Posted by Tom Fleming on January 02, 2010 at 15:08:23 from (206.193.247.91):
In Reply to: Cub hard start posted by J Wilbur on January 02, 2010 at 14:42:25:
Joe, you didn't mention if this is a magneto ignition or distributor. If it is a distributor, you may want to check the condition of your battery, and also the points. The ignition coil is a "step up" for voltage. When you crank an engine, the voltage drop on the battery is significant. The lower the voltage going into the coil, the lower the output of the coil. In cold weather, the voltage drop due to higher cranking amp requirements is even greater.
Another thing to check is the plugs and wires. Old wires with corroded contacts, or evern worse, old composite core wires (ie. not copper wire core) require a lot of voltage to fire plugs with a good, hot spark. Also, make sure both ends of the battery cables are clean and making good contact.
An old timer taught me that in cold weather, it is actually better to start a distributor tractor with a hand crank in really cold weather, as you are using the full voltage of the battery. Technique is rather simple. turn on fuel, put choke on, 1/2 throttle, and leave the ignition off. 2 full cranks. Set choke to 1/2 position, turn ignition on. quick crank. Will fire almost everytime, and often will run from there.
on the 72-79 Ford ignitions, they had a bypass wire (brown) that took voltage in front of the solonoid, so the voltage to the ignition was higher. Same concept.
Short recap: check battery to be up to full charge, check all electrical connections, check points and plugs. Sounds like your battery is getting weak, or you have some dirty electrical connections......or both
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 - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
... [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.