ENGINE COOLING -
General Information/
Service Specifications/Lubricant/Sealants
14-2
GENERAL INFORMATION
14100010217
The cooling system is designed to keep every part
of the engine at appropriate temperature in
whatever condition the engine may be operated.
Thecoolingmethodisofthewater-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 or drive belt from t he
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 4G6 175,800
6A1 200,900
4D6 213,500
A/T oil cooler Performance kJ/h 4G6 5,700
6A1, 4D6 7,100
SERVICE SPECIFICATIONS
14100030091
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
14100040148
Items Quantity L
HIGH QUALITY ETHYLENE GLYCOL 4G6, 6A1 6
ANTIFREEZE COOLANT
4D6 8
SEALANTS
14100050172
Items Specified sealant Remarks
Cylinder block drain plug 3M Nut Locking Part No. 4171 or equivalent Drying sealant
Water pump <6A1>,
Thermostat case assembly <4G6, 4D6>,
Water outlet fitting <4D6>
Mitsubishi Genuine Parts No. MD970389 or
equivalent
Semi-drying sealant
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