380SL (107.045) V8-3.8L (116.960) (1982)
Valve: Service and Repair
Checking and Machining Valves
Specifications
WARNING: The exhaust valves are filled with sodium!
When scrapping these valves, observe safety regulations. Do not melt valves filled with sodium as there is a risk of explosion and do not use
such valves for making tools (punch etc.) without first removing the sodium filling.
Be careful when removing the sodium from the valves, since sodium mixed with water and water solutions causes an extremely severe and
explosive reaction and the resulting hydrogen gas may start a fire.
Sodium from cut or broken-up valves can be neutralized in a mixture of 2 liters of spirit of alcohol and 1 liter of water in a container in the
open air.
Sodium-filled valves can be collected and sent for neutralizing.
CHECKING AND MACHINING:
1
Clean valves and check visually.
Valves with a burnt valve disk, with insufficient height "h" of the valve disk and valves with worn out or scored valve stem should be replaced.