|
Farmall & IHC Tractors Discussion Board |
Ask Your Friendly Ammeter
[ Expand ] [ View Replies ] [ Add a Reply ] [ Return to Forum ]
Posted by A. Bohemian on April 30, 2007 at 15:00:17 from (207.170.88.197):
In Reply to: Farmall M no spark posted by astroman on April 30, 2007 at 11:42:57:
Note: the following test is quickly and easily run as it does not involve connecting or disconnecting anything. All you have to do is put your butt in the seat and OBSERVE... What does the ammeter read when you turn on the ignition WITHOUT cranking? It should show approx. 4 amps discharge. No discharge? Points are bad, open, or there is an open somewhere else. The points are not likely to be open; the engine almost always comes to rest with them closed. If there is no current flow, old and the others may well be right; Kettering systems like to be started now and again to make sure the surface of the points stays viable. You can perhaps clean them; others can help you better than I with that task. Normal 4 amp discharge? Crank the motor. The ammeter should fluctuate as the points open and then close and the current flow stops and starts again. No fluctuation? The points are not opening for some reason or there is a short somewhere.
Replies:
Home
| Forums
Today's Featured Article -
Timing Your Magneto Ignition Tractor - by Chris Pratt. If you have done major engine work or restored your tractor, chances are you removed the magneto and spark plug wires and eventually reached the point where you had to put it all back together and make it run. On our first cosmetic restoration, not having a manual, we carefully marked the wires, taped the magneto in the position it came off, and were careful not to turn the engine over while we had these components off. We thought we could get by with this since the engine ran perfectly and would not need any internal work. After the cleanup and painting was done, we began reassembly and finally came to t
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
Copyright © 1997-2025 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 HeadquartersWebsite Accessibility Policy |
|
