Posted by John T on June 12, 2019 at 12:48:12 from (45.16.200.171):
In Reply to: Coil problems posted by Lonewolfwd on June 12, 2019 at 05:39:05:
When you switched from a Generator to an Alternator did you happen to switch from 6 to 12 volts ???????????? Is it a 6 or 12 volt tractor??????
If so (changed from 6 to 12 and kept old coil) you need to EITHER add an in line (between ignition switch and coils input) series voltage dropping (12 down to 6) ballast resistor orrrrrrrrrrrrrr toss the old 6 volt coil and install a new full true 12 volt rated coil no ballast required. If you use a 6 volt coil at 12 volts it will overheat badly plus the points will burn quickly.
If you did not change voltage you might want to check the alternator to insure its wired correct and its NOT producing too high voltage and overcharging the battery. If the voltage regulation circuitry is working properly and the battery is okay at fast RPM a good alternator might raise battery voltage to at least 13 up to 14 + volts would be normal and okay. However if its approaching 15 or more for extended times the battery will overcharge, coil draw excess current, and points burn sooner.
If its overheating so bad the top splits off it must be drawing excess current caused by too high voltage or its a 6 volt coil being operated at 12 volts THAT NEEDS FIXED take a volt meter and see what voltage the battery is with tractor running and insure you have the correct coil and/or coil and ballast if required. MAKE SURE THE ALTERNATOR IS WIRED CORRECT AND ISNT PRODUCING TOO MUCH VOLTAGE
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 - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
... [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]
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.
