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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Tightening Sequence



Cylinder Head Bolts Tightening Sequence:

Threaded Connection Tightening Torque






Tighten All Bolts: Hand-tight

Tighten All Bolts To: 30 Nm

Then tighten all bolts to: 50 Nm

Then Turn All Bolts: 1/4 Rotation (90 °)

Then Turn All Bolts An Additional 1/4 Rotation (90 °)

Always Replace Cylinder Head Bolts