Cylinder Head: Disposal
WARNING: This page is about a different variant/trim than selected.
CAUTION:
- Metallic sodium is enclosed in the exhaust valve. Metallic sodium is extremely alkaline and may produce severe chemical reactions. Full consideration must therefore be given to the following points when handling or disposing of the valve.
- Since metallic sodium may cause blindness if contacted with the eyes, burns if contacted with the skin, and fire, do not deliberately take the valve apart.
- If the valve is damaged, remove the valve and neutralize it by immersing it in water, and dispose of it in the same way that general steel materials are disposed of. The disposal method is described in the following.
- Wearing rubber gloves, remove the damaged valve from the cylinder head.
- Prepare a large receptacle (bucket or other container) in a well ventilated location, and fill the receptacle with water (at least 10 liters).
- Immerse the damaged valve in the receptacle.CAUTION: A severe reaction may occur, so stand at least 2 - 3 m from the receptacle. Because the reaction will produce hydrogen gas, moreover, keep the receptacle away from sparks or flames.
- Once the reaction is completed (about 4 - 5 hours have elapsed), carefully remove the valve using large pincers so that the reaction liquid does not contact your skin, and dispose of it with other parts that are being disposed of.
- The reaction liquid is a strong alkaline solution, so it must be disposed of in accordance with local regulations.
CAUTION: Make sure the reaction liquid does not contact your skin. If contact with skin occurs, immediately wash the affected area with large quantities of water.