3363695 - INTRODUCTION - CRANKSHAFT AND FLYWHEEL

CONSTRUCTION SPECIFICATIONS

The crankshaft is made from induction hardened cast iron. Resting on five main bearings with interposed half-bearings divided into size categories.The crankshaft endfloat is adjusted by two half-rings housed on the middle main bearing.Eight counterweights at 180° balance the crankshaft rotary masses with precision.

COMPOSITION

The crankshaft consists of:

• main journals (1), through which it rotates on supports with bearings (bushings) in between;crank pins (2) above which the connecting rod big ends are hinged;crank arms (3), at the same height as the midway stroke which join the main journals and the crank pins.

In addition, the shaft is also prepared for:

• the fitting of the flywheel;the fitting of phonic wheelfitting the gear which transmits power to the timing system components by means of a toothed belt.