THERMOSTAT REMOVAL OF THERMOSTAT 1. DRAIN COOLANT 2. REMOVE WATER OUTLET AND THERMOSTAT (a) Remove the two bolts, water outlet and thermostat with gasket from the water outlet housing. (b) Remove the gasket from the thermostat. INSPECTION OF THERMOSTAT INSPECT THERMOSTAT HINT: 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 — 90°C (187 — 194°F) If the valve opening temperature is not within specification, replace the thermostat. (c) Check the valve lift. Valve lift: 8 mm (0.31 in.) or more at 100°C (212°F) If the valve lift is less than specification, replace the thermostat. (d) Check that the valve spring is tight when the thermostat is fully closed. If necessary, replace the thermostat. INSTALLATION OF THERMOSTAT 1. INSTALL THERMOSTAT AND WATER OUTLET (a) Place a new gasket to the thermostat. (b) Install the thermostat with the jiggle valve facing upward as shown in the illustration, and water outlet with the two bolts. Torque: 80 kg·cm (69 in.·lb, 7.8 N·m) 2. FILL WITH COOLANT 3. START ENGINE AND CHECK FOR LEAKS