Engine Maintenance
82
Engine Cooling System
The engine employs a closed, circulating type,
pressurized cooling system. Correct engine
temperatures are controlled and maintained by a
radiator, fan and thermostat. The coolant is
circulated through the system by a belt-driven
centrifugal pump. The pump draws the coolant
from the side of the radiator (large header),
circulates it through the cylinder block and head,
then back to the radiator. A thermostat mounted in
the water outlet from the cylinder head to the
radiator automatically maintains coolant
temperature within the specified temperature
range.
1. Engine 5. Expansion Tank
2. High H
2
O Temperature Switch 6. Coolant Level Indicator
3. Fuel Heater Option 7. Accumulator
4. Thermostat Housing
Figure 37: Engine Cooling System Components
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