Posted by Owen Aaland on July 15, 2009 at 19:02:03 from (65.165.246.156):
In Reply to: Sweaty Carb posted by pete 23 on July 12, 2009 at 11:53:43:
pete 23 said: (quoted from post at 11:53:43 07/12/09) The sweating is due to the vaporization process of the fuel and humidity in the air. As anything changes from liquid to a vapor it draws heat from somewhere so carb get cold and moisture condenses. May not be the pure scientific explanation of the process but that is the point of it anyway. Also, the better it vaporizes, like with a leaner mixture or better venturi system the more they sweat and if right outside air temp, freeze up. As far as running a minute, sounds like fuel supply into carb problem.
The fuel vaporization is only part of the reason that the carb gets cold. The other factor is air pressure. When air is compressed, heat is given off. This is the reason that air compressors get hot. The reverse is also true. When pressure is reduced the air gets colder and draws heat from whatever is around it. Moving air has less pressure than static air. The venturi causes the air to move faster, since it has to pass through a smaller opening, and is used to drop the pressure in the carb in the area of the fuel nozzle. The atmospheric pressure on the fuel in the carb bowl is then more than the pressure at the venturi which pushes fuel out the nozzle. This drop in pressure in the venturi also draws heat from the surrounding carb. Under the right conditions this can cause ice to form on the nozzle and restrict the fuel flow.
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 - Uncle Cecil's Super A Lives Again - by Mike Purcell. A week or so out of most of my childhood summers was often spent with my Uncle Cecil and Aunt Sissie in the small East Texas town of Maydelle on their 80 acre farm. Some of my fondest memories of these visits are those of learning to drive a tractor at the helm of Uncle Cecil’s 1948 Farmall Super A. Uncle Cecil was the second owner of this wonderful little tractor, but it was almost as though he had adopted an infant. The original owner was a man from Minnesota who bought her from a local dea
... [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.
