ISO 1204:1990 Preview
Reciprocating internal combustion engines -- Designation of the direction of rotation and of cylinders and valves in cylinder heads, and definition of right-hand and left-hand in-line engines and locations on an engine
This standard was last reviewed and confirmed in 2014. Therefore this version remains current.
Contains figures to illustrate the meaning of the definitions. It does not apply to engines used to propel aircraft, automobiles and trucks, agricultural and indutrial types of tractors, road construction and earth-moving machines, and motor cycles.
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