Toyota Sequoia (2005). Manual — part 709
B17478
A
B
–
COOLING
WATER PUMP
CO–9
2825
(f)
Install the water inlet and housing assembly with the 2
bolts. Alternately tighten the bolts.
Torque: 18 N·m (185 kgf·cm, 13 ft·lbf)
HINT:
Each bolt length is indicated in the illustration.
Bolt length:
76 mm (3.00 in.) for A
22 mm (0.87 in.) for B
(g)
Connect the water bypass hose to the water inlet housing.
3.
INSTALL NO.2 IDLER PULLEY (See page
4.
INSTALL TIMING BELT (See page
5.
FILL WITH ENGINE COOLANT
6.
START ENGINE AND CHECK FOR ENGINE COOLANT
LEAKS
7.
RECHECK ENGINE COOLANT LEVEL
CO0IU–07
B05865
Water Inlet
Thermostat
Gasket
N·m (kgf·cm, ft·lbf) : Specified torque
Non–reusable part
19 (195, 14)
CO–10
–
COOLING
THERMOSTAT
2826
THERMOSTAT
COMPONENTS
CO0IV–04
B05866
–
COOLING
THERMOSTAT
CO–11
2827
REMOVAL
HINT:
Removal of the thermostat would have an adverse effect, caus-
ing a lowering of cooling efficiency. Do not remove the thermo-
stat, even if the engine tends to overheat.
1.
DRAIN ENGINE COOLANT
2.
DISCONNECT WATER INLET FROM WATER INLET
HOUSING
Remove the 3 nuts and disconnect the water inlet from the wa-
ter inlet housing.
3.
REMOVE THERMOSTAT
(a)
Remove the thermostat.
(b)
Remove the gasket from the thermostat.
CO0IW–08
P08849
CO0929
CO0949
Valve Lift
CO–12
–
COOLING
THERMOSTAT
2828
INSPECTION
INSPECT THERMOSTAT
HINT:
The thermostat is numbered with the valve opening tempera-
ture.
(a)
Immerse the thermostat in water and gradually heat the
water.
(b)
Check the valve opening temperature.
Valve opening temperature: 80 to 84
°
C (176 to 183
°
F)
If the valve opening temperature is not as specified, replace the
thermostat.
(c)
Check the valve lift.
Valve lift: 10 mm (0.39 in.) or more at 95
°
C (203
°
F)
If the valve lift is not as specified, replace the thermostat.
(d)
Check that the valve is fully closed when the thermostat
is at low temperatures (below 40
°
C (104
°
F)).
If not closed, replace the thermostat.
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