Water Pump Cleaning And Inspection - Suzuki XL7 2007 Service Manual

1F-51 Engine Cooling System:

Water Pump Cleaning and Inspection

Reference: "Water Pump Removal: ".
Cleaning Procedure
CAUTION
!
Do not immerse the water pump in solvent.
The solvent may enter the water pump's
permanently lubricated bearings and cause
premature bearing failure.
1. Remove the old gasket material from the water
pump sealing surfaces.
2. Clean all excess dirt and debris from the water pump
housing.
Inspection Procedure
1. 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.
2. 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)
3. 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.
4. 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)
5. Repair or replace the water pump as necessary.
Reference: "Water Pump Installation: ".