REMOVAL & INSTALLATION
See Figures 1, 2, 3, 4, 5 and 6
Fig. Fig. 1: Engine cooling system components-8R-C and 18R-C engines
Fig. Fig. 2: The thermostat is housed sideways on the 5M-GE engine
Fig. Fig. 3: The thermostat on the 22R-EC has a rubber O-ring, rather than a fiber gasket
Fig. Fig. 4: Locate the thermostat housing and remove the mounting nuts-22R-EC engine shown
Fig. Fig. 5: Lift off the housing, then remove the thermostat and gasket-22R-EC engine shown
Fig. Fig. 6: The rubber O-ring gasket peels off with ease-22R-EC engine
Drain the cooling system.
Unfasten the clamp and remove the upper radiator hose from the water outlet elbow.
Unbolt and remove the water outlet (thermostat housing).
Withdraw the thermostat.
Installation is performed in the reverse order of the removal procedure. Use a new gasket on the water outlet.
Be sure that the thermostat is installed with the spring pointing down.