Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Valve, Intake/Exhaust



Valve Dimensions

NOTE: Do not reface the valves, only lapping is permissible.

CAUTION Exhaust valves are filled with sodium and should not be scrapped without first observing certain precautions:
- Cut the valves in the center of the stem using a steel saw.
- Do not allow the valve or the sodium content to come in contact with water while sawing!
- Once valves have been cut in this manner; drop them ten at a time into a bucket filled with water. Stand back because a chemical reaction will occur. The valve can afterward be treated as common metal scrap.