Connecting Rod: Description and Operation

The connecting rods are forged and incorporate bushes for the wrist pins. The wrist pin bushes and big-end bearing shells are replaceable. The wrist pins are of the fully-floating type, being free to turn in both piston and connecting rod. Axial movement of the pin is limited by a circlip inside the piston boss. The long stroke (9O mm) not only improves the balance of the engine but also keeps down fuel consumption.