198003010 - INTRODUCTION - WATER PUMP AND THERMOSTAT

WATER PUMP

It is the centrifugal type with vanes, and is 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:- with the temperature < 88 +/- 2 °C, the thermostat valve (closed) directs fluid directly toward the pump- with the temperature > 88+/- 2 °C, the thermostat valve (open) directs coolant directly toward the radiator.The engine coolant temperature sensor is fitted on the thermostat and is connected to the injection control unit.