Thermostat Inspection; Thermostat Installation; Removal - Mazda 626 MX-6 Workshop Manual

THERMOSTAT

REMOVAL

1. Drain the engine coolant.
2. Remove the thermostat cover.
3. Remove the thermostat.
INSPECTION
Check the thermostat. Replace if necessary.
1. Visually check that the valve is airtight.
2. Place the thermostat and a thermometer in water.
3. Gradually heat the water and check the following:
Initial opening temperature:
86.5—89.5°C (188—193°F)
Full-open temperature: 100°C (212°F)
Full-open lift: 8.5 mm (0.34 in) min.
69G03B-012
INSTALLATION
1. Install the thermostat into the cylinder head with
jiggle pin at the top.
2. Install a new gasket with the seal print side facing
the cylinder head.
3. Install the thermostat cover.
Tightening torque:
19—30 N m (1.9—3.1 m-kg, 14—22 ft-lb)
4. Replenish the coolant.
5. Start the engine and check for leaks.
86U03X-018
THERMOSTAT
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