Service Manual

COOLING SYSTEM

WATER PUMP

Inspecting Water Pump

Inspect water pump for signs of leaking at vent holes,

mounting surfaces and water pump pulley shaft,

Fig. 6.

1. Remove V-belt, alternator adjustment bracket, fan

(if equipped) and water pump pulley.

a. Replace pulley if bent or damaged.

Fig. 6 – Inspecting Water Pump

VENT HOLES

2. Check water pump bearings by rotating pulley

flange by hand, Fig. 7.

a. Make sure pulley rotates smoothly.

If water pump shows evidence of leaking or bearings

are rough, replace the water pump.

NOTE: Most water pump and cooling system

failures result from using straight water as

a coolant. Without water pump lubricant

and corrosion inhibitors, the water pump

will fail prematurely.

Fig. 7 – Checking Bearings

Removing Water Pump

Drain engine coolant.

1. Disconnect radiator hoses, Fig. 8.

Fig. 8 – Remove Hoses

Remove the following parts, Fig. 9.

2. Temperature gauge wire (if equipped).

3. Coolant outlet.

4. Coolant inlet.

5. Water pump.

Clean all traces of gasket material from mounting

surfaces and inspect mounting surfaces for damage.

Fig. 9 – Removing Water Pump