Engine Cooling System: 1F-11
6) Read the thermometer just when opening the
thermostat. If this reading, which is the temperature
level at which the thermostat valve begins to open, is
out of the standard value, replace the thermostat
with a new one.
Thermostat valve opening temperature
Standard: Approx. 82 °C (180 °F)
7) Keep on heating the water to raise its temperature.
8) Just when the water temperature reaches specified
value, the thermostat valve should have been lifted
by at least 8 mm (0.31 in). A thermostat failing to
satisfy either of the two requirements (start-to-open
temperature and valve lift) must be replaced.
Thermostat valve lift “a”
Standard: Over 8 mm (0.31 in) and at 95 °C (203
°F)
9) Install the thermostat. Refer to “Thermostat Cover /
Thermostat Removal and Installation (Page 1F-9)”.
Water Pump Components
B815H21606015
I705H1160031-04
2
5
4
3
(a)
2
(c)
1
(b)
I815H1160031-02
1. Water pump case : 8 N⋅m (0.8 kgf-n, 6.0 Ib-ft) : Apply molybudenum oil solution.
2. O-ring : 6 N⋅m (0.6 kgf-n, 4.5 Ib-ft) : Apply thread lock.
3. Impeller : 10 N⋅m (1.0 kgf-n, 7.0 Ib-ft) : Do not reuse.
4. Mechanical seal : Apply grease.
5. Oil seal : Apply engine coolant.
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