Engine Tightening Specifications

Intake:

Upper Engine:

Tighten the cylinder head bolts as described below.
Before installation, measure the length of each bolt. Replace any that exceed the maximum length.

Length: 133.7 - 134.3 mm (5.264 - 5.287 inch)
Maximum: 135.0 mm (5.315 inch)

Apply clean engine oil to the threads and the seat face of each bolt and install them.

Head Torque Sequence:

Tighten the bolts in two or three steps in the order shown.

Tightening torque:
23.1 - 25.9 Nm (17.0 - 19.1 ft. lbs.)







Put a paint mark on each bolt head.
Using the marks as a reference, tighten the bolts by turning each 85° - 95° in the sequence shown.
Further tighten each bolt by turning another 85° - 95°.

Timing Components:

Lower Engine: