Water Pump: Service and Repair

WATER PUMP





Removal and Installation

CAUTION:
^ When removing water pump, be careful not to get engine coolant on drive belts.
^ Water pump can not be disassembled and should be replaced as a unit.
^ After installing water pump, connect hose and clamp securely, then check for leaks using radiator cap tester (commercial service tool) and radiator cap tester adapter [SST: EG17650301 (J33984-A)].

REMOVAL
1. Drain engine coolant from drain plugs on radiator and both side of cylinder block.

CAUTION:
^ Perform this step when engine is cold.
^ Do not spill engine coolant on drive belts.

2. Remove following parts:
^ Engine front undercover
^ Air duct (inlet).
^ Alternator, water pump and A/C compressor belt.
3. Remove fan coupling with cooling fan, and then water pump pulley
4. Remove water pump.
^ Engine coolant will leak from cylinder block, so have a receptacle ready under vehicle.

CAUTION:
^ Handle the water pump vane so that it does not contact any other parts.
^ Do not disassemble water pump.

INSPECTION AFTER REMOVAL





^ Visually check that there is no significant dirt or rusting on water pump body and vane.
^ Make sure there is no looseness in vane shaft, and that it turns smoothly when rotated by hand.
^ If anything is found, replace water pump.

INSTALLATION
Install in the reverse order of removal.

INSPECTION AFTER INSTALLATION
^ Check for leaks of engine coolant using radiator cap tester adapter [SST: EG17650301 (J-33984-A)] and radiator cap tester (commercial service tool).
^ Start and warm up engine. Visually check if there is no leaks of engine coolant.