Connecting Rod:

The connecting rod links the piston to the crankshaft. See the figures for the location of the connecting rods within an engine. The rods are made from drop-forged, heat-treated steel to give the needed strength. Every end of the rod is bored, along with the smaller top bore connecting to the piston pin (wrist pin) within the piston as display in Figure. A large bore end of the rod is split in half and bolted to permit the rod to be attached to the crankshaft. A few diesel engine linking rods are drilled down the middle to permit oil to travel up from the crankshaft and within the piston pin and piston for lubrication.

A difference found within V-type engines which affects the connecting rods is to position the cylinders in the left and right banks straightly opposite each other alter of staggered (most general configuration). This arrangement needs that the connecting rods of two opposing cylinders share the similar major journal bearing on the crankshaft. To permit this configuration, one of the connecting rods has to be split or forked around the other.