Cylinder Head Specifications

Cylinder Head Bolt Tightening Sequence and Specification






Tighten the new cylinder head bolts in 3 passes in sequence - 1 through 5 - as follows:

Tighten the bolts to 40 Nm.

Tighten the bolts an additional 90° (1/4) turn.

Tighten the bolts an additional 90° (1/4) turn.

Then:

Tighten the new bolts - arrows - to 8 Nm.

Tighten the bolts - arrows - an additional 90° (1/4) additional turn.







Bolt Re-usability

Always Replace the cylinder head bolts.

Checking the Cylinder Head for Distortion





Procedure

Check the cylinder head at several locations for distortion using the 500 mm straight edge (VAS 6075) and a feeler gauge.

Max. permissible distortion: 0.05 mm












10 Cylinder Head Cover

• With integrated camshaft bearings.

• Clean the sealing surface, reworking is not permitted.

• Remove any old sealant residue.

11 Bolt

• Always replace.

• Tightening sequence and specification, refer to => [ Cylinder Head Cover Bolt Tightening Sequence and Specification ].

Cylinder Head Cover Bolt Tightening Sequence and Specification





Procedure

- Tighten the new cylinder head cover bolts in 3 passes in sequence - 1 through 6 - as follows:

- Tighten the bolts by hand.

- Tighten the bolts to 8 Nm.

- Tighten the bolts an additional 90° (1/4) turn.

• Ensure the cylinder head cover is not tilted.


Intake Manifold Torque & Sequence Specifications

Exhaust Manifold Torque & Sequence Specifications