REMOVAL & INSTALLATION
- Disconnect the negative battery cable. Drain the radiator until the 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. 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 in. 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 in. below the filler neck.
If the thermostat is equipped with a pin hole, be sure to install pin side facing upwards.