Thermostat: Service and Repair

Removal





Remove components in the order shown.

Inspection
1. Visually check that thermostat is airtight.
2. Place thermostat and a thermometer in water.





3. Gradually heat water and check following.
Initial opening temperature: 188 - 193°F (86.5 - 89.5°C)
Full open temperature: 212°F (100°C)
Full open lift: 0.31 inch (8.0 mm) min

Installation





1. Install thermostat into cylinder head with jiggle pin positioned up.
2. Install in the reverse of removal.