Posted by Jerry/MT on November 12, 2012 at 17:49:05 from (126.96.36.199):
In Reply to: Frosty carb- posted by Mr. T. Minnesota on November 11, 2012 at 07:58:30:
The evaporation of fuel in the carb cools the mixture and below ~ 50 °F, and if the humidity is high enough, the wall temperature in the carb will drop below freezing and exterior frost can be seen. Frost can also form in carb venturi (from the humid air), and over the transition port and butterfly and mess up the mixture control. It might run ratty until the manifold heats up enough to prevent this. It"s a problem with leaner mixtures so Detroit added the heated intakes on engines in the late "60"s and early "70"s when the first emmission controls came in on cars. Adding Heet additive to the fuel will not prevent this only a heated intake will. That"s why aircraft engines have carb heat. It"s obviously more critical for them.
Fast Shipping! Most of our stocked parts ship within 24 hours (M-Th). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a company you can trust and have generous return policies. Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ About Us ]
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.