open ground out somehow?? yes I'll be buyin a m,anual at somepoint thanks to all
 
The 37 we had if the spark lever was all the way up it mearly pulled it out of time to kill it.We never retarded the spark when starting as the impluse on the mag took care of that. Bud.PS,I only know about one and nothing about others.Bud.
 
Inside the F-4 mag is a metal tang that grounds the points when the spark lever is fully retarded (up). It is internal and can be seen inside where the points are.
 
Rotating the "Points Cup" up is supposed to ground out the condensor. However if the wire that is supposed to ground out the condensor breaks, the best was to kill the engine is to choke it -- we did that for years on Dad;s F-20

When I rebuild a F-4 mag, I disconnect the wire to the "Points Cup" and connect a wire directly to the condensor; "Sneak" that wire out the back of the mag; and use a one-wire kill switch from a letter series tractor to kill the engine on my F-series tractors.
 
You must log in or register to reply here.

Similar threads

A
f 20 all fuel starting from scratch
Replies
8
Views
861
chuck41
C
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