INSPECTION
INSPECTION |
Check the water pump bearing for smooth rotation.
Check the water pump pulley for abnormalities.
Using a dial gauge, measure the impeller runout in thrust direction while rotating the pulley.
“Thrust” runout limit:
0.5 mm (0.020 in)
Clearance between impeller and pump case:
Standard
0.5 — 0.7 mm (0.020 — 0.028 in)After water pump installation, check the pulley shaft for engine coolant leaks. If leaks are noted, replace the water pump assembly.