740 L4-2320cc 2.3L DOHC B234F (Can) (1992)
Thermostat: Service and Repair
Thermostat, Checking/Replacement
Thermostat replacement
Drain off approx. 2 liters (2 US qt) of coolant
Remove expansion tank cap.
Open cock on right-hand side of cylinder block. Fit hose to cock to collect coolant.
Close drain cock.
Undo thermostat housing
Remove thermostat and gasket.
Clean joint surfaces on cylinder head and thermostat housing.
Install new thermostat
Use new gasket.
Place gasket on thermostat.
Place thermostat in housing.
Replace and tighten housing.