3232862 - 1088C water pump and thermostat

Water pump

It is of the centrifugal vane type, with 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 (  See subassembly 1056   PETROL INJECTION SYSTEM )