3
9926813 R04 - 2013-2016 RZR 570 Service Manual
© Copyright Polaris Industries Inc.
3.21
THERMOSTAT REPLACEMENT
1. Remove the hood from the front cab.
WARNING
The cooling system is under pressure and serious
burns may result. Allow the engine to cool before
servicing.
2. Remove the pressure cap to relieve any system
pressure (see Chapter 3 – Pressure Cap Test, page
3.19).
3. Drain coolant to a level below the thermostat
housing.
4. Remove the cargo box access panel.
5. Remove the spark plug wire from the engine.
6. Remove the two bolts
q
retaining the thermostat
cover.
7. Lift the cover from the engine and remove the
thermostat.
8. Reverse this procedure for installation. Replace
thermostat seal if worn or damaged. Torque
thermostat cover bolts to specification.
TORQUE
Thermostat Cover Bolts:
7 ft-lbs (10 Nm)
9. Be sure to properly fill and bleed cooling system as
outlined in this chapter.
WATER PUMP COVER AND IMPELLER
SERVICE
NOTE
The water pump cover, gasket and impeller can be
serviced with the stator cover installed on the engine.
1. Allow engine and cooling system to completely cool.
CAUTION
Be sure the engine has cooled and no pressure is built
up in the cooling system before removing the pressure
cap. The coolant may be hot and could cause severe
injury or burns.
2. Remove both seats and the engine service panel.
3. Disconnect the (-) negative battery cable.
4. Remove all debris and thoroughly clean water pump
area and right-hand side of engine block.
5. Remove the hood.
6. Remove the pressure cap from the filler neck.
7. Completely drain cooling system and engine as
outlined in this chapter.
8. Raise and safely support the vehicle. Remove the
right-hand rear wheel.
9. Remove the eight bolts
q
attaching the water pump
cover to the stator cover.
10. Remove the water pump cover
w
and water pump
cover gasket
e
. Discard the water pump gasket .
11. Using an 8mm socket, remove the water pump
impeller
r
.
NOTE
The water pump impeller uses reverse (LH) threads.
12. Inspect the water pump cover and impeller for
damage. Replace as necessary.
ENGINE / COOLING SYSTEM
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