Thermostat: Service and Repair

CAUTION:
^ Removal of the thermostat would have an adverse effect on engine performance and emissions and would cause a lowering of cooling efficiency.
^ Do not remove the thermostat, even if the engine tends to overheat.

REMOVAL
1. Drain engine coolant.



2. Remove the two nuts holding the water inlet to the inlet housing, and disconnect the water inlet together with the radiator hose from the water inlet housing.
3. Remove the thermostat and gasket from the thermostat housing.

INSTALLATION



1. Install a new gasket to the thermostat, then insert the thermostat into the water inlet housing with the jiggle valve facing straight upward.
NOTE: The jiggle valve may be set within 30° of either side of the vertical position.

2. Install water inlet, tighten nuts to 18 Nm (185 kg.cm, 13 ft.lb).
3. Fill with engine suitable coolant.
4. Start engine and check for coolant leaks.