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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
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