Inspection Of Thermostat; Installation Of Thermostat - Toyota 3b Repair Manual

COOLING SYSTEM
-
Thermostat
INSPECTION OF THERMOSTAT
HINT:
The thermostat is numbered with
ing temperature.
the valve
open-
(a)
lmmerse the thermostat
in water
and gradually heat
the water.
(b)
Check
the
vatve
opening temperature.
Valve opening temperature:
p2oC
type
80
-
84oC (126
-
183oFl
88oC
type
86
-
gOoC
(197
_
194.Fi
lf the valve opening temperature is not
within
specificaticin,
replace the thermostat.
(c)
Check the vatve lift.
Valve
lift:
82oC type
1O
mm (0.39 in.) or more at
gSoC
(2O3oF)
88oC type
1O
mm (0.39 in.) or more at
IOOoC
(21ZoFl
lf
the
valve
lift is
less than
specification, replace the
thermostat.
INSTALLATION
OF
THERMOSTAT
1.
PLACE THERMOSTAT IN WATER OUTLET HOUSING
lnstall a new gasket to thermostat.
2,
INSTALL WATER OUTLET
lnstall the water outlet with the three
bolts. Torque the
bolts.
Torque:
185 kg-cm (13 ft_tb, 1g N.ml
3.
IWATER OUTLET CAP ryPE]
CONNECT COOLANT RESEhVOIR HOSE
AND
WATER BY_PASS HOSE(S)
4.
CONNECT RADIATOR INLET HOSE
5.
FILL
ENGTNE
W|TH COOLANT (See pase
CO_S)
6.
START ENGINE
AND
CHECK FOR LEAKS
I
l