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 Spring: Service and Repair

NOTE:
- Make sure the proper color-coded valve spring is installed.
- Make sure the valve springs are reassembled to their OWN ORIGINAL DAMPERS by pushing damper on the valve spring.
- DO NOT OPEN damper with any kind of tool when reassembling.
- Check new valve springs before installation.