Cylinder Head Assembly

Cylinder head





Tighten cylinder head in tightening sequence as follows:

Pre-tighten all bolts to 40 Nm.

Then tighten all bolts 90° (1/4 turn) further using a rigid wrench.

Finally, tighten all bolts 90° (1/4 turn) further using a rigid wrench.

Checking cylinder head for distortion
Max. permissible distortion 0.1 mm

Minimum distance between straight edge positions 100 mm

Camshaft bearing cap
Tighten bearing caps 2 and 4, using alternate and diagonal sequence, to 20 Nm.

Lightly coat bearing cap 1 contact surface with sealant D 454 300 A2.

Install bearing caps 3, 1 and 5 and also tighten to 20 Nm.