Valve, Intake/Exhaust
Valve dimensions
WARNING:
- Valves must not be replaced by cutting or grinding.
- Only hand lapping is permitted.
- Sodium-filled exhaust valves must not be scrapped without first being properly treated.
- The valves must be cut open using a hacksaw, by hand, between the valve head and the middle of the stem.
- The valves must not come into any contact with water while being cut.
- After cutting open the valves, throw not more than 10 at a time into a bucket of water and step back. A sudden chemical reaction will occur during which the sodium filling is consumed.
- Valves that have been treated in this way can be disposed of as normal waste.