4-43. WATER PUMP REPAIR (Cont)
Compressed air used for cleaning
purposes will not exceed 30 PSI.
Use only with effective chip guarding
and personal protective equipment
(goggles/shield, gloves, etc.).
Dry all parts with compressed air.
Inspect pump impeller for cracks, burrs, or
damage. If ceramic insert is damaged,
replace pump impeller.
Inspect housing and cover for cracks,
wear, or damage.
Inspect shaft for scores, discoloration, or
Inspect inner and outer bearings for pits,
discoloration, or damage.
(1) Lubricate bearings (12 and 13) inner
surfaces and shaft (8) bearing surfaces
with engine oil.
When installing bearings, support inner
race only or damage to bearing may result.
Using installer (18), press inner bearing
(12) and outer bearing (13) onto shaft (8).
Support pump body (4) with cover side
down, and press bearings and shaft into
Install lock ring (11) in groove of shaft (8).
Using installer (18), press gear (5) onto
impeller end of shaft (8) until gear is flush
with end of shaft.
Lubricate new oil seal (14) and shaft (8)
seal surface with engine oil.