CHAPTER I TRACTOR PRINCIPLES Comparison between tractors and automobiles—What is required for each—Advantage of understanding the mechanism—No standard tractor design—Principal parts of a tractor—Necessity for each 1 CHAPTER II ENGINE PRINCIPLES Power attained from heat—Combustible mixture—Principle of engine operation—Combustion space—Gas engine cycle—Dead strokes—Flywheel—Starting an engine—Inlet stroke—Compression stroke—Importance of compression—Ignition—Advance and retard of ignition—Power stroke—Exhaust stroke—Production of power—Vertical and horizontal engines—Firing order 9…
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