This is centrifugal, vane type with an aluminium alloy pump casing 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 temperature < 83 +/- 2°C the thermostat valve (closed) deviates fluid directly toward the pump.
with temperature > 83 +/- 2°C the thermostat valve (open) deviates coolant directly toward the radiator.
The engine coolant temperature sensor fitted to the thermostat is connected to the injection control unit and control panel [DF 1056B].