Inspecting and Replacing Coolant Pump

To inspect the coolant pump, first remove the V-belt. See LUBRICATION AND MAINTENANCE. Firmly grasp the coolant pump pulley and check for play in all directions. Rotate the pulley and check that the shaft turns smoothly. It should rotate smoothly. Inspect the pump for leaks. An occasional drop of coolant from the pump shaft is acceptable. A larger leak or a shaft that is excessively loose or noisy, indicating a worn bushing, means that the pump is faulty and should be replaced. Also, replace the V-belt if it is worn or damaged.

To remove coolant pump:

1.	Drain the cooling system. See 4.1 Coolant and Cooling System Hoses. Remove the V-belt. See LUBRICATION AND MAINTENANCE.

2.	Remove the nut and T-bolt that fastens the camshaft drive belt cover to the coolant pump. Disconnect the remaining hoses from the pump housing.

3.	Remove pump and housing assembly. Four bolts hold the coolant assembly to the engine.

4.	Disassemble the pump and housing assembly. Remove the pulley(s) from the coolant pump shaft. Remove the seven bolts and washers and separate the pump from the housing.

Assembly is the reverse of disassembly. Use a new gasket between the coolant pump and housing. Tighten the seven bolts evenly until all are torqued to 10 Nm (87 in. lb.). Install the pulley(s). Torque the bolts to 20 Nm (15 ft. lb.).

To install coolant pump:

1.	Clean the surface of the engine block where it will be contacted by the pump housing and the O-ring. Install a new O-ring in the recess that surrounds the water outlet.