COOLING(H4DOTC) > General Description

SPECIFICATION

Cooling system

Electric fan + Forced engine coolant circulation system

Total engine coolant capacity

L (US qt, Imp qt)

Approx. 7.8 (8.2, 6.9)

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

Starting temperature to open

76 — 80°C (169 — 176°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±15

(1.1±0.15, 16±2)

Below: −1.0 — −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)

Coolant

Recommended materials

Item number

Alternative

Coolant

SUBARU coolant

000016218

Non-amine type

Water for dilution

Distilled water

—

Soft water or tap water

Vehicle speed

A/C compressor load

Engine coolant temperature

Increase: 94°C (201°F) or less

Decrease: 91°C (196°F) or less

Increase: 95 — 96°C (203 — 205°F)

Decrease: 92 — 94°C (198 — 201°F)

Increase: 97°C (207°F) or more

Decrease: 95°C (203°F) or more

Radiator fan operation

Radiator fan operation

Radiator fan operation

When accelerating: 19 km/h (12 MPH) or less

When decelerating: 10 km/h (6 MPH) or less

OFF

OFF

Low-Speed

High-Speed

Low

Low-Speed

Low-Speed

High-Speed

High

High-Speed

High-Speed

High-Speed

When accelerating: 20 — 69 km/h (12 — 43 MPH)

When decelerating: 11 — 64 km/h (7 — 40 MPH)

OFF

OFF

Low-Speed

High-Speed

Low

High-Speed

High-Speed

High-Speed

High

High-Speed

High-Speed

High-Speed

When accelerating: 70 — 105 km/h (43 — 65 MPH)

When decelerating: 65 — 103 km/h (40 — 64 MPH)

OFF

OFF

Low-Speed

High-Speed

Low

High-Speed

High-Speed

High-Speed

High

High-Speed

High-Speed

High-Speed

When accelerating: 106 km/h (66 MPH) or more

When decelerating: 104 km/h (65 MPH) or more

OFF

OFF

High-Speed

High-Speed

Low

High-Speed

High-Speed

High-Speed

High

High-Speed

High-Speed

High-Speed