ENGINE COOLING ±
General Information/
Service Specifications/Lubricant
14-2
GENERAL INFORMATION
The cooling system is designed to keep every part
of the engine at appropriate temperature in whatever
condition the engine may be operated.
The cooling method is of the water-cooled, pressure
forced circulation type in which the water pump
pressurizes coolant and circulates it throughout the
engine. If the coolant temperature exceeds the
prescribed temperature, the thermostat opens to
circulate the coolant through the radiator as well
so that the heat absorbed by the coolant may be
radiated into the air.
The water pump is of the centrifugal type and is
driven by the timing belt from the crankshaft.
The radiator is the corrugated fin, down flow type
and is cooled by the electrical radiator fan.
The cooling fans are controlled by a fan controller
and the engine-ECU depending on driving
conditions.
Items Specifications
Radiator Performance kJ/h
M/T 152,791
A/T 169,535
A/T oil cooler Performance kJ/h 5,652
NOTE
*: Vehicles with optional radiator
SERVICE SPECIFICATIONS
Items Standard value Limit
Radiator cap opening pressure kPa 74 ± 103 64
Range of coolant antifreeze concentration of radiator % 30 ± 60 ±
Thermostat
Valve opening temperature of thermostat _C 82$ 1.5 ±
Full-opening temperature of thermostat _C 95 ±
Valve lift (at 95_C) mm 8.5 or more ±
LUBRICANT
Items Quantity ȏ
MITSUBISHI GENUINE COOLANT or equivalent 6
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