Yesterday's Tractor Co. Tractor Parts for All Brands
Click Here or call 800-853-2651 
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 
Marketplace
Classified Ads
Photo Ads

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
TractorLinks.com
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Classic Trucks
Kountry Life
Enter your email address to receive our newsletter!

subscribe
unsubscribe
  
Ford 9N, 2N & 8N Discussion Forum
Show Parts for Model:

8N 6v front mount distributor-Problem no spark at plugs

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

09-06-2010 11:03:23
75.91.43.31



Report to Moderator

Tractor has ran fine, go out pull choke and it turns over one time and cranks.Parked it a month ago running fine, shut it off, took the key out with it running fine. Went out today and got no spark. Is it gremlins paying me a visit or what?




[Log in to Reply]   [No Email]
Ultradog MN

09-06-2010 17:09:03
174.20.21.123



Report to Moderator
 Re: 8N 6v front mount distributor-Problem no spark at plugs in reply to Joe Northrup, 09-06-2010 11:03:23  
The trouble with points is they need a lot of maintenance. Points can be good but get a haze or film on them that sliding a piece of grocery bag through them will correct. Simple as that.
Not too much to ask from an old rig like an N.
You could also convert the tractor to 12V, add electronic ignition and probably not have to mess with your electrics ONCE between battery changes = about 4-5 years. I'd be willing to do the grocery bag thing on a side mount. But on a front mount?
Why?

[Log in to Reply]  [No Email]
Joe Northrup

09-06-2010 11:37:15
75.91.43.31



Report to Moderator
 Re: 8N 6v front mount distributor-Problem no spark at plugs in reply to Joe Northrup, 09-06-2010 11:03:23  
Also I have fire where the wire comes into the top of the coil. I have no idea from this point what to look for or how to look for it. Just strange how it worked fine then it quit.



[Log in to Reply]  [No Email]
old

09-06-2010 11:55:35
4.245.2.241



Report to Moderator
 Re: 8N 6v front mount distributor-Problem no spark at plugs in reply to Joe Northrup, 09-06-2010 11:37:15  
You probably have dirty corrode points that need cleaned or replaced



[Log in to Reply]  [No Email]
Joe Northrup

09-06-2010 12:58:17
75.91.43.31



Report to Moderator
 Re: 8N 6v front mount distributor-Problem no spark at plugs in reply to old, 09-06-2010 11:55:35  
So I have the distributor and coil still togather on the table in front of me. How do I verify that all is working in dist.
Thanks



[Log in to Reply]  [No Email]
Bruce (VA)

09-06-2010 14:30:01
71.62.51.74



Report to Moderator
 Re: 8N 6v front mount distributor-Problem no spark at plugs in reply to Joe Northrup, 09-06-2010 12:58:17  

Assuming that the bushings & advance weights are ok, & that you have correct voltage to the coil, the most common electrical failure (no spark, weak spark) points on the frontmount are:

1. The insulator under the brass concave head screw.

2. The insulator at the end of the points where the copper strip attaches.

3. The copper strip is broken or grounded to the plate.

4. The condenser wire grounding.

5. The pigtail/tab not making contact.

6. Incorrect positioning of the spring clip on the plate causing the pigtail to ground.

7. Incorrect seating of the coil on the distributor due to a loose bail or no gasket; the coil must not move at all.

8. Water/moisture inside the cap due to gasket failure or the absence of a gasket.

9. Dirty/corroded/incorrectly gapped points

10. Burned rotor, cracked/carbon tracked cap.

Unless the coil is cracked or shows a dead short, chances are it's fine; square coils rarely fail cold. Pull the distributor & do a continuity check.

First, make sure your meter/light works (don't ask....)

Next, dress the points by running a piece of card stock or brown paper bag through them. New points sometimes have an anti-corrosive dielectric coating on them & old points can corrode or pick up grease from a dirty feeler gauge or excessive cam lubricant. Then, check the gap at .015 on all 4 lobes.

Now, follow these steps:

1. Coil off, cap off, points open. One probe on the brass screw & the other on both sides of the open points. On the side closest to the cam, you should have continuity. Not on the other side! If you do, you will also have continuity everywhere because the points are grounded.

2. Coil off, cap off, points open. One probe on the brass screw & the other anywhere on the body of the distributor. You should have no continuity! Now, rotate the tang on the distributor....as the points open & close, you have continuity (closed) and lose it when they open.

3. Coil on, cap off, points open. One probe on the lead on the top of the coil, the other on the cam side of the open points. You should have continuity!

4. Coil on, cap off, points open. One probe on the lead on the top of the coil, the other anywhere on the body of the distributor. You should have no continuity!


At this point, I just put the distributor, coil & cap all back on the tractor as a unit (it’s easier to do this from the left side). The reason I do this is because it is real easy to get the cap or coil mis-aligned trying to put it back together one piece at a time & the result is something gets broken or you get a ‘no spark’ problem.

Post back w/ results & any other questions.

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

Hop to:

TRACTOR   PARTS TRACTOR   MANUALS
Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F).  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. [ More Info ]

Home  |  Forums


Copyright © 1997-2014 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