. Bulletin - United States National Museum. Science. CADILLAC GASOLINE AUTOMOBILE, 1923 Gift of the Cadillac Motor Car Co. in 1923 (USNM 308218) This Cadillac chassis of 1923 (figs. 101 and 102) was originally exhibited in the Museum in contrast with the model-A Cadillac of 1903 (fig. 81) to indicate the many changes made in the automobile in a 20-year period. It is the model 61, which followed by 8 years the first Cadillac with a V-8 engine, the model 51 of 1915. It illustrates the construction of a quality car of its date. The V-shaped engine consists of two 4-cylinder blocks with detachable
. Bulletin - United States National Museum. Science. CADILLAC GASOLINE AUTOMOBILE, 1923 Gift of the Cadillac Motor Car Co. in 1923 (USNM 308218) This Cadillac chassis of 1923 (figs. 101 and 102) was originally exhibited in the Museum in contrast with the model-A Cadillac of 1903 (fig. 81) to indicate the many changes made in the automobile in a 20-year period. It is the model 61, which followed by 8 years the first Cadillac with a V-8 engine, the model 51 of 1915. It illustrates the construction of a quality car of its date. The V-shaped engine consists of two 4-cylinder blocks with detachable cylinder heads placed at a 90° angle upon an aluminum crankcase. The bore and stroke are 3Vs inches and 5Vs inches, respectively, giving a total piston dis- placement of cubic inches. At 2,700 revolutions per minute 60 horsepower was developed. The 16 valves are mechanically operated by a single camshaft located in the center of the engine above the crankshaft, which is sup- ported in three bearings. At the front of the engine a Morse timing chain drives the camshaft and also the Delco distributor of the battery ignition system. A pivoted weight, turning with the shaft of the distributor, automatically advanced the ignition tim- ing as higher speeds were reached. The timing chain also turns a shaft, lying in the V of the engine, to drive the Figure 101. — Photo, made in 1923, of 1923 Cadillac chassis in Transportation Hall of National Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
