Cylinder Head Assembly: Specifications

Cylinder Head
The cylinder head must not have depressions deeper than 0.0254 mm (0.001 inch) across a 38.1 mm (1.5 inch) square area, or scratches more than 0.0254 mm (0.001 inch).

Cylinder Head Bolts








The cylinder head bolts must be discarded and new bolts installed. They are tighten-to-yield designed and cannot be reused.

First pass 40 Nm (30 ft. lbs).
Second pass Tighten 90°
Third pass Loosen all bolts minimum one full turn
Fourth pass 40 Nm (30 ft. lbs).
Fifth pass Tighten 90°
Final pass Tighten 90°

Intake Manifold Bolts





First pass 2 Nm (18 inch lbs).
Final pass 25 Nm (18 ft. lbs).

Camshaft bearing cap bolts 10 Nm (89 inch lbs).





Camshaft Sprocket Bolts
First pass 40 Nm (30 ft. lbs).
Final pass Tighten 90°

Exhaust Manifold-To-Cylinder Head

Discard the exhaust manifold nuts and studs.

Studs 12 Nm (9 ft. lbs).

Nuts 20 Nm (15 ft. lbs).