4C20 Gasoline Engine Repair Manual
Assembly
(a) Install the thermostat in the coolant pump housing
(c) Install the thermostat cover on the pump housing and secure with 2 bolts.
ÿ Tightening torque: 10±1 Nm.
(e) Check if the valve is closed when the coolant temperature is below the opening
start temperature (88°C).
liquid.
niya.
(g) If the valve does not close at the specified temperature, the
thermostat must be replaced.
7. Check after installation
(b) Make sure the thermostat rubber ring is properly
(d) Check thermostat valve travel.
but installed in the coolant pump housing.
6. Installing the thermostat
(a) Start the engine and check if the cooling is leaking
(e) Valve travel: 8mm minimum at 101°C coolant temperature.
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