3232862 - 1088C water pump and thermostat

CONSTRUCTION FEATURES

Water pump

It is the centrifugal vane type, with an aluminium alloy pump casing and phenolic resin impeller.It is mounted on the cylinder block/crankcase and driven by the crankshaft via a Poly-V belt.

Thermostat

Fitted on the gearbox side of the cylinder head, its function is to keep the engine at optimum working temperature:

  • at a temperature of < 87 ± 2° C the (closed) thermostatic valve directs the coolant directly towards the pump;
  • at a temperature of > 87 ± 2° C the (open) thermostatic valve directs the coolant towards the radiator.
Mounted on the thermostat, there is the coolant temperature sensor connected to the fuel injection control unit.