Water Pump Service - Polaris RANGER XP 900 2018-2019 Service Manual

WATER PUMP SERVICE

NOTICE
The water pump cover gasket can be replaced while
the water pump housing is still installed in the engine.
1. Remove water pump assembly as outlined in this
chapter.
2. Remove the three bolts retaining water pump cover
to water pump housing. Discard cover gasket.
3. Place the water pump drive tab vertically into a soft
jaw vice.
4. Remove the bolt and washer retaining the water
pump impeller to the shaft. Inspect the impeller veins
and water pump housing for damage. Replace if
needed.
NOTICE
The water pump impeller bolt is left hand threaded
(reverse thread).
5. Remove impeller from water pump shaft.
6. Using an appropriate arbor press, properly support
the water pump housing and press out the water
pump shaft from the impeller side.
9929399 R01 - 2018-2019 RANGER XP/ CREW 900/1000 Service Manual
© Copyright Polaris Industries Inc.
ENGINE / COOLING / HVAC SYSTEM
7. Extract the mechanical seal and the oil seal from the
water pump housing.
NOTICE
A 5/32" (4 mm) diameter punch will fit in the lubrication
slot to aid in the removal of the oil seal. Be sure not to
damage the water pump shaft bearing surface.
8. Inspect the water pump shaft bore for excessive
wear or damage. Replace water pump housing
assembly if necessary.
9. Clean and inspect water pump shaft for excessive
wear or damage. Replace water pump housing
assembly if necessary, as shaft can not be
purchased separately.
10. Thoroughly clean mechanical seal and oil seal bores.
11. Install a NEW oil seal into the water pump housing
until fully seated.
12. Fully install the water pump shaft and two washers
into the housing.
13. Place water pump drive tab vertically into soft jaw
vice as previously shown in this procedure.
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