Removal Of Thermostat; Remove Water Outlet And Thermostat; Inspection Of Thermostat; Install Thermostat And Water Outlet - Toyota 7M-GE Repair Manual

CO-8
-.
COOLING SYSTEM
L Thermostat
._
Valve Lift
i
t-
THERMOSTAT
REMOVAL OF THERMOSTAT
REMOVE WATER OUTLET AND THERMOSTAT
(a) Remove two bolts, water outlet and thermostat with
gasket from the water outlet, housing.
(b) Remove the gasket from the thermostat.
INSPECTION OF THERMOSTAT
NOTE: Thermostat is numbered according to the valve
opening temperature.
(a)
Immerse the thermostat in water and heat the water
gradually.
(b)
Check the valve opening temperature.
Valve opening temperature:
86 - (187
-
If the valve opening temperature is not within specifica-
tion, replace the thermostat.
(c) Check the vatve lift.
Valve lift:
8 mm (0.31 in.) or more at
If the valve lift is less than specification, replace the ther-
mostat.
(d) Check that the valve spring is tight when the ther-
mostat is fully closed.
If necessary, replace the thermostat.
INSTALLATION OF THERMOSTAT
INSTALL THERMOSTAT AND WATER OUTLET
(a) Place a new gasket to the thermostat.
(b) Install the thermostat with the jiggle valve facin
upward as shown in the illustration, and water outlc
with the two bolts.
,