Congratulations, you've found the rectifier/voltage regulator which rectifies AC from the alternator stator and controls battery charging, but doesn't have ANYTHING to do with it not running!. Part # stamped on it, 491546, positively identifies it as such.
Engine makes it's own power for spark, at each coil/ignition unit, NO battery power is needed.
There's two electronic ignition coils connected in common through diodes to the "kill" wire or terminal on the engine. (second wire leaving the engine, besides wire from the regulator). The key switch/and/or safety switches ground this to chassis ground to stop the engine or prevent it from starting.
Disconnect that second wire and the ignition system of the engine is on it's own and spark should return.
Just remember, if it starts with that wire disconnected, the key switch won't shut it off!
If it DOES spark with the "kill" wire disconnected you can then trace the wiring in the machine and see what's shorted or what safety switch is shorting the "kill"wire to ground.
If spark does NOT return, you'll have to look under the flywheel shrouding to see if anything has happened to that wiring harness connecting the coils, as it's pretty unlikely BOTH coils have failed.
Upload one or more videos to your post. Photo filesizes should be less than 300K and Videos, less than 2MB. 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 - Tuning-Up Your Tractor: Secondary Ignition Wires and Distributor - by Curtis Von Fange. In our last episode we spent the entire day checking out the spark plugs. Is that efficency? Actually, it took more time to explain than it really did to do the inspection. At any rate we decided that a compression test was in order so we could verify the internal engine status. That way we wouldn't buy any tune up parts until we were sure that the engine was in reasonable mechanical condition. Our tests showed a fictional compression reading of 85, 80, 82 and 86 psi. That is well within a
... [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.
