Removing
Location of hose clamps
Disconnecting the bypass hose and removing the thermostat housing
Fastening the lower radiator hose and heater return hose to the water pump
Arrangement of the left bolts of fastening of the water pump
Removing the water pump from the engine
1. Remove the ground wire from the battery and drain the coolant from the cooling system.
2. Remove the radiator fan and auxiliary drive belt pulley from the water pump.
3. Remove the thermostat, then unscrew the thermostat housing from the cylinder head. Loosen the clamps and disconnect the outlet hose from the water pump and remove the thermostat housing from the engine (see fig. Location of the outlet hose clamps, Disconnecting the bypass hose and removing the thermostat cover).
4. Loosen clamps and disconnect lower radiator tank hose and heater return hose from water pump (see fig. Fastening the lower radiator hose and heater return hose to the water pump).
5. Loosen the clamp and disconnect the auxiliary hose from the left side of the water pump.
6. On early models with multiple auxiliary drive belts, remove the solenoid clutch from the water pump shaft.
7. On late models with one auxiliary drive belt, disconnect the electrical connector from the electromagnetic clutch and release the wires from the mounting brackets.
8. Remove the alternator and unscrew the alternator mounting bracket from the water pump.
9. Unscrew the bolts and remove the water pump from the engine (see fig. The location of the left bolts of the water pump, Removing the water pump from the engine). Note the location of the bolts as they are of different lengths.
Installation
Installing a new water pump gasket
1. Using care, clean the mating surfaces of the water pump and cylinder block from traces of the old gasket. Clean the mating surfaces of the thermostat housing and cylinder head in the same way.
2. Install the water pump with a new gasket in the reverse order of removal (see fig. Installing a new water pump gasket). Install and adjust the tension of the auxiliary drive belts. Pour coolant into the cooling system.