Cylinder Head Assembly
CYLINDER HEAD TORQUE AND SEQUENCELeft - Right:
Cylinder Head Bolt
First Pass 60 Nm (44 lb ft)
Final Pass 140 degrees
HEAD BOLT REUSE/REPLACE
Caution: This component uses torque-to-yield bolts. When servicing this component do not reuse the bolts, New torque-to-yield bolts must be installed. Reusing used torque-to-yield bolts will not provide proper bolt torque and clamp load. Failure to install NEW torque-to-yield bolts may lead to engine damage.
SURFACE VARIATION - HEAD-TO-BLOCK, HEAD-TO-MANIFOLDS
BLOCK
Cylinder Head Deck Surface Flatness 0.05 mm per 150 mm (0.0019 in per 5.905 in)
CYLINDER HEAD
Surface Finish - Maximum 2.8 RA
Surface Flatness - Block Deck 0.08 mm per 152 mm (0.003 in per 6 in)
Surface Flatness
Exhaust Manifold Deck 0.1 mm (0.004 in)
Intake Manifold Deck 0.1 mm (0.004 in)
INTAKE MANIFOLD TORQUE AND SEQUENCE
Lower Intake Manifold Bolt
Center
First Pass 7 Nm (62 lb in)
Final Pass 16 Nm (12 lb ft)
Corner
First Pass 13 Nm (10 lb ft)
Final Pass 25 Nm (18 lb ft)
Upper Intake Manifold Bolt/Stud 25 Nm (18 lb ft)
EXHAUST MANIFOLD TORQUE AND SEQUENCE
Exhaust Manifold Bolt 20 Nm (15 lb ft)