Liquid Cooling System - Arctic Cat 660 cc Service Manual

3. Insert a wooden pry bar (such as a hammer handle)
between the engine and the alternator, pry the
alternator away from the engine, and tighten the
accessory belt.
4. When the accessory belt is tensioned properly (see
Checking Tension in this sub-section), tighten the
adjustment screw (A) to 2.2 kg-m (16 ft-lb).
5. Tighten the pivot cap screw (B) to 5.1 kg-m (37 ft-
lb).
6. Place the belt guard into position and secure with
the cap screws.
Liquid Cooling
The liquid cooling system consists of heat exchangers,
water pump, and thermostat. The system should be
inspected for leaks or damage whenever an overheat-
ing problem is experienced.
DRAINING COOLING SYSTEM
1. Place a drain pan under the right-side belly pan
and position the pan in front of the chain case.
2. Locate and disconnect the air silencer drain hose
from the fitting at the bottom of the belly pan in
front of the chain case; then cut the cable tie that
secures the coolant drain hose to the engine
coolant hose on the timing cover side of the engine
compartment.
3. Using a suitable clamping device, pinch off the
coolant drain hose and remove the drain plug.
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3-6
System
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4. Using a length of 1/2 in. I.D. hose, slide it over the
end of the coolant drain hose; then attach the other
end to the air silencer drain hose fitting located in
the bottom of the belly pan.
5. Remove the radiator cap and install non-
pressurized Radiator Cap (p/n 0644-156).
AO175
6. Apply 5-8 psi to the coolant system through the
coolant overflow tube and continue until the
coolant stops draining from the system.
7. Install the drain plug, remove clamping device,
and connect and secure the air silencer drain hose.
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AO176
AO177
AO178
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