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

Company Logo Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 
Marketplace
Classified Ads
Photo Ads
Tractor Parts

Community
Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Galleries
Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Articles
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
Glossary

Miscellaneous
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
:

LUC timing the magneto

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

07-31-2020 06:31:38




Report to Moderator

I pulled of the magneto shortly after i got this LUC cuz the engine was stuck. I now have the engine turning over good and ned to put the mag back on but don't know how to install it in the correct location. I have found the D/C mark and the PARK markings on the flywheel. Any Help would be appreciated.




[Log in to Reply]   [No Email]
nashranch

08-12-2020 08:46:54




Report to Moderator
 Re: LUC timing the magneto in reply to nashranch, 07-31-2020 06:31:38  
After spending too much time trying resurrect this LUC I have decided to S can this project. Engine was stuck pretty bad, I got that unstuck but surely the rings are wore out. Also valve seats were badly pitted so i borrowed some old valve grinding tools from my neighbor and tried to clean up the valve seats. 3 outta 4 cleaned up ok but the #1 exhaust seat was really bad. I kept grinding away at it but never could get even a new valve to seat. Now it needs a insert installed to save it. Probably too costly to have a machine shop tackle it. So now i have a JD boat anchor with a good Wico X mag and a good M/S Carb and new set of valves. Also a good wide belt pulley drive unit. I would assume the crank is good too. Anybody needing anything off this anchor please PM me. I will ship the small stuff to ya

[Log in to Reply]  [No Email]
nashranch

07-31-2020 15:27:28




Report to Moderator
 Re: LUC timing the magneto in reply to nashranch, 07-31-2020 06:31:38  
Yep there is suction but missing on #1 I think. Barely any compression on #1 again since I've been cranking on it. Cylinder #1 is not in good shape. Right now I have carb apart.. need to order gasket kit. It may have been plugged up too. Never saw any wetness on plugs



[Log in to Reply]  [No Email]
nashranch

07-31-2020 13:43:40




Report to Moderator
 Re: LUC timing the magneto in reply to nashranch, 07-31-2020 06:31:38  
Mag is back on and timed correctly. This engine was stuck pretty bad but i was able to get it loosened up. Several of the valves were stuck open too so i pulled all the valves to check them out. They were not pretty. I hand lapped them in. used the old head gasket and put all back together. I get 45 PSI in both cylinders after a dab of oil in each cylinder. I know not good. It of course does not start hand cranking. I even tried reversing spark plug wires thinking i was 180 out. Looking more like a boat anchor

[Log in to Reply]  [No Email]
David G

07-31-2020 15:05:00




Report to Moderator
 Re: LUC timing the magneto in reply to nashranch, 07-31-2020 13:43:40  
That is extremely low compression, does it suck good on your hand if someone else cranks?



[Log in to Reply]  [No Email]
David G

07-31-2020 10:10:06




Report to Moderator
 Re: LUC timing the magneto in reply to nashranch, 07-31-2020 06:31:38  
Make sure you are on compression for #1, there are two TDC's



[Log in to Reply]  [No Email]
Mike M

07-31-2020 06:45:41




Report to Moderator
 Re: LUC timing the magneto in reply to nashranch, 07-31-2020 06:31:38  
Get it set so that d/c mark is even with the bottom edge of the timing window hole when it sparks to cylinder # 1 which is the one closest to the fan. This will help prevent kick back when cranking as it makes it fire a little after dead center. TDC is when the D/C mark is in the center of the window. Spark mark would be running timing and could be checked with a timing light. Only thing I can't remember off the top of my head is which terminal is recommended to be # 1 on the mag.

[Log in to Reply]  [No Email]
nlastovi

07-31-2020 06:40:27




Report to Moderator
 Re: LUC timing the magneto in reply to nashranch, 07-31-2020 06:31:38  
Quoting Removed, click Modern View to see

I used google to search on the subject of your post "LUC timing the magneto" and found multiple hits. including the first one which has this text:

Magneto Timing for John Deere L & LA tractors :

1. Loosen the timing cover to see inside timing hole.

2. Remove the mag dist. cap.

3. Turn engine clockwise slowly until you hear the impulse trip. Stop.

4. Then turn slightly counter clockwise until you see the spark mark on flywheel in timing hole and it lines up with mark on center of timing hole.

5. At this place the points should just be beginning to open.

6. If not beginning to open loosen nuts on mag and rotate mag inward or outward until points just begin to open and then tighten nuts on mag.

If that doesn't work to time with mag removed:

1. With timing hole open turn engine clockwise until spark mark is on the center of the timing hole.

2. Remove mag dist. cap.

3. Turn mag gear counter clockwise until dist. rotor is in 10 o'clock spot and then back clockwise until points just begin to open and dist. rotor is in 8:30 o'clock spot.

4. Hold mag in this position while installing on tractor and it may be necessary to turn some to align the gears and then tighten nuts.

5. If timed properly and when crankshaft is turned clockwise until the impulse trips the D.C. mark on flywheel should be at the lower edge of the timing hole when impulse occurs.

Instructions - operators manuals and parts catalogs are available from JD Publications at 1-800-522-7448 or through your dealer or by visiting the JD Tech Publications site. http://techpubs.deere.com

DIR206 Instructions for JD L tractor

DIR207 Instructions for JD LA tractor

DIR208 Instructions for JD LI tractor

PC150 Parts Catalog for L tractor

PC151 Parts Catalog for LA & LI tractors

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

Hop to:


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 © 1997-2020 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