Subaru 2009 IMPREZA Service Manual page 1182

COOLING
1. General Description
A: SPECIFICATION
Cooling system
Total engine coolant capacity
Type
Discharge
performance I
Discharge
performance II
Discharge
Water pump
performance III
Impeller diameter
Number of impeller vanes
Pump pulley diameter
Clearance
between
impeller and
case
Type
Starting temperature to open
Thermostat Fully opens
Valve lift
Valve bore
Motor input
Radiator fan
Fan diameter /
Blade
Type
Core
dimensions
Radiator
Pressure range
in which cap
valve is open
Fins
Reservoir
Capacity
tank
Coolant
Water for dilution
Cooling system protective agent
General Description
Discharge rate
Pump speed — Discharge pressure
Engine coolant temperature
Discharge rate
Pump speed — Discharge pressure
Engine coolant temperature
Discharge rate
Pump speed — Discharge pressure
Engine coolant temperature
Standard
Main fan
Sub fan
Main fan
Sub fan
Width × Height × Thickness
Coolant filler tank side
Radiator side
Recommended materials
SUBARU SUPER COOLANT
(Concentrated type)
SUBARU SUPER COOLANT
(Diluted type)
Distilled water
Cooling system conditioner
CO(H4DOTC)-2
2 (US qt, Imp qt)
2 (US gal, Imp gal) /min.
2 (US gal, Imp gal) /min.
2 (US gal, Imp gal) /min.
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
W
W
mm (in) 687.4 × 340 × 16 (27.06 × 13.39 × 0.63)
2
kPa (kg/cm , psi)
2
kPa (kg/cm , psi)
2 (US qt, Imp qt)
Item number
—
K0670Y0000
—
SOA345001
Electric fan + Forced engine coolant
circulation system
AT model: Approx. 7.4 (7.8, 6.5)
MT model: Approx. 7.5 (7.9, 6.6)
Centrifugal impeller type
20 (5.3, 4.4)
760 rpm — 2.9 kPa (0.3 mAq)
80°C (176°F)
100 (26.4, 22.0)
3,000 rpm — 49.0 kPa (5.0 mAq)
80°C (176°F)
200 (52.8, 44.0)
6,000 rpm — 225.4 kPa (23.0 mAq)
80°C (176°F)
76 (2.99)
8
60 (2.36)
0.5 — 1.5 (0.020 — 0.059)
Wax pellet type
76 — 80°C (169 — 176°F)
91°C (196°F)
9.0 (0.354) or more
35 (1.38)
120
120
318.5 mm (12.54 in)/9
318.5 mm (12.54 in)/11
Down flow
Above: 108 14.7
(1.1 0.15, 16 2.1)
Below: –1.0 — –4.9
(–0.01 — –0.05, –0.1 — –0.7)
Above only: 137 14.7
(1.40 0.15, 20 2.1)
Corrugated fin type
0.45 (0.48, 0.40)
Alternative
—
Soft water or tap water
—