Pic. 2.310. Thermostat components
Withdrawal
Drain the coolant so that its level is below the thermostat.
Remove the coolant inlet pipe and gasket.
Remove the thermostat.
Examination
Pic. 2.311. Immersion of the thermostat in a water bath
Place the thermostat in hot coolant or water and check that the thermostat valve opening temperature is within specification. Replace if necessary (pic. 2.311).
Valve opening start temperature: 82°C.
Valve full opening temperature: 95°C.
Valve travel (at full opening): 8.5 mm.
Installation
Check that the thermostat valve flange is properly seated in the thermostat housing. If the thermostat is not installed correctly, the bottom of the thermostat will touch the fin inside the inlet pipe, causing the thermostat to malfunction.
Pic. 2.312. Outlet fitting
Install outlet pipe with new gasket (pic. 2.312).
The moment of an inhaling of bolts of fastening of an inlet branch pipe: 17–20 Н·м.
Fill the system with fresh coolant.