Lesson #1: "VENTURI" "A short tube with a tapering constriction in the middle that causes an increase in the velocity of flow of a fluid and a corresponding decrease in fluid pressure and that is used especially in measuring fluid flow or for creating a suction -as for driving aircraft instruments "OR DRAWING FUEL INTO THE FLOW STREAM OF A CARBURETOR". (The caps apply to your situation). Lesson #2: "EXPANSION OF A GAS IS A COOLING PROCESS". Lesson #3: Fuel air mixture travelling through the venturi section of a carburetor can cool as much as 60 degrees F. Lesson #4: On a 90 degree day you could cool the fuel air mixture down to 30 degrees F and if sufficient moisture is present it could form ice. CARBURETOR ICE, NOT FUEL LINE ICE!!! Lesson #5: What are you going to do? To prevent carburetor ice, you could incorporate some sort of carburetor heat device. OR, YOU COULD BUY SOME GAS WITH A SPECIFIC CARB ICE PRVENTATIVE. We found, on an old Ford cabover truck with a habit of forming carb ice (at about 40 degrees and a foggy, rainy day) we could prevent carb ice by using Mobil Supreme gas. It had an anti-icing additive which worked for us. Don't rely on 10% ethanol. It probably won't be enough. Or, try some anti-icing additive in the gas-which goes through the carburetor. Right?
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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