Thermostat: Service and Repair
THERMOSTATREMOVAL OF THERMOSTAT
1. DRAIN COOLANT
2 REMOVE WATER INLET AND THERMOSTAT
Remove the two bolts, the water inlet and thermostat from the water inlet housing.
INSPECTION OF THERMOSTAT
NOTE: The 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 and valve lift. If the valve opening temperature and valve lift are not within the following specifications, replace the thermostat.
Low temperature type: Valve opening temperature 80 - 84°C (176 - 183°F)
Valve lift More than 8 mm (0.31 in.) at 95°C (203°F)
(c) Check that valve spring is tight when the thermostat is fully closed. Replace as necessary.
INSTALLATION OF THERMOSTAT
1. INSTALL THERMOSTAT AND WATER INLET Install the water inlet on a new gasket with two nuts.
2. REFILL RADIATOR WITH COOLANT.
3. START ENGINE AND CHECK FOR LEAKS