Thermostat; Fan; Water Pump - Arctic Cat ROV 2013 Service Manual

Thermostat

REMOVING
1. Drain approximately one quart of coolant from the
cooling system.
2. Remove the two cap screws securing the thermostat
housing to the cylinder head. Account for a thermo-
stat with seal.
INSPECTING
 NOTE: Whenever a part is worn excessively, cracked,
or damaged in any way, replacement is necessary.
1. Inspect the thermostat for corrosion, wear, or spring
damage.
2. Using the following procedure, inspect the thermo-
stat for proper operation.
A. Suspend the thermostat in a container filled with
water.
B. Heat the water and monitor the temperature with a
thermometer.
C. The thermostat should start to open at 71.0-86.0°
C (160-187° F).
D. If the thermostat does not open, it must be
replaced.
3. Inspect all coolant hoses, connections, and clamps
for deterioration, cracks, and wear.
NOTE: All coolant hoses and clamps should be
replaced every four years or 4000 miles.
INSTALLING
1. Place the thermostat with seal into the thermostat
housing; then secure the thermostat housing to the
cylinder head with the two cap screws.
CAUTION
When installing the thermostat, make sure the bleed
holes are straight up and down or air will remain
trapped causing engine damage due to overheating.
72
2. Fill the cooling system with the recommended
amount of antifreeze. Check for leakage.
REMOVING
1. Remove the radiator (see Radiator in this section).
2. Remove the fan assembly from the radiator.
INSTALLING
1. Position the fan assembly on the radiator; then secure
with existing hardware.
NOTE: The fan wiring must be in the upper-right
position.
2. Install the radiator (see Radiator in this section).
 NOTE: The water pump is not a serviceable com-
ponent. If the pump is defective or if the mechani-
cal seal is leaking (coolant dripping from the
discharge hole), the water pump must be replaced.
REMOVING
1. Remove the radiator cap; then remove the water
pump coolant drain plug and drain the coolant.
2. Drain the oil from the engine/transmission.
3. Remove the seats and center console; then remove
the right-side seat-base.
4. Loosen the coolant hose clamps and slide the clamps
away from the hose ends.
PR281A

Fan

Water Pump

PR122A