CHAPTER IX. THE MOTOR 90-108

Value of Fuel Utilized. The Waste. Water Absorption. Engine Types. The Four-Cycle Engine. The Two-Cycle. Compression. Economy of Four-Cycle Engine. Valve Movements. The Ignition point in the Cycle. The Fly-wheel. Impulses in Four-Cycle Engine. The Cylinder Case, and Connections. Piston and Crank Construction. Calculating the Efficiency. Pressures in Explosions. Expansion Line. Mean Effective Pressure. The Two-cycle Engine. Foot Pounds. Work or Energy. Cycle of Operation. The Crank Shaft. Special Metal. Engine Troubles. Difficulties pointed out. Starting the Engine. Carbureter. Low Compression. Mixtures. Spark Plugs. The Weather. Drainage.