Cylinder Head Assembly: Specifications

Cylinder Head

- Install new cylinder head bolts and tighten by hand.

Tighten cylinder head bolts in tightening sequence as follows:

Note: The longer cylinder head bolts must be inserted in the middle holes of the cylinder head.

Pretighten all bolts to 30 Nm
Then tighten all bolts to 50 Nm
Then tighten all bolts 1/4 turn (90°) turn further with a rigid wrench.
Then tighten all bolts again 1/4 turn (90°) further.
The rest of the assembly is basically in reverse order to the disassembling sequence.
Max. Permissible distortion 0.05 mm

Camshaft Bearing





A - Intake camshaft
- Tighten bearing caps 5 and 9 alternately and diagonally to 5 Nm and 1/8 turn (45°)
- Install bearing caps 1 and 13 and tighten to 5 Nm and 1/8 turn (45°)
- Install bearing cap 7 and tighten to 5 Nm and 1/8 turn (45°)
- Install bearing caps 3 and 11 and tighten to 5 Nm and 1/8 turn (45°)





B - Exhaust camshaft
- Tighten bearing caps 6 and 10 alternately and diagonally to 5 Nm and 1/8 turn (45°)
- Install bearing caps 2 and 14 and tighten to 5 Nm and 1/8turn (45°)
- Install bearing cap 8 and tighten to 5 Nm and 1/8 turn (45°)
- Install bearing caps 4 and 12 and tighten to 5 Nm and 1/8 turn (45°)
- Position camshafts in cylinder head to TDC No. 1 cylinder.

Exhaust Manifold Nut 25 Nm