Inspection Procedure

Fig 1: Identifying Water Pump Hub And Water Pump Bolt Holes

Courtesy of SUZUKI OF AMERICA CORP.

Rotate the water pump hub (1). The water pump hub and impeller should turn straight and smoothly. If the hub wobbles, is noisy, or feels rough when rotated, replace the water pump.
Inspect the exterior of the water pump for the following:
- Damage to the water pump hub bolt threads (2) for the water pump pulley
- Damage to the water pump bolt holes (3)
  
  Fig 2: Identifying Water Pump Shaft And Weep Hole Reservoir
  Courtesy of SUZUKI OF AMERICA CORP.
Examine the water pump shaft (1) and the weep hole reservoir (2) in the water pump body for signs of leakage. If coolant leakage is evident, replace the water pump.

Fig 3: Identifying Water Pump Gasket Sealing Surface And Coolant Passages
Courtesy of SUZUKI OF AMERICA CORP.
Inspect the interior of the water pump for the following:
- Damage to the water pump gasket sealing surface (1)
- Damage, corrosion or restrictions to the water pump impeller (2)
- Damage, corrosion or restrictions to the coolant passages (3)
Repair or replace the water pump as necessary.
Reference: WATER PUMP INSTALLATION