WATER PUMP AND THERMOSTAT

Description 1088C

2.0 JTS

CONSTRUCTION FEATURES

Water pump

It is the centrifugal vane type, with an aluminium alloy pump casing and phenolic resin impeller.

Secured to the engine block and driven directly by the timing belt.

Thermostat

Mounted on the rear of the cylinder head, its function is to keep the engine at the optimum temperature:

• at a temperature of < 83 ± 2°C, the thermostatic valve (closed) diverts the coolant directly to the pump,
• at a temperature of > 83 ± 2°C, the thermostatic valve (open) conveys coolant to the radiator.

Mounted on the thermostat, there is the coolant temperature sensor connected to the fuel injection control unit

1056F DIRECT PETROL INJECTION SYSTEM

1.8 T.SPARK

Water pump

It is the centrifugal vane type, with an aluminium alloy pump casing and phenolic resin impeller.

Secured to the engine block and driven directly by the timing belt.

Thermostat

Mounted on the rear of the cylinder head, its function is to keep the engine at the optimum temperature:

• – at a temperature of < 83 ± 2 ° C the (closed) thermostatic valve directs the coolant directly to the pump
• – at a temperature of > 83 ± 2 ° C the (open) thermostatic valve directs the coolant to the radiator.

Mounted on the thermostat, there is the coolant temperature sensor connected to the fuel injection control unit

Characteristic of working principle 1056 PETROL INJECTION SYSTEM

3.2 V6

CONSTRUCTION FEATURES

Water pump

It is the centrifugal vane type, with an aluminium alloy pump casing and phenolic resin impeller.

It is mounted on the cylinder block/crankcase and driven by the crankshaft via a Poly-V belt.

Thermostat

Fitted on the gearbox side of the cylinder head, its function is to keep the engine at optimum working temperature:

• at a temperature of < 87 ± 2°C the (closed) thermostatic valve directs the coolant directly towards the pump;
• at a temperature of > 87 ± 2°C the (open) thermostatic valve directs the coolant towards the radiator.

Mounted on the thermostat, there is the coolant temperature sensor connected to the fuel injection control unit.

1.9 JTD 16V

COMPONENT DESCRIPTION

WATER PUMP

It is the centrifugal vane type, with an aluminium alloy pump casing and phenolic resin impeller.

Secured to the engine block and driven directly by the timing belt.

THERMOSTAT

Mounted on the rear of the cylinder head, its function is to keep the engine at the optimum temperature:

• at a temperature of < 80 ± 2°C the (closed) thermostatic valve directs the coolant directly to the pump
• at a temperature of > 80 ± 2°C the (open) thermostatic valve directs the coolant to the radiator.

The engine coolant temperature sensor, connected to the injection control unit and the instrument panel, is fitted on the thermostat

Characteristic of working principle 1060G PRESSURE PUMP ELECTRIC CONTROL