630197 - DESCRIPTION OF COMPONENTS

WATER PUMP

Specifications

Type

This is a centrifugal vane pump with an aluminium alloy casng and phenolic resin impeller.Secured to the engine crankcase and driven directly by timing belt.

THERMOSTAT

Operation

General remarks

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

  • with the temperature %lt; 80 ± 2°C the termostatic valve (closed) directs the fluid directly to the pump
  • with the temperature %gt 80 ± 2'C the thermostatic valve (open) directs the coolant towards the radiator.
The engine coolant temperature sensor is fitted on the thermostat and is connected to the injection control unit and the instrument panel.    (See assembly ) 1060G