Subaru Legacy IV (2008 year). Manual - part 494
CO(H6DO)-2
General Description
COOLING
1. General Description
A: SPECIFICATION
Cooling system
Electric fan + Forced engine coolant
circulation system
Total engine coolant capacity
2 (US qt, Imp qt)
Approx. 7.2 (7.6, 6.3)
Water pump
Type
Centrifugal impeller type
Discharge
performance I
Discharge rate
2 (US gal, Imp gal)/min.
320 (84.5, 70.4)
Pump speed — Discharge pressure
5,500 rpm — 176.5 kPa (18 mAq)
Engine coolant temperature
80°C (176°F)
Impeller diameter
mm (in)
73.2 (2.88)
Number of impeller vanes
6
Number of pump sprocket teeth
22
Thermostat
Type
Wax pellet type
Starting temperature to open
80 — 84°C (176 — 183°F)
Fully opens
95°C (203°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
160
Sub fan
W
160
Fan diameter / Blade
Main fan
320 mm (12.6 in)/5
Sub fan
320 mm (12.6 in)/7
Radiator
Type
Down flow, pressure type
Core dimensions
Width × Height
× Thickness
mm (in)
690 × 349 × 16 (27.17 × 13.74 × 0.63)
Pressure range in
which cap valve is
open
kPa (kgf/cm
2
, psi)
Above: 108
r14.7
(1.1
r0.15, 16r2)
Below: The atmospheric pressure or less
Fins
Corrugated fin type
Reservoir tank
Capacity
2 (US qt, Imp qt)
0.45 (0.48, 0.40)
Recommended materials
Item number
Alternative
Coolant
SUBARU SUPER COOLANT (Concentrated type)
—
—
SUBARU SUPER COOLANT (Diluted type)
K0670Y0000
Water for dilution
Distilled water
—
Soft water or tap water
Cooling system
protective agent
Cooling system conditioner
SOA345001
—
A/C compressor
A/C middle pressure
switch
Engine coolant temperature
Increase: less than 95°C
(203°F)
Decrease: less than 93°C
(199°F)
Increase: 95 — 101°C
(203 — 214°F)
Decrease: 93 — 99°C
(199 — 210°F)
Increase: 102°C (216°F)
or more
Decrease: 100°C (212°F)
or more
OFF
0%
Refer to fig. (1)
100%
ON
OFF
Refer to fig. (2)
100%
ON
Refer to fig. (3)
100%