Torque & Tightening Sequence

Tighten cylinder head in tightening sequence as follows:

Pretighten all bolts to 40 Nm
Then tighten all bolts a 1/4 turn (90°) further using a rigid wrench.
Then tighten all bolts again a 1/4 turn (90°) further.

Note: There is no requirement to retighten the cylinder head bolts after repairs