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)

Or, hide this message: temporarily or permanently

Cylinder Head Bolt Torque and Sequence











Tightening Sequence:






10 mm CYLINDER HEAD BOLT;
a. Tighten in sequence to 30 Nm (300 kg. cm, 22 ft. lbs.).
b. Turn in sequence 60°- 65°.
c. Turn in sequence an additional 60°- 65°.
12 mm CYLINDER HEAD BOLT;
a. Tighten in sequence to 35 Nm (350 kg. cm, 26 ft. lbs.).
b. Turn in sequence 60°- 65°
c. Turn in sequence an additional 60°- 65°.