Cylinder Head Assembly: Specifications

Cylinder Head Bolts

Inspection
Using a vernier caliper, measure the length of the cylinder head set bolt from the seat to the end.









Standard length 146.8 to 148.2 mm (5.78 to 5.83 in.)
Maximum length 149.2 mm (5.87 in.)

Using a vernier caliper, measure the diameter of the threaded portion of the bolt at its thinnest point. Use a straightedge to determine the thinnest point of the threaded portion of the bolt.

Measurement point 115 mm (4.53 in.)
Standard diameter 9.77 to 9.96 mm (0.385 to 0.392 in.)
Minimum diameter 9.4 mm (0.370 in.)

Tightening Sequence





First pass 49 Nm (500 kgf-cm, 36 ft-lbf) in several steps
Second pass Tighten 90°
Final pass Tighten 45°

Cylinder Head Inspection

Using a precision straightedge and feeler gauge, measure the warpage of the contact surfaces where the cylinder head contacts the cylinder block and manifold.









Maximum Warpage
Cylinder block side 0.05 mm (0.00197 in.)
Intake manifold side 0.10 mm (0.00394 in.)
Exhaust manifold side 0.10 mm (0.00394 in.)

Camshaft Bearing Cap Bolts

Step 1

Tighten the 10 bolts in the order shown in the illustration.





Torque : 16 Nm (163 kgf-cm, 12 ft-lbf)

Step 2





Install the camshaft housing with the 17 bolts and tighten them in the order shown in the illustration.

Torque : 27 Nm (275 kgf-cm, 20 ft-lbf)


Intake Manifold Fasteners Specifications

Exhaust Manifold Nuts Specifications

Camshaft Timing Sprocket and Timing Gear Assembly Bolts Specifications