Polaris RZR 900 2017 Service Manual page 148

ENGINE / COOLING SYSTEM
4. Remove the bolt and washer retaining the water
pump impeller to the shaft. Inspect the impeller vanes
and water pump housing for damage.
NOTICE
The water pump impeller bolt
(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.
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. Do not damage
the water pump shaft bearing surface.
8. Inspect the water pump shaft bore for damage.
Replace water pump housing if necessary.
9. Clean and inspect water pump shaft for excessive
wear or damage. Replace water pump housing if
necessary as shaft cannot be purchased separately.
3.14
t
is left hand threaded
9930588 R02 - 2017-2020 RZR 900 900/S 900/S4 1000/S 1000/S4 Service Manual
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 a soft jaw
vice. Install a NEW mechanical seal into the water
pump housing using special tool PU-50564. Press the
new mechanical seal in until it is flush with the
housing.
14. Rotate the water pump shaft after seal installation to
verify free movement.
15. Place impeller onto the water pump shaft.
16. Apply Loctite® 204™ to the threads of the impeller
bolt. Install washer and impeller bolt and torque to
specification.
TORQUE
Water Pump Impeller Bolt:
7 ft-lb (10 Nm) (Apply Loctite® 204™ to bolt
threads)
17. Clean water pump cover and housing gasket
surfaces.
18. Install a new water pump cover gasket.
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