If the diode went bad it would drain the battery if it was shorted or the alternator would not start to charge if it was open circuited.
At this point you don't need to worry about the alternator wiring. Check for voltage from the starter. The wire from the starter goes to the ammeter. From the other side of the ammeter it goes to the key switch, the push button switch, and back to the S terminal on the solenoid. If you have power through that circuit it should crank. Since it will not crank from the push button I think you will find the problem in this area.
There is another wire that goes from the key switch to the resistor by the ignition coil. There is a wire from the other side of the resistor that goes to the coil. There is another wire on that side of the resistor that comes from the I terminal on the solenoid. This is the wire that bypasses the resistor to give the coil more voltage for starting.
The last wire goes from the other side of the coil to the distributor. When the points are open this wire should have battery voltage. When the points are closed there should be no voltage on the wire.
If all the wires have the correct voltages and you still have no spark, the problem is in the secondary side of the ignition system. Those parts are the coil, rotor, distributor cap, plug wires, or spark plugs.
This post was edited by Owen Aaland at 19:28:23 08/15/13.
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 ]
Today's Featured Article - Tractors and the City Boy - by Ken. A few years back I came to the conclusion that city life wasn�t for me. The houses so close together you could hear the neighbors fight, traffic so heavy speed limit signs meant nothing. So I started looking for the ultimate country setting. After many months I found the perfect place, off the beaten path, up a private � mile drive, old stone house which has stood the test of time, out buildings which haven�t stood the test of time, trees, birds, rabbits, and snakes. This is the place! Bought
... [Read Article]
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.
