Thermostat - Isuzu A-4JA1 Workshop Manual

Make the necessary adjustments, repairs, and part replacements if excessive wear or damage is
discovered during inspection.
2

THERMOSTAT

INSPECTION AND REPAIR
1
3
Operating Test
1. Completely submerge the thermostat in water.
2. Heat the water.
Stir the water constantly to avoid direct heat being
applied to the thermostat.
3. Check the thermostat initial opening temperature.
Thermostat Initial Opening Temperature
4. Check the thermostat full opening temperature.
Thermostat Full Opening Temperature
Valve Lift at Fully Open Position
1 Thermostat
2 Agitating Rod
3 Wooden Piece
COOLING SYSTEM
82 (180)
95 (203)
8.0 (0.315)
°C(°F)
°C(°F)
mm(in.)
131