Cylinder Head Assembly

Cylinder Head

Cylinder Head No.1 Bolts

Tightening torque
Cylinder head No.1* bolt (a): (20 Nm -> 40 Nm -> +60° -> +80° (2.0 kgf-m -> 4.1 kgf-m -> +60° -> +80°, 15.0 lbf-ft -> 29.5 lbf-ft -> +60° ->+80°))

c) Tighten cylinder head No.1 bolts (1) to 20 Nm (2.0 kgf-m, 15.0 lbf-ft) in numerical order ("1" - "10") evenly and gradually.
d) In the same manner as in Step c), retighten them to 40 Nm (4.1 kgf-m, 29.5 lbf-ft).
e) In the same manner as Step c), retighten them to 60°.
f) In the same manner as Step c), retighten them to 80°.


Cylinder Head No.2 Bolt

Tightening torque
Cylinder head No.2 bolt (b): 25 Nm (2.5 kgf-m, 18.5 lbf-ft)








Cylinder Head No.1 Bolt Inspection

Cylinder head No.1 bolt diameter measurement points
"a": 95.0 mm (3.74 in.)
"b": 130.0 mm (5.12 in.)

Cylinder head No.1 bolt diameter difference (deformation)
Limit (A - B): 0.25 mm (0.0098 in.)
















Distortion of mating surface of cylinder head and cylinder head gasket
Limit: 0.03 mm (0.0011 in.)









Distortion of seating face of intake manifold and exhaust manifold on cylinder head
Limit: 0.05 mm (0.0019 in.)












Camshaft Bearing Cap

Tightening torque
Camshaft housing bolt 11 Nm (1.1 kgf-m, 8.5 lbf-ft)

Tighten camshaft housing bolts in numerical order ("1" - "21") evenly and gradually.






Camshaft Gear/Sprocket Torque Specifications