4. COOLING SYSTEM
4-8
WATER PUMP SHAFT AND SEALS
Shaft/Seal removal
NOTE: It is not required to split crankcase to replace the
water pump shaft and seals, but engine removal is
necessary.
Drain engine oil.
Remove engine from vehicle. Refer to ENGINE
REMOVAL section.
Detach gearbox from engine.
Remove engine drive shaft and engine PTO cover.
Remove water pump housing and impeller. See
procedures in this section.
Pull out water pump gear to disengage the inner drive
gear.
1. water pump gear
2. Inner drive gear
Sharply strike water pump shaft out with a plastic
hammer.
Pull out water pump shaft through the engine drive shaft
opening.
NOTE: Pay attention to hold thrust washer to prevent it
from falling in crankcase.
1. Thrust water here
CAUTION: If thrust washer is not on water pump shaft,
use a magnet to retrieve it inside crankcase.
Using appropriate pliers remove and discard the
retaining ring securing water pump gear on water pump
shaft.
To remove plastic gear from water pump shaft place
gear between your fingers and briskly tap shaft end.
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