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Engine Cooling System - Cooling (H6DO - 3.6L DOHC): Specifications Subaru Legacy BM/BR

Cooling System (Mechanical) 4 illustrations

SPECIFICATION

Cooling systemElectric fan + Forced engine coolant circulation system
Total engine coolant capacityL (US qt, Imp qt)6.5 (6.9, 5.7)
Water pumpTypeCentrifugal impeller type
Discharge performanceDischarge rateL (US gal, Imp gal)/min240 (63.4, 52.8)
Pump speed - Discharge pressure4,956 RPM - 140 kPa (14.0 mAq)
Engine coolant temperature80°C (176°F)
Impeller diameterMm (in)66 (2.60)
Number of impeller blades8
Pump sprocket outer diameterMm (in)60.60 (2.39)
ThermostatTypeWax pellet type
Starting temperature to open80 - 84°C (176 - 183°F)
Fully opens95°C (203°F)
Valve liftMm (in)9.0 (0.354) or more
Valve boreMm (in)35 (1.38)
Radiator fanMotor inputMain fanW200
Sub fanW200
Fan diameter/BladeMain fan320 mm (12.6 in)/5
Sub fan320 mm (12.6 in)/7
RadiatorTypeDown flow, pressure type
Core dimensionsWidth x Height x ThicknessMm (in)689.8 x 349.2 x 16 (27.16 x 13.75 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 - -4.9 (-0.01 - -0.05, -0.1 - -0.7)
FinsCorrugated fin type
Reservoir tankCapacityL (US qt, Imp qt)0.45 (0.48, 0.40)

GENERAL SPECIFICATION CHART

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 CHART

Scheme 77

Scheme 77: WATER PUMP AND WATER PIPE

Scheme 78

Scheme 78: ENGINE COOLANT TEMPERATURE SENSOR AND HEATER HOSE

Scheme 79

Scheme 79: RADIATOR AND RADIATOR FAN

Scheme 80

Scheme 80
  1. Radiator
  2. Radiator fan

See also:
PROCEDURE