Yesterday's Tractor Co.
Shop Now View Cart
   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
Tractor Town
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

Related Sites
Tractor Shed
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Classic Trucks
Kountry Life
John Deere Tractors Discussion Forum
Show Parts for Model:

M-420 series question

Welcome Guest, Log in or Register
Author  [Modern View]

04-07-2014 09:05:08

Report to Moderator

I have been working on my 420c and still don't have it dialed in. I'm thinking this is electrical issues. Here is my question, I went back to my book to check about timing it again and in my book it says the flywheel is marked d/c-Spark and that is TDC on Comp stroke #1 cylinder...

On my 420 it does not have this mark on flywheel. I have a mark that Says RK and a straight line. Which should be used for timing mark?

[Log in to Reply]   [No Email]
Dave H

04-07-2014 18:00:17

Report to Moderator
 Re: M-420 series question in reply to JohnDeereJimOhio, 04-07-2014 09:05:08  
As i foggily recall, I brought those marks up to the little window and stuck something in there and cleaned then up a bit.

[Log in to Reply]  [No Email]

04-07-2014 12:25:41

Report to Moderator
 Re: M-420 series question in reply to JohnDeereJimOhio, 04-07-2014 09:05:08  
Thank you for the info, Im going to put a light on it this weekend...

[Log in to Reply]  [No Email]
Mike M

04-07-2014 12:55:39

Report to Moderator
 Re: M-420 series question in reply to JohnDeereJimOhio, 04-07-2014 12:25:41  
Put some chalk ( your a teacher right you should have some laying around )on the mark to help it show up when running.

[Log in to Reply]  [No Email]
Mike M

04-07-2014 10:10:55

Report to Moderator
 Re: M-420 series question in reply to JohnDeereJimOhio, 04-07-2014 09:05:08  
You likely have just the RK of the SPARK and the line under the words is your mark. IIRC that mark is for the spark at wide open throttle. Should be around DC when turning by hand or a really slow idle.

[Log in to Reply]  [No Email]

04-07-2014 10:27:01

Report to Moderator
 Re: M-420 series question in reply to Mike M, 04-07-2014 10:10:55  
I agree. I used a timing light on my MT and was able to get spark and the corresponding line in the window at full throttle and DC at low idle. It starts and runs great now!

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

Hop to:

Fast Shipping!  Most of our stocked parts ship within 24 hours (M-Th). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a company you can trust and have generous return policies. Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ About Us ]

Home  |  Forums

Copyright © 1997-2016 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