A set of points can only survive a current flow of 5 amps, maximum, and with a system voltage of 7.5 or so with the engine running and the generator charging properly, your 6V coil primary resistance should be around 1.5-2 ohms.
Forget measuring resistance. Very few ohmmeters are that accurate. Instead measure the voltage at coil. You want 6v at coil and 6v across the ballast works for my Jubilee.
3 ohms you may have a 12v coil. no ballast needed.
Bottom line, measure the current. I think most primary currents are about 4 amps.
My Jubilee measures 4 amps, 6v on coil and 6v on ballast. Points last a very long time. Excessive current and you will complain they don't make points like they used to..
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 - Buying your first tractor: Choosing the right one - by Chris Pratt. They cost less than the tax on a new tractor (at least where we live). They have the weight to do the job. They are simple and understandable. They even have a history and can be restored to become a major source of pride and enjoyment. But how do you know what to buy and how do you make the right purchase? There is a surprising number of machines available in every shape and size imaginable. Like most things in life, your needs have a lot to do with wh
... [Read Article]
Latest Ad:
1958 FORD RARE 4x4 801 TRACTOR, ELENCO/FRONT DRIVE, FRONTLOADER AND WEIGHTED REAR WHEELS, FIVE SPEED, LIVE PTO, GAS ENGINE, NEW REAR WHEELS AND TIRES, ENGINE RUNS.
[More Ads]
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.
