Cylinder Head, Valvetrain - Fastener Tightening Specifications

Fastener Tightening Specifications






• 1 Always replace

• 2 Install with locking compound, refer to the Parts Catalog

• 3 Engine code CBFA only

• 4 Left hand threads

Crankcase Ventilation Bolt Tightening Sequence and Specification





- Tighten the crankcase ventilation bolts in sequence - 1 through 10 - to 11 Nm.

Cylinder Head Cover Bolt Tightening Sequence and Specification





- Replace the bolts.

• Hand tighten the bolts in several stages in sequence - 1 through 6 -.

• Tighten the bolts in sequence - 1 through 6 - to 8 Nm.

• Tighten the bolts in sequence - 1 through 6 - an additional 90 degrees (1/4) turn.

Cylinder Head Bolt Tightening Sequence and Specification





- Tighten the cylinder head bolts in sequence - 1 through 5 -.

• Tighten the bolts to 40 Nm.

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

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

• Tighten the bolts - arrows - to 8 Nm.

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

Upper Timing Chain Cover Bolt Tightening Sequence and Specification





- Tighten the bolts - 1 through 5 - in 2 passes in the sequence shown:

1 - Tighten the bolts by hand.

2 - Tighten the bolts to 9 Nm.

Lower Timing Chain Cover Bolt Tightening Sequence and Specification





- Tighten the bolts - 1 through 15 - in 2 passes in the sequence shown:

1 - Tighten the bolts to 8 Nm.

2 - Tighten the bolts an additional 45 degrees (1/8) turn.

Intermediate Shaft Sprocket Bolt Tightening Sequence and Specification






Always replace the intermediate shaft sprocket. Otherwise the backlash will not adjust itself and it could result in engine damage. The new intermediate shaft sprocket has an anti-friction coating that wears off after a short period of use, which automatically adjusts the backlash.

- Tighten the bolt to 10 Nm.

- Turn the chain sprocket.

The chain sprocket may not have any play; if so, loosen and tighten again.

- Tighten the bolt to 30 Nm.

- Tighten the bolt an additional 90 degrees (1/4) turn.








Intake Manifold


For tightening specifications Refer to => [ Intake Manifold Overview ] Intake Manifold Overview.


Intake Manifold Support

Bolt
23 Nm

Nut
10 Nm

Bolt
5 Nm








Exhaust Manifold Torque & Sequence





Replace nuts
Coat exhaust manifold studs with hot bolt paste
First pass 5 Nm
Second pass 12 Nm
Third pass 16 Nm
Final pass 25 Nm

Turbocharger Fastening Strip Nuts 30 Nm
Replace nuts
Coat studs with hot bolt paste