COOLING(H4DOTC) > General Description

SPECIFICATION

Cooling system

Electric fan + Forced engine coolant circulation system

Total engine coolant capacity

L (US qt, Imp qt)

AT: approx. 8.0 (8.5, 7.0)

MT: approx. 8.1 (8.6, 7.1)

Water pump

Type

Centrifugal impeller type

Discharge performance I

Discharge rate

L (US gal, Imp gal) /min

20 (5.3, 4.4)

Pump speed — Discharge pressure

760 rpm — 2.9 kPa (0.3 mAq)

Engine coolant temperature

80°C (176°F)

Discharge performance II

Discharge rate

L (US gal, Imp gal) /min

100 (26.4, 22.0)

Pump speed — Discharge pressure

3,000 rpm — 49.0 kPa (5.0 mAq)

Engine coolant temperature

80°C (176°F)

Discharge performance III

Discharge rate

L (US gal, Imp gal) /min

200 (52.8, 44.0)

Pump speed — Discharge pressure

6,000 rpm — 225.4 kPa (23.0 mAq)

Engine coolant temperature

80°C (176°F)

Impeller diameter

mm (in)

76 (2.99)

Number of impeller vanes

8

Pump pulley diameter

mm (in)

60 (2.36)

Clearance between impeller and case

Standard

mm (in)

0.5 — 1.5 (0.020 — 0.059)

Thermostat

Type

Wax pellet type

Opening start temperature

82 — 86°C (180 — 187°F)

Fully opens

91°C (196°F)

Valve lift

mm (in)

9.0 (0.354) or more

Valve bore

mm (in)

35 (1.38)

Radiator fan

Motor input

Main fan

W

120

Sub fan

W

120

Fan diameter / Blade

Main fan

318.5 mm (12.54 in)/9

Sub fan

318.5 mm (12.54 in)/11

Radiator

Type

Down flow

Core dimensions

Width × Height × Thickness

mm (in)

687.4 × 340 × 16 (27.06 × 13.39 × 0.63)

Pressure range in which cap valve is open

Coolant filler tank side

kPa (kg/cm2, psi)

Above: 108±14.7

(1.1±0.15, 16±2.1)

Below: −1.0 to −4.9

(−0.01 — −0.05, −0.1 — −0.7)

Radiator side

kPa (kg/cm2, psi)

Above only: 137±14.7

(1.40±0.15, 20±2.1)

Fins

Corrugated fin type

Reservoir tank

Capacity

L (US qt, Imp qt)

0.45 (0.48, 0.40)

 

Recommended materials

Item number

Alternative

Coolant

SUBARU SUPER COOLANT (Concentrated type)

Non-amine type

SUBARU SUPER COOLANT (Diluted type)

K0670Y0001

Water for dilution

Distilled water

Soft water or tap water