IS 250C V6-2.5L (4GR-FSE) (2011)
Thermostat: Testing and Inspection
4GR-FSE COOLING: THERMOSTAT: INSPECTION
1. INSPECT INLET WATER WITH THERMOSTAT SUB-ASSEMBLY
(a) The valve opening temperature is marked on the inlet water with thermostat sub-assembly.
(b) Submerge the inlet water with thermostat sub-assembly, and then gradually heat the water.
(c) Check the valve opening temperature.
Standard valve opening temperature:
80 to 84°C (176 to 183°F)
HINT
If the valve opening temperature is not specified, replace the inlet water with thermostat sub-assembly.
(d) Check the valve lift.
Standard valve lift:
8.0 mm (0.315 in.) or more at 95°C (203°F)
HINT
If the valve lift value is not as specified, replace the inlet water with thermostat sub-assembly.
(e) When the temperature of the inlet water with thermostat sub-assembly drops below 77°C (171°F), check that the valve is fully closed.
HINT
If the valve is not fully closed, replace the water inlet with thermostat sub-assembly.