Thermostat

Components

Removal

1. 1
   Remove no. 1 Engine under cover
2. 2
   Drain engine coolant (see page co-6)
3. 3
   Remove radiator support opening cover
4. 4
   Disconnect no. 2 Radiator hose
5. 5
   Remove water inlet
6. 6
   Remove the 2 nuts and disconnect the water inlet from the cylinder block.
7. 7
   Remove thermostat
8. 8
   Remove the gasket from the thermostat.

Inspection

1. Inspect thermostat

Hint:

The valve opening temperature is inscribed on the thermostat.

1. 1
   Immerse the thermostat in water, and then gradually heat the water.
2. 2
   Check the valve opening temperature of the thermostat.

Standard valve opening temperature: 80 to 84°c (176 to 183°f)

If the valve opening temperature is not as specified, replace the thermostat.

3. Check the valve lift.

Standard valve lift: 10 mm (0.39 In.) Or more at 95°c (203°f)

If the valve lift is not as specified, replace the thermostat.

4. Check that the valve is fully closed when the thermostat is at low temperatures (below 77°c (171°f).

If it is not fully closed, replace the thermostat.

Installation

1. Install thermostat

1. 1
   Install a new gasket onto the thermostat.
2. 2
   Install the thermostat with the jiggle valve upward.

Hint:

The jiggle valve may be set to within 10° on either side of the prescribed position.

1. 1
   Install water inlet
2. 2
   Install the water inlet with the 2 nuts.
3. 3
   Connect no. 2 Radiator hose
4. 4
   Add engine coolant (see page co-6)
5. 5
   Check for engine coolant leaks (see page co-1)
6. 6
   Install radiator support opening cover
7. 7
   Install no. 1 Engine under cover

   

Torque: 9.0 N*m (92 kgf*cm, 80 in.*Lbf)