TRACTOR PARTS Allis Chalmers Case & David Brown Farmall & International Ferguson Ford & New Holland John Deere Massey Ferguson Massey Harris Minneapolis Moline Oliver & Cockshutt Kubota / Yanmar

TRACTOR MANUALS

Allis Chalmers	Case	Farmall IH	Ford 8N,9N,2N	Ford
Ferguson	John Deere	Massey Ferguson	Minn. Moline	Oliver

Farmall & IHC Tractors Discussion Forum

F 20 magneto impulse

Welcome Guest, Log in or Register

Author

James Herrman

01-17-2005 23:04:36

Report to Moderator

Just lost the impulse (click)on my F20. It has an American Bosch MJB4A-106 mag. Where do I start????? ?? Are there (balls) and springs in there????? ?? Maybe just a spring????? ? Could it just be gummed up????? What should I do first to find the trouble???? Does the mag have to be removed from the tractor, or can I just leave it in place????? ALL help will be appreciated. Have never worked on mags before, but would like to learn. Could send it off, but want the satisfaction of at least trying to fix it myself, without damaging anything. Thanks in advance. JIM in ILL

[Log in to Reply] [No Email]

J Herrmann

01-18-2005 15:18:43

Report to Moderator

Re: F 20 magneto impulse in reply to James Herrman, 01-17-2005 23:04:36

Hi James. Where are you from? I am from central Il. Last names spelled almost the same, except for the extra n. e-mail me.

[Log in to Reply] [No Email]

James Herrman

01-18-2005 20:57:47

Report to Moderator

Re: F 20 magneto impulse in reply to J Herrmann, 01-18-2005 15:18:43

To James Herrmann----- - I am in central ILL also. email me. Just south of Peoria.

[Log in to Reply] [No Email]

James Herrman

01-18-2005 08:03:13

Report to Moderator

Re: F 20 magneto impulse in reply to James Herrman, 01-17-2005 23:04:36

THANKS for the information. Will try to get the manual and am very grateful for the pictures!!!!! ! The 20 has been sitting for over 27 yrs (inside) and just now got it running and then the impulse stopped. Other than that it is OK as far as I know. We bought it back in the late 50's and now that I have gotten some interest back, I wanted to get it running again. As this is my first attempt at working on a mag, am I "bitting off" more than I can handle??? Thanks again to all. JIM

[Log in to Reply] [No Email]

MagMan

01-18-2005 10:11:45

Report to Moderator

Re: F 20 magneto impulse in reply to James Herrman, 01-18-2005 08:03:13

I guess that depends on how resourcefull you are. There are a lot of mags that take special tools to do things to. Tools that cant be found very easly anymore. So you may have to make certain things . Also have to be real carefull not to break anything. Some parts are very hard to find also.If you down load the manual I was talking about and read it through a few times you will get a better idea on if you want to atemp it or not. JON

[Log in to Reply] [No Email]

James Herrman

01-18-2005 12:04:00

Report to Moderator

Re: F 20 magneto impulse in reply to MagMan, 01-18-2005 10:11:45

Understand what you are saying. Found the site, but was unable to find anywhere to download the manual. Appreciate it if you could give me some more info on the site navigation. I certainly do not want to break anything, but feel confident
(right now) that I at least want to do it. Thanks again for your time and also for time you spend answering questions for others. JIM I am more mechanical inclined that I am computer inclined. LOL

[Log in to Reply] [No Email]

MagMan

01-18-2005 13:10:10

Report to Moderator

Re: F 20 magneto impulse Heres the manual in reply to James Herrman, 01-18-2005 12:04:00

Here give this a try. Look at page one and two I think for index. Link

[Log in to Reply] [No Email]

MMark

01-18-2005 13:30:04

Report to Moderator

Re: F 20 magneto impulse Heres the manual in reply to MagMan, 01-18-2005 13:10:10

Thats great info on the F4 IH mag. However he said he had a American Bosch.

Mark Damewood

[Log in to Reply] [No Email]

MagMan

01-18-2005 14:00:43

Report to Moderator

Re: F 20 magneto impulse Heres the manual in reply to MMark, 01-18-2005 13:30:04

Sorry I must have missed that one I thought he had a F4. JON

[Log in to Reply] [No Email]

MMark

01-18-2005 16:41:25

Report to Moderator

Re: F 20 magneto impulse Heres the manual in reply to MagMan, 01-18-2005 14:00:43

I have to appologize, after rereading my response it kind of come off as being smarta$$. I did not intend it to be that way. I just wanted to be sure he got the correct information he was asking for. That mag should have a set of weighted impulse dogs, some of them had a torsion spring of sorts. More than likely the dogs are corroded on the pivots, the sring(s) could be broken. A good cleaning and oiling will more than likely fix the problem. If you have any problems let me know I have parts and can repair if neccessary.

Mark Damewood
Damewoods Mag Service

[Log in to Reply] [No Email]

James Herrman

01-18-2005 20:22:06

Report to Moderator

Re: F 20 magneto impulse Heres the manual in reply to MMark, 01-18-2005 16:41:25

Mark, how can I get hold of you?? MAY need some parts or pieces or just plain old info to build my confidence. JIM I have nation wide free long distance. I am in ILL.

[Log in to Reply] [No Email]

James Herrman

01-18-2005 20:19:14

Report to Moderator

Re: F 20 magneto impulse Heres the manual in reply to MMark, 01-18-2005 16:41:25

Boy I sure do appreciate all the help and replies that I have recieved. No Mark, I do not believe your comment was taken out of context. Just a normal reply to a question. I would have probably done the same. Thanks. JIM

[Log in to Reply] [No Email]

F-Dean

01-18-2005 06:37:02

Report to Moderator

Re: F 20 magneto impulse in reply to James Herrman, 01-17-2005 23:04:36

Try tapping it with the crank!

[Log in to Reply] [No Email]

Nebraska Cowman

01-18-2005 03:49:58

Report to Moderator

Re: F 20 magneto impulse in reply to James Herrman, 01-17-2005 23:04:36

you might be able to oil it and get it freed up but I would probibly dissasemble and clean. Likely you will find a lot of rust. Don't break anything, don't know where you would find parts.

[Log in to Reply] [No Email]

SproutW

01-18-2005 16:07:38

Report to Moderator

Re: F 20 magneto impulse in reply to Nebraska Cowman, 01-18-2005 03:49:58

Nebraska,

Where in the heck do you find all of the literature on these of F-series tractors? I've searched for many years with no luck.

[Log in to Reply] [No Email]

[Options] [Printer Friendly] [Posting Help] [Return to Forum] [Log in to Reply]

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

Copyright © 1997-2023 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