Building an Automobile, Step 02: Crank-Shaft and Fly-Wheel Small 320×174 Medium 640×348 Large 1024×557 Download Tiff Original 2400×1305 | (527.1 KB) Description "Crankcase with crank-shaft and fly-wheel added. The crankshaft serves the same purpose in an automobile as the pedals do on a bicycle. The fly-wheel on the end helps it to keep turning at an even speed." -Bodmer, 1917 Keywords automobile, building a car, car parts, crank case, crank shaft, crankcase, engine, even speed, fly wheel, mechanics Galleries Motor Vehicle Mechanics Source: Rudolph J. Bodmer, ed. The Book of Wonders (Washington, DC: Bureau of Industrial Education, Inc., 1917)