Mornin neighbor, good question: When wiring a GM 3 wire alternator to prevent feedback which might allow the gas engine to run even with the IGN turned off (alternator back feeds ignition coil), I have used:
1) Resistors in the 10 ohms or so range and even though such power isn't required, I might use a 5 or 10 watt just because they have bigger stronger leads which may be easier to wire and attach.
2) Incandescent small tail/marker light bulbs because their resistance can prevent run on PLUS they serve as a charge indicating "Idiot Light" My friend Bob M has, I believe, placed a resistor in parallel with the bulb so if the bulb burns out it still works.
3) Diodes anywhere in the 3 to 10 amp range with a voltage withstand rating of maybe 50 or more volts. Again, a bigger unit (though not needed) will have bigger stronger leads. Rat Shack has them. DONT FORGET THEY ARE POLARITY SENSITIVE so wire them with the - towards the alternator.
Ive even had some tractors that didn't run on EVEN WITH NO DIODES and I've seen them with much higher (then 5 or 10 ohms) ohms resistors that still worked.
Resistor or an incandescent idiot light or a diode will work, your money your tractor your choice.
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 - Harvestin Hay: The Early Years (Part 2) - by Pat Browning. The summer of 1950 was the start of a new era in farming for our family. I was thirteen, and Kathy (my oldest sister) was seven. At this age, I believed tractor farming was the only way, hot stuff -- and given a chance I probably would have used the tractor, Dad's first, a 1936 Model "A" John Deere, to go bring in the cows! And I think Dad was ready for some automation too. And so it was that we acquired a good, used J. I. Case, wire tie hay baler. In addition to a person to drive th
... [Read Article]
Latest Ad:
Sell 1958 Hi-Altitude Massey Fergerson tractor, original condition. three point hitch pto engine, Runs well, photos available upon request
[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.
