Cylinder Head Assembly: Specifications

CYLINDER HEAD TORQUE & SEQUENCE

Cylinder Head Bolt





M12 Bolts
Step 1 34 Nm (25 ft. lbs.)
Step 2 54 Nm (40 ft. lbs.)
Step 3 Turn 90° (turn 90°)

M8 Bolts
Step 1 20 Nm (15 ft. lbs.)
Step 2 34 Nm (25 ft. lbs.)


SURFACE VARIATION - HEAD-TO-BLOCK

Inspect the cylinder head for out-of-flatness using a straightedge and a feeler gauge. If tolerances exceed 0.0508 mm (0.002 in.) replace the cylinder head.

INTAKE MANIFOLD TORQUE

Intake Manifold Bolts 12 Nm (9 ft. lbs.).
Tighten in sequence from the middle bolts towards the outside in a crisscross pattern.

EXHAUST MANIFOLD TORQUE & SEQUENCE









Exhaust Manifold to Cylinder Head 25 Nm (18 ft. lbs.).