Removal and Installation

THERMOSTAT


Removal and Installation


WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure engine coolant escaping from the radiator.

REMOVAL

CAUTION:
Perform when the engine is cold.
1. Drain engine coolant from the radiator. Changing Engine Coolant.
2. Remove the cooler hose (CVT only).
3. Disconnect radiator hose (lower) and remove water inlet.
4. Remove thermostat.
5. Remove thermostat housing, if necessary.

INSPECTION AFTER REMOVAL





- Place a thread (A) so that it is caught in the valves of thermostat
(1). Immerse fully in a container (B) filled with water. Heat while stirring.
- The valve opening temperature is the temperature at which the valve opens and the thermostat falls from the thread.
- Continue heating. Check the full-open valve lift amount.

NOTE:
The full-open valve lift amount standard temperature for the thermostat is the reference value.
- After checking the full-open valve lift amount, lower the water temperature and check the valve closing temperature.






- If out of the specification, replace thermostat.

INSTALLATION
Installation is in the reverse order of removal.

Thermostat

CAUTION:
Replace the rubber ring with a new one.





- Install thermostat while making rubber ring (1) groove fit to thermostat flange (A) around the whole circumference.





- Install thermostat (1) into the thermostat housing (2) with jiggle valve (A) facing upwards.

Thermostat Housing

CAUTION:
Replace the rubber ring with a new one.
- Securely insert the rubber ring into the mating groove of thermostat housing and install it.
- Install the thermostat housing to the cylinder block without displacing the gasket from the gasket position.

INSPECTION AFTER INSTALLATION
- Check for leaks of engine coolant. Inspection.
- Start and warm up the engine. Visually check for engine coolant leaks.