ENGIN 27 Study Guide - Final Guide: Tungsten, Fastener, Horse Length
Document Summary
The photographs below show a piston connecting rod assembly that has been removed from an internal combustion engine. In the engine, the big end of the connecting rod would be connected to a rotating crankshaft, and the piston would move with a reciprocating linear motion inside one of the cylinders in which combustion occurs. Piston pin: during the reciprocating motion of the piston, the piston pin rotates relative to the piston. From the list of ansi fit grades given in appendix a, recommend a suitable grade of fit between the piston pin and the piston. Clearly explain why you have chosen this grade of fit. Rc4, rc5 or rc6 are acceptable answers [1 point] Good answers could explain why tighter and looser grades would not be adequate. 2: from the images above, deduce a sequence of processes that could have been used to manufacture the connecting rod economically, while meeting adequate dimensional tolerances.
