Cylinder Head Assembly: Specifications

Cylinder Head Tightening Sequence

Replace bolts which have been tightened to torque.





Tighten bolts in 4 stages in sequence - 1 to 20 - as follows:
Tighten bolts by hand
Tighten 30 Nm
Tighten 50 Nm
Tighten an additional 1/2 turn (180°)

Checking Cylinder Head for Distortion





Measure at several places with straight edge and feeler gauge.

Permissible distortion:

Maximum 0.05 mm

Camshaft Bearing Cap Installation Location





Points - arrow A - of intake and exhaust camshaft bearing caps face outwards.

Identification on bearing caps is legible when read from intake side.


Intake Camshaft - A - Tightening Sequence





Tighten nuts in 5 stages as follows:

1. Install bearing cap 5 and 9 nuts alternating and diagonally as far as stop.

2. Tighten bearing cap 5 and 9 nuts to 5 Nm + 1/8 additional turn (45°).

3. Tighten bearing cap 1 and 13 nuts to 5 Nm + 1/8 additional turn (45°).

4. Tighten bearing cap 7 nuts to 5 Nm + 1/8 additional turn (45°).

5. Tighten bearing cap 3 and 11 nuts to 5 Nm + 1/8 additional turn (45°).

Exhaust Camshaft - B - Tightening Sequence





Tighten nuts in 5 stages as follows:

1. Install bearing cap 6 and 10 nuts alternately and diagonally as far as stop.

2. Tighten bearing cap 6 and 10 nuts to 5 Nm + 1/8 additional turn (45°).

3. Tighten bearing cap 2 and 14 nuts to 5 Nm + 1/8 additional turn (45°).

4. Tighten bearing cap 8 nuts to 5 Nm + 1/8 additional turn (45°).

5. Tighten bearing cap 4 and 12 nuts to 5 Nm + 1/8 additional turn (45°).

Intake Manifold Specifications

Exhaust Manifold Specifications

Camshaft Gear/Sprocket Specifications