There are differences. First is the polarity of the coil. The coils negative small terminal should connect to the distributor, matching the polarity of the alternator. The amp gauge should read negative when it is not running and the lights are switched on, and positive when the engine is running just after starting. Then it should drift back toward zero at the battery is fully charged. A true 12v coil will be wound internally to run at 14+ volts with no ceramic ballast resistor. A coil requiring a resistor will be labeled as such. a coil requiring a resistor will have an ohm reading of 1.2 to 1.4 ohms. a true 12v coil will measure in the 3 to 4 ohm region. These are measured with one wire disconnected from the small terminal, and measured across those small terminals. The alternator brand and number are needed to determine what needs to be wired to which terminals, so we need to know that, a picture will help (see the bottom of the screen to load an image. Wire sizes from 6 volt are good to go). If replaced, use the same gauge wire. Use terminals that solder on, and then use shrink tubing to seal that connection. They are simple and a diagram should be in your repair manual (YT sells them). Modify it as described above. Lamps should be changed to 12v equivalent, or LED for headlights. Jim
Upload one or more videos to your post. Photo and video filesizes should be less than 5MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
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 - Box Plow Blues - by Tom Schwarz. One of the first implements most tractor owners obtain is the box plow. For very little money, this piece of equipment promises to plow and flatten any hill or vale on your ranch road or farm. At least that's what I thought! As simple as a box plow appears, it can be rather challenging to make work correctly. In our sandy soils of Florida, traction is king. You can never have wide enough tires or heavy enough weights to get all the traction you want … unless you own a monster tractor. U
... [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.
