INTRODUCTION - ENGINE FLYWHEEL

1.4 16v

CONSTRUCTION SPECIFICATIONS

Made from cast iron with a steel ring gear.

The flywheel is fastened to the crankshaft by means of a flange with bolts.

1.9 JTD 8v, 1.9 JTD 16v

CONSTRUCTION SPECIFICATIONS

Dual mass, DVA (dual mass vibration-damping flywheel), one mass integral with the crankshaft and the other on the gearbox mainshaft with an interposed flexible torsional damping system.

The resonance points which, on the conventional system (rigid flywheel and dampened disc) are found at between 800 and 2200 rpm, have been moved to lower rotation speeds, outside of the operation range, thereby allowing improved damping of torsional vibrations and a reduction in noise.

The clutch engagement mechanism, located between the dual flywheel and gearbox, consists of a rigid plate (unsprung) that improves gear manoeuvrability due to its reduced inertia.

1 - Crankshaft

2 - Mass integral with the crankshaft

3 - Mass integral with the gearbox mainshaft

4 - Flexible torsional damping system

5 - Clutch plate

6 - Thrust spring

7 - Thrust bearing

8 - Gearbox mainshaft

9 - Ring gear

1.4 16v TJet

CONSTRUCTION SPECIFICATIONS

The flywheel is the dual mass flywheel or DVA for improved damping of torsional vibrations and a reduction in noise.

The flywheel consists of:

- main flywheel made from steel;

- main flywheel cover made from steel;

- secondary flywheel made from cast iron with the clutch plate support plane;

- variable load internal springs covered in special grease.

The ring gear where the starter motor pinion engages is fitted on the main flywheel.