D439E Service Manual 2. Engine Mechanical System (D439E)
118
Specification
Item Specification
Cooling method Water cooling, forced circulation
Coolant capacity 20ℓ (includes engine, radiator and heater)
Type Volute pump
Water pump
Drive V-belt
V-belt Quantity 2EA
Type Wax-pellet, bottom bypass (installed with jiggle valve)
Thermostat
Valve opening temperature 82℃
Service Standards
Item
Nominal value
( [] indicates base
diameter)
Limit
Correction
and remarks
Fan rotation (Auto cool fan coupling) - More than 2~3 revs. Replace
Interference between pump
shaft and flange
[17] 0.08~0.10 mm Up to 2 times Replace
Gap between pump shaft
and impeller
[13] 0.03~0.06 mm Replace
Water pump
Pump case to impeller
installed dimension
20.8~21.7 mm Replace
Valve opening temperature 80~84℃ Replace
Thermostat
Valve lift / temperature Above 10 / 95℃ Replace
nominal 0.83~1.10 kg/cm
2
Replace
Pressure cap
opening
pressure
negative Below 0.05 kg/ cm
2
Replace
Radiator
Radiator check pressure 1.4 kg/cm
2
Replace
Reservoir tank inner pressure 0.5 kg/mm
2
Replace
Between alternator and
water pump
12~16 mm adjust
Between power steering
pump and crankshaft pulley
4~6 mm adjust
V-belt
deflection
Air-con compressor and
tension pulley
16~20 mm adjust
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