INTRODUCTION - CRANKSHAFT AND FLYWHEEL

2.2

SPECIFICATIONS

Made from cast iron, the crankshaft is supported by five main journal bearings, supported by crankcase bearings with eight counter-weights.

The flywheel is fitted on the eighth counter-weight which, together with the rpm sensor, produces the signal for the speed of the crankshaft and the position of T.D.C.

The crankshaft is connected to the twin mass damping type flywheel described in ASSEMBLY 18 together with the clutch.

1. Crankshaft

2. Flywheel

3. Flange for flywheel attachment

2.4 JTD 20v

CRANKSHAFT

This is steel and rests on six main bearings. Shaft axial clearance is governed by two half-rings housed in the rear main bearing.

Ten counterweights balance the crankshaft rotary masses with precision.

A set of channels runs along the length of the crankshaft to lubricate the main journals and crankpins.

A phonic wheel is fitted at the rear for the rpm sensor.

ENGINE FLYWHEEL

Made from cast iron with a ring gear in tempered steel, it is suitably balanced.

1.8

CRANKSHAFT

This is steel and rests on five main bearings. Shaft axial clearance is governed by two half-rings housed in the middle main bearing.

Eight counterweights balance the crankshaft rotary masses with precision.

A set of channels runs along the length of the crankshaft to lubricate the main journals and crankpins.

FLYWHEEL

Made from cast iron with a ring gear in tempered steel, it is suitably balanced.

There is a phonic wheel and the engine rpm sensor ring between the flywheel and the crankshaft rear flange.