Heads and valves torque

This engine is equipped with hydraulic valve lash adjusters. No adjustment is required.

New cylinder head bolts must be installed. They are torque-to-yield designed and cannot be reused.

Cylinder head bolts

First pass
Tighten to 50 Nm (37 ft. Lbs.)

Second pass
Loosen bolts one full turn

Third pass
Tighten to 30 Nm (22 ft. Lbs.)

Fourth pass
Tighten 90°

Final pass
Tighten 90°