3308459 - 1028H pistons and connecting rods (Automatic transmission)

CONNECTING RODS

The connecting rods are made from hardened and tempered steel, with a copper bush (1) fitted for matching 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.

CYLINDER LINERS/BORES

They are made from cast iron and are the type which are supported at the bottom with the coolant fluids coming into direct contact with the outside to ensure a more even dissipation of the heat (when wet).When refitting the engine, check that the cylinder liner/bore projection in relation to the cylinder block/crankcase is within the recommended values.