3022410 - 1028H pistons and connecting rods

OPERATION

Connecting rods

The connecting rods are made from hardended and tempered steel, with a copper bush (1) fitted for matching with the gudgeon pin (2).The floating gudgeon pins are secured by two circlips (3) seated in specific grooves in the piston skirts.

Pistons

The aluminium-silicon alloy pistons with autothermic inserts (1) are graded into three sizes; to ensure correct assembly, an arrow is stamped on the crown to show the direction of rotation of the engine.The piston crown is concave and has four notches to prevent interference with the valve heads.