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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Valve Guide: Service and Repair


1. For best results, heat cylinder head to 300°F (150°C) before removing or installing valve guides.
2. Drive valve guide out bottom of cylinder head using suitable tool.
3. Reheat cylinder head if necessary.
4. Using suitable valve guide installation tool, drive valve guide into place until tool bottoms.