Removal/refitting
- Make
- Alfa Romeo
- Model
- 155 Factory Service Manual
- Year
- 1992–1998
- Section
- Water pump › Removal/refitting
The water pump is of the centrifugal blade type.
The pump body is made of aluminium alloy and the impeller of phenolic resin.
The pump is fixed to the engine block and actuated through a Poly-V drive belt by the crankshaft. A gasket seals the joint between the engine block and the pump.
The water pump operates constantly thus guaranteeing the continual circulation of the coolant.
REMOVAL/REFITTING
- For the removal/refitting of the water pump refer to GROUP 01.
CHECKS AND INSPECTIONS
- Check that the pump body and impeller are in good condition and that there are no signs of oxidation or corrosion.
- Check that the clearance between the pump body and the impeller is within the prescribed limits.
- Check that the front gasket of the pump is in good condition and without leaks. NOTE: small leaks from the drainage hole of the pump are normal;
- check that the bearing does not show signs of wearing on the races, balls or rollers:
If any of these defects are detected, replace the entire pump.
Parts & tools for this job For 1992 Alfa Romeo 155
- FLUIDCoolantSearch: Alfa Romeo coolant antifreeze
- PARTThermostatSearch: Alfa Romeo 155 1992 thermostat
- TOOLCooling system pressure testerSearch: cooling system pressure tester
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