4G9 ENGINE (E - W) - Cylinder Head and Valves

11A-9-5

AC" VALVE STEM SEAL REMOVAL

AD" VALVE HANDLING PRECAUTIONS

(1)Sodium reacts violently with water or moisture generation heat and liberating hydrogen. It must be handled with utmost care because otherwise the following dangerous conditions may result:

Loss of eyesight if sodium gets in eyes. Burns if sodium contact skin.

Fire hazard.

(2)Handling of Sodium-filled Exhaust Valves Sodium-filled exhaust valves are not dangerous and may be handled in the same way as ordinary valves unless they are broken.

Never try to break the valves and expose sodium to the air. When worn exhaust valves are to be discarded, have them disposed of by a salvage company equipped with special disposal system, notifying them that the valves contain sodium.

Should the exhaust valves be broken, neutralize sodium using the method described below, and discard the valves in the same way as ordinary valves.

(3)How to Neutralize Sodium

Place a container filled with more than 10 liters of water in a well ventilated large space.

Wear rubber gloves and goggles, and carefully take out broken valves from the cylinder head.

Put a broken valve in the water-filled container and quickly get away from the container at least 2 or 3 m (6.6 or 10 ft.)

E Mitsubishi Motors Corporation

Nov. 1995

PWEE9502-A

Revised