DESCRIPTION OF COMPONENTS

3.0 V6, 3.2 V6

ENGINE CRANKCASE

The crankcase is in light aluminium alloy and silicon with high mechanical strength and thermal conductivity.

The crankshaft rests on four main bearings.

Special channels in the crankcase walls carry coolant and lubrication oil.

Jets at the cylinder bases spray oil to cool the pistons.

2.4 20V

ENGINE CRANKCASE

Specifications

Function

This is the main structural part of the engine.

It is designed to house and support all the crankshaft associated components.

Type

The crankcase is made from cast iron with a high mechanical resistance.

The crankshaft is supported by means of six main journals.

The cylinders are located directly in the cylinder block and are available in three grades plus an oversize

The crankcase also houses the counter-balance shaft which is supported by means of a centre bush and a ball bearing at the front and the rear.

Special ducts in the crankcase walls allow the flow of coolant and lubrication oil.

The lower part of each cylinder contains a jet which sprays oil on the piston crown to lubricate/cool it.

• 1 Main journals
• 2 Jets
• 3 Cylinder block/crankcase

2.0 TB

ENGINE CRANKCASE

SPECIFICATIONS

FUNCTION

This is the main structural part of the engine.

Its purpose is to contain and support all the crankshaft components.

TYPE

The crankcase is made of of high mechanical strength cast iron.

The crankshaft is supported by six main bearings.

The cylinders are formed directly in the crankcase and sorted into three size categories plus one oversize.

The crankcase also houses a counter-rotating shaft that is mounted on a central bush and a ball bearing at front and rear.

Special channels in the crankcase walls carry coolant and lubrication fluid.

The lower part of each cylinder contains an oil jet that sprays lubricating/cooling oil on the piston crown.

• 1 Main bearings.
• 2 Jets.
• 3 Crankcase.

2.4 JTD 10V

ENGINE CRANKCASE

Specifications

Function

This is the main structural part of the engine.

Its purpose is to contain and support all the crankshaft components.

Type

The crankcase is in ductile cast iron with closed-deck integral cylinder liners.

The crankshaft is supported by six main bearings.

Special channels in the crankcase walls carry coolant and lubrication fluid.

PISTON COOLING JETS

Specifications

Function

Jets installed in the lower part of the crankcase spray engine oil to cool the pistons and lubricate the pin.

2.4 JTD 20V

ENGINE CRANKCASE

Specifications

Function

This is the main structural part of the engine.

Its purpose is to contain and support all the crankshaft components.

Type

The crankcase is in ductile cast iron with closed-deck integral cylinder liners.

The crankshaft is supported by six main bearings.

Special channels in the crankcase walls carry coolant and lubrication fluid.

PISTON COOLING JETS

Specifications

Function

Jets installed in the lower part of the crankcase spray engine oil to cool the pistons and lubricate the pin.