Cylinder Head Assembly: Specifications

CYLINDER HEAD





Cylinder Head M8 Bolts - in Sequence 30 Nm (22 lb ft)

Cylinder Head M11 Bolts
First Pass in Sequence 30 Nm (22 lb ft)
Second Pass in Sequence 90 degrees
Final Pass in Sequence 70 degrees

HEAD BOLT REUSE/REPLACE

Notice: Do not use the cylinder head bolts again. Install NEW cylinder head bolts during assembly. Do not use any type of sealant on the cylinder head gasket, unless specified.

The cylinder head bolts are of a torque-to-yield design and are NOT to be reused

SURFACE VARIATION

Cylinder Head

Surface Flatness - Block Deck
Measured Within a 152.4 mm (6.0 in) Area 0.08 mm (0.003 in)
Measuring the Overall Length of the Cylinder Head 0.1 mm (0.004 in)

Cylinder Block

Cylinder Head Deck Surface Flatness
Measured Within a 152.4 mm (6.0 in) Area 0.11 mm (0.004 in)
Measuring the Overall Length of the Block Deck 0.22 mm (0.008 in)

Surface Flatness
Exhaust Manifold Deck 0.13 mm (0.005 in)
Intake Manifold Deck 0.08 mm (0.0031 in)

INTAKE MANIFOLD

Intake Manifold Bolts
First Pass in Sequence 5 Nm (44 lb in)
Final Pass in Sequence 10 Nm (89 lb in)

EXHAUST MANIFOLD

Exhaust Manifold Bolts
First Pass 15 Nm (11 lb ft)
Final Pass 20 Nm (15 lb ft)