WATER PUMP

It is the centrifugal type with vanes secured to the crankcase and operated directly through the timing belt.

THERMOSTAT

Fitted to the rear of the cylinder head, it performs the function of maintaining the engine at optimum temperature:

- at a temperature of < 80 +/- 2 °C the (closed) thermostatic valve directs the fluid directly to the pump

- at a temperature of > 80 +/- 2 °C the (open) thermostatic valve directs the fluid to the radiator.

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