Thermostat

LC-48parts diagram

Parts DiagramFig. SLC378

Part Name	Notes
Thermostat housing	—
Thermostat	Install with air vent hole up
Gasket	Replace with new one
Water outlet housing	—
Bolts	5.1 - 6.5 N·m (0.52 - 0.66 kg-m, 3.8 - 4.8 ft-lb)

Specification	Value
Housing bolt	≈50 - 64N·m

Housing bolt

50 - 64N·m

CAUTION

After installation, run engine for a few minutes, and check for leaks. Be careful not to spill coolant over engine compartment. Place a rag to absorb coolant.

INSPECTION

1
Check valve seating condition at ordinary temperatures. It should seat tightly.
2
Check valve opening temperature and maximum valve lift.
SLC343
3
Then check if valve closes at 5°C (9°F) below valve opening temperature.

Thermostat valve opening temperature and maximum valve lift

Item	Frigid type	Standard type	Tropical type
Valve opening temperature °C (°F)	88 (190)	82 (180)	76.5 (170)
Max. valve lift mm/°C (in/°F)	8/100 (0.31/212)	8/95 (0.31/203)	8/90 (0.31/194)

Valve opening temperature °C (°F)

Frigid type88 (190)

Standard type82 (180)

Tropical type76.5 (170)

Max. valve lift mm/°C (in/°F)

Frigid type8/100 (0.31/212)

Standard type8/95 (0.31/203)

Tropical type8/90 (0.31/194)

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Thermostat

INSPECTION

Thermostat valve opening temperature and maximum valve lift

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