Posted by Janicholson on December 28, 2012 at 16:39:27 from (74.60.94.18):
In Reply to: Long arcing sparkplug posted by pete hall on December 28, 2012 at 16:09:22:
When a spark coil is saturated with magnetism and the points or electronic switch break (mag or distributor are the same in this regard) the magnetic field collapses. as it does so the voltage in the spark wire/s builds up until the voltage at the widest gap is sufficient to start a cascade of electrons making a plasma trail of super heated air (spark). If the plug is fouled, the voltage can bleed off and or the spark is along the surface of the insulator to ground, and not out in the fuel/air mix. When a person puts a wider gap in the spark path, the voltage must rise above the gap resistence and when it does it is far higher than it was just with the fouled plug. This higher voltage jumps that gap and is high enough to jump to the ground electrode and fire the cylinder. Cleaning the plugs (heating it to near red with a propane torch on a fire brick to burn out fouling can work. New plugs are a better choice. Fixing the engine to reduce oil consumption is best. Jim
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 - Tractor Hydraulics - The Basics - by Curtis Von Fange. Hydraulics was one of the greatest inventions for helping man compound the work he can do. It’s amazing how a little floor jack can lift tons and tons of weight with just the flick of a handle. What’s even more amazing is that all the principals of hydraulic theory can be wrapped up in such a small package. This same package applies to any hydraulic system from the largest bulldozer to the oldest and smallest tractor. This short series will take a look at the basic layout of a simple hydraul
... [Read Article]
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.
