Posted by John T on November 12, 2007 at 06:02:52 from (66.244.83.147):
In Reply to: Spark plug gap posted by Mike CA on November 12, 2007 at 00:05:03:
Mike, Myself n others have spoken on this subject for years, not sure if everyone ever agrees lol its almost like politics. Id agree the 3116 is better then the 386 in an antique tractor application cuz its a NON RESISTOR plug and far as I know its heat range is somewhat higher then a 386 sooooooo its BOTH hotter and non resistive.
As far as the gap, I see that as very much related to the rest of the ignition system, especially the coil, as a primary concern regarding whichever plug one chooses. As youre probably aware as the gap widens the spark can change from a hotter blue to a yellow spark, so the best trade off where the spark is plenty hot but the coil voltage is operating where it and the rest of the system was designed for probably yields the best gap choice. Only way I see to teat all this would be hooked to a Dyno but thats also gotta be weighed against the coils specs and its service life as if its overworked she may develop a few more HP but at the expense of earlier coil or points failure?????????
Sooooooooooooo all that being said, and as the owners manual recommendation is based on the entire ignition system (especially the coil) and its capabilities n limitations........ and the gap distance is more important then whatever brand plug is used,,,,,,,,,,,,,,
I AGREE WITH RUSTY, ID GO WITH WHAT IT SAYS
I think resistive versus non resistive plugs and their heat range is more important then what brand plug one uses and one primary cause of premature fouling is when we light duty use n parade thes old tractors around verus using them loaded and keeping the temp up to 180 and higher. Keep the ignition well tuned, dont run the carbs over rich, keep the temperature up and use a hotter range of non resistive plugs should help.
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 Profile: Allis-Chalmers Model G - by Staff. The first Allis-Chalmers Model G was produced in 1948 in Gasden, Alabama, and was designed for vegetable gardeners, small farms and landscape businesses. It is a small compact tractor that came with a complete line of implements especially tailored for its unique design. It featured a rear-mounted Continental N62 four-cylinder engine with a 2-3/8 x 3-1/2 inch bore and stroke. The rear-mounted engine provided traction for the rear wheels while at the same time gave the tractor operator a gre
... [Read Article]
Latest Ad:
Oliver 550 Diesel runs like a watch three point hitch pto engine gone threw about two hundred hours ago nice clean tractor
[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.
