GENERAL INFORMATION
ENGINE COOLING
14-2
GENERAL INFORMATION
M1141000100456
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 circu
-
lation type in which the water pump pressurizes cool-
ant and circulates it throughout the engine. If the
engine 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 drive belt from the crankshaft. The radi
-
ator is the corrugated fin, down flow type. The cool-
ing fan is controlled by the fan controller and
engine-ECU depend on driving conditions.
Item Specification
Radiator Performance kJ/h 216,700
SERVICE SPECIFICATIONS
M1141000300483
Item Standard value Limit
Radiator cap pressure kPa 93 − 123 Minimum 83
Range of coolant antifreeze concentration of radiator % 30 − 60 -
Fan controller input voltage V Ignition switch: "ON" Battery positive voltage -
Fan controller output voltage V A/C switch: "OFF" 1 or less -
A/C switch: "ON" Repeat steps 1) and 2).
1) 8.2 ± 2.6
2) Battery positive voltage
± 2.6
-
Thermostat Valve opening temperature of thermostat °C 80 ± 1.5 -
Full-opening temperature of thermostat °C 93 -
Valve lift mm 9.5 or more -
LUBRICANT
M1141000400424
Item Specified lubricant Quantity L
Engine coolant (including
reserve tank)
DIA QUEEN SUPER LONG LIFE COOLANT or equivalent 6.0
SEALANT
M1141000500658
Item Specified sealant Remark
Cylinder block drain plug 3M Nut Locking Part No.4171 or equivalent Drying sealant
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