Subaru Legacy 2005 Service Manual page 1180

COOLING
1. General Description
A: SPECIFICATION
Cooling system
Total engine coolant capacity
Type
Discharge perfor-
mance I
Discharge perfor-
mance II
Water pump
Discharge perfor-
mance 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 /
Blades
Type
Core dimensions
Radiator
Pressure range in
which cap valve is
open
Fins
Reservoir
Capacity
tank
General Description
2 (US qt, Imp qt)
2 (US gal, Imp gal)
Discharge rate
Pump speed — Discharge pressure
Engine coolant temperature
2 (US gal, Imp gal)
Discharge rate
Pump speed — Discharge pressure
Engine coolant temperature
2 (US gal, Imp gal)
Discharge rate
Pump speed — Discharge pressure
Engine coolant temperature
Standard
Main fan
Sub fan
Main fan
Sub fan
Width × Height ×Thick-
ness
Coolant filler tank side
kPa (kgf/cm
Radiator side
kPa (kgf/cm
2 (US qt, Imp qt)
CO(H4DOTC)-2
Electric fan + Forced engine coolant circulation system
AT model (with ATF warmer): 7.7 (8.1, 7.1)
AT model (without ATF warmer): 7.3 (7.7, 6.4)
MT model: 7.4 (7.8, 6.5)
Centrifugal impeller type
/min
760 rpm — 2.9 kPa (0.3 mAq)
/min
3,000 rpm — 49.0 kPa (5.0 mAq)
/min
6,000 rpm — 225.4 kPa (23.0 mAq)
mm (in)
mm (in)
mm (in) 0.5 — 1.5 (0.020 — 0.059)
76 — 80°C (169 — 176°F)
mm (in) 9.0 (0.354) or more
mm (in)
W
W
300 mm (11.8 in) / 4
300 mm (11.8 in) / 5
687.4 × 340 × 16 (27.06 × 13.39 × 0.63)
mm (in)
Below: −1.0 — −4.9
2
, psi)
(−0.01 — −0.05, −0.1 — −0.7)
Above only: 137±14.7
2 (1.40±0.15, 20±2.1)
, psi)
Corrugated fin type
20 (5.3, 4.4)
80°C (176°F)
100 (26.4, 22.0)
80°C (176°F)
200 (52.8, 44.0)
80°C (176°F)
76 (2.99)
8
60 (2.36)
Wax pellet type
91°C (196°F)
35 (1.38)
90
90
Down flow
Above: 108±15
(1.1±0.15, 16±2)
0.45 (0.48, 0.40)