| WARNING | Sodium-filled exhaust valves must not be disposed of until they have been properly treated as follows: Saw the valves into two sections using a metal saw at a point between the center of the valve stem and the valve head. The valves must not come into contact with water when this is done. Throw the valves into a bucket of water (not more than ten at a time) and step back. A sudden chemical reaction will occur during which the sodium filling burns. After this treatment the valves can be disposed of as normal scrap. |
Valves must not be refaced by grinding. Hand lap only. If lapping does not produce proper sealing, check valve seat. See VALVE SEAT .