REMOVAL & INSTALLATION
- Drain the radiator until the coolant level is below the thermostat level (below the level of the intake manifold).
- Remove the water outlet elbow assembly from the engine. Remove the thermostat from inside the elbow.
- Install new thermostat in the reverse order of removal, making sure the spring side is inserted into the elbow. Clean the gasket surfaces on the water outlet elbow and the intake manifold. Use a new gasket when installing the elbow to the manifold. On later models the thermostat housing may have been sealed with RTV sealant. If so, place a 1 /8 inch bead of RTV sealer all around the thermostat housing sealing surface on the intake manifold and install the housing while it is still wet. Refill the radiator to approximately 2 1 /2 inch below the filler neck.
If the thermostat is equipped with a pin hole, be sure to install pin side facing upwards.