Water Pump: Inspection
WARNING: This page is about a different car, the 2006 Subaru Outback and 2006 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.
- Check the water pump bearing for smooth rotation.
- Check the water pump pulley for abnormalities.
- Make sure the impeller is not deformed or damaged.
- Inspect the clearance between impeller and pump case.
Clearance between impeller and pump case:
Standard
0.4 - 1.6 mm (0.016 - 0.063 in)
- After water pump installation, check pulley shaft for engine coolant leaks. If leaks are noted, replace the water pump assembly.