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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Cylinder Head Bolt Torque and Sequence






Install the NEW cylinder head bolts.

Tighten the bolts in sequence to 50 Nm (37 lb ft).

Rotate each bolt 120 degrees in sequence. Use Torque Angle Meter.

Rotate the center four bolts an additional 30 degrees. Use Torque Angle Meter.