>>C<< Thermostat Case Assembly Installation

Use a gasket scraper or wire brush to completely eliminate all gasket material on the gasket mounting surface.
Apply a bead of the sealant to the cylinder head mating surface of the thermostat case assembly as shown in the illustration.
Specified Sealant: 3M™ AAD Part No. 8672, 3M™ AAD part No. 8679/8678 or equivalent

NOTE: Install the thermostat case assembly immediately after applying sealant.

Fig 1: Applying Bead Of Sealant To Cylinder Head Mating Surface Of Thermostat Case Assembly
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Apply sealant to the thread of the thermostat case assembly bolt as shown in the illustration.
Specified Sealant: 3M™ AAD Part No. 8730, 8731 or equivalent

CAUTION: After installing the parts, wait at least one hour. Never start the engine or let engine oil or water touch the sealant application area during that time.

Fig 2: Applying Sealant To Thread Of Thermostat Case Assembly Bolt
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
With the sealant still wet, install the thermostat case assembly. Do not apply the sealant in an area more than the required.