Home/Subaru/Outback/Subaru Outback BR (2009-2012)/Repair manual/Cooling System (Mechanical)/Engine Cooling System - Cooling (H4SO - 2.5L SOHC): Specifi…
Contents Wiring diagrams Section: Cooling System (Mechanical) All sections

Engine Cooling System - Cooling (H4SO - 2.5L SOHC): Specifications Subaru Outback BR

Cooling System (Mechanical) 2 illustrations

SPECIFICATION

Cooling systemElectric fan + Forced engine coolant circulation system
Total engine coolant capacityL (US qt, lmp qt)Approx. 6.5 (6.9, 5.7)
Water pumpTypeCentrifugal impeller type
Discharge performanceDischarge rateL (US gal, lmp gal)/min.200 (52.8, 44.0)
Pump speed - Discharge pressure6,000 RPM - 225.4 kPa (23 mAq)
Engine coolant temperature80°C (176°F)
Impeller diameterMm (in)76 (2.99)
Number of impeller vanes8
Pump pulley diameterMm (in)60 (2.36)
Clearance between impeller and caseMm (in)Standard0.5 - 1.5 (0.020 - 0.060)
ThermostatTypeWax pellet type
Starting temperature to open86 - 90°C (187 - 194°F)
Fully opens95°C (203°F)
Valve liftMm (in)9.0 (0.354) or more
Valve boreMm (in)35 (1.38)
Radiator fanMotor inputMain fanW90
Sub fanW90
Fan diameter/BladeMain fan300 mm (11.81 in)/4
Sub fan300 mm (11.81 in)/5
RadiatorTypeDown flow, pressure type
Core dimensionsWidth x Height x ThicknessMm (in)687.4 x 340 x 16 (27.06 x 13.39 x 0.63)
Pressure range in which cap valve is openKPa (kg/cm 2 , psi)Positive pressure sideStandard93 - 123 (0.95 - 1.25, 14 - 18)
Service limit83 (0.85,12)
Negative pressure sideStandard1.0 to -4.9 or less (-0.01 - -0.05, -0.1- -0.7)
FinsCorrugated fin type
Reservoir tankCapacityL (US qt, lmp qt)0.45 (0.48, 0.40)

GENERAL SPECIFICATION

Recommended materialsItem numberAlternative
CoolantSUBARU Super Coolant (Concentrated type)
SUBARU Super Coolant (Diluted type)K0670Y0000
Water for dilutionDistilled waterSoft water or tap water
Cooling system protecting agentCooling system conditionerSOA345001

GENERAL SPECIFICATION

Scheme 1

Scheme 1: WATER PUMP

Tightening torque: N.m (kgf-m, ft-lb)

T1: First 12 (1.2, 8.9) Second 12 (1.2, 8.9)

T2: 12 (1.2,8.9)

Scheme 2

Scheme 2: RADIATOR & RADIATOR FAN

Tightening torque: N.m (kgf-m, ft-lb)

T1: 5 (0.5, 3.7)

T2: 7.5 (0.8, 5.5)

T3: 12 (1.2,8.9)