Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

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
Salvage

Community
Discussion Forums
Project Journals
Your Stories
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

  
Farmall & IHC Tractors Discussion Board

Re: BigTone is it running and Charging???


[ Expand ] [ View Replies ] [ Add a Reply ] [ Return to Forum ]

Posted by Janicholson on October 09, 2012 at 20:24:18 from (96.24.99.126):

In Reply to: Re: BigTone is it running and Charging??? posted by BigTone on October 09, 2012 at 15:06:10:

Two things need to be evaluated.
If the light never came on with the coil attached and the ignition on, the engine will never run. The timing might be OK, but the points are doing nothing. The rotor and inner dust cover (which just gently pries off) must be removed to access the points, there is a problem. The points are nothing but a switch that opens every time the coil is to fire. It is buffered and helped by a condenser (capacitor), which is mounted so it is across the open points, and shorted by the points when they are closed. Right now one of the following is happening: The points are not opening at all (set wrong), or the point"s connection to the pass through terminal is shorted to ground, or the pass through terminal is shorted to ground, or the condenser is bad.
If the points are not opening, the terminal remains grounded (as it is when the light stays off). To fix it, the engine must be turned enough that the breaker cam (4 switch moving bumps that move the points located on the same shaft as the rotor) is located with a "cam bump" positioned to open the points. The points must be clean and properly adjusted. The gap is adjusted by loosening a point mounting screw and moving the fixed point closer to or farther away from the movable point contact. The measurement is .020", and must be close to this with a good feeler gauge "feel" (a light pull with no movement toward closed when removed.)
If the points are opening, as it is with no changes, then the system is shorted to the case at the pass through, or the metal of the condenser/points system is touching the case.
There are fiber washers that allow the pass through to remain insulated from the distributor case. From outside to inside there is a nut, a lock washer, the coil lead. On the inside the stack continues with a special fiber washer/bushing that fits in the case hole and insulates the stud. then a flat washer, then a nut, then another flat washer, then the flat spring and conductor of the points, then the wire connector of the condenser, then a flat washer, then the inside nut.
I know this from repetition.
If the condenser is bad (as in shorted) the points will open normally, but do nothing because the condenser is effectively shorting them out.
If the ign switch is turned on, the points (when open) will spark if a screw driver is used to bridge across them. this will also make a high voltage spark. If it will not do tha it is still wrong. Best of luck with that.
The reason the float is sticking open may be that the float drop tab is not set correctly, and the float is dropping into contact with the bowl as it drops, or there is a bit of trash under the needle keeping it open. (equal probability) a carb manual will help with that. Jim


Replies:




Add a Reply

:
:
:

:

:

:

:

:

:

Advanced Posting Options

: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.



 
Advanced Posting Tools
  Upload Photo  Select Gallery Photo  Attach Serial # List 
Return to Post 

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


Today's Featured Article - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our ... [Read Article]

Latest Ad: 1997 cub cadet 7275 compact utility tractor 4wd hydro trans cracked block 3500 [More Ads]

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