Subaru Legacy 2004 Service Manual page 1240

COOLING
Tightening torque:
%
12 N m (1.2 kgf-m, 8.7 ft-lb)
T
(A) Thermostat cover
(B) Gasket
(C) Thermostat
(D) Jiggle pin
2) Connect the radiator outlet hose to thermostat
cover.
3) Install the under cover.
4) Lower the vehicle.
5) Fill with engine coolant. <Ref. to CO(H4DOTC)-
13, FILLING OF ENGINE COOLANT, REPLACE-
MENT, Engine Coolant.>
C: INSPECTION
Replace the thermostat if the valve does not close
completely at an ambient temperature or if the fol-
lowing test shows unsatisfactory results.
• Inspection method
Immerse the thermostat and a thermometer in wa-
ter. Raise water temperature gradually, and mea-
sure the temperature and valve lift when the valve
begins to open and when the valve is fully opened.
During the test, agitate the water for even temper-
ature distribution. The measurement should be to
the specification.
Starting temperature to open:
!
76 — 80 C (169 — 176
Fully opens:
! !
91 C (196 F)
Thermostat
(D)
(C)
(B)
(A)
CO-00155
!
F)
CO(H4DOTC)-18
Valve lift:
9.0 mm (0.354 in) or more
(A) Thermometer
(B) Thermostat
( A )
( B )
CO-00033