Cylinder Head Assembly

Important: Install the NEW cylinder head bolts finger tight.





Cylinder Head Bolt - Preferred Method
^ All Bolts First Pass in Sequence 30 Nm (22 ft. lbs.)
^ Long Bolt Final Pass in Sequence 75 degrees
^ Medium Bolt Final Pass in Sequence 65 degrees
^ Short Bolt Final Pass in Sequence 55 degrees
Cylinder Head Bolt - Optional On-Vehicle Strategy
^ First Pass in Sequence 35 Nm (26 ft. lbs.)
^ Second Pass in Sequence 60 Nm (44 ft. lbs.)
^ Final Pass in Sequence 90 Nm (66 ft. lbs.)
Cylinder Head Core Hole Plug 20 Nm (15 ft. lbs.)
Engine Flywheel Bolt 100 Nm (74 ft. lbs.)
Exhaust Manifold Bolt/Stud
^ First Pass 15 Nm (11 ft. lbs.)
^ Final Pass 30 Nm (22 ft. lbs.)





Lower Intake Manifold Bolt
^ First Pass in Sequence 3 Nm (27 inch lbs.)
^ Second Pass in Sequence 12 Nm (106 inch lbs.)
^ Final Pass in Sequence 15 Nm (11 ft. lbs.)
Upper Intake Manifold Stud
^ First Pass 5 Nm (44 inch lbs.)
^ Final Pass 9 Nm (80 inch lbs.)
Throttle Body Stud 9 Nm (80 inch lbs.)
Cylinder Head Deck Surface Flatness 0.050-0.152 mm (0.002-0.006 inch)
Camshaft Retainer Bolt 12 Nm (106 inch lbs.)
Camshaft Sprocket Bolt 25 Nm (18 ft. lbs.)
Camshaft
Camshaft End Play 0.0254-0.2286 mm (0.0010-0.0090 inch)
Camshaft Journal Diameter 47.440-47.490 mm (1.8677-1.8696 inch)
Camshaft Journal Out-of-Round 0.008 mm (0.0003 inch)
Camshaft Lobe Lift - Exhaust 7.0953 mm (0.2793 inch)
Camshaft Lobe Lift - Intake 6.8678 mm (0.2704 inch)
Camshaft Runout 0.100 mm (0.0039 inch)
Exhaust Manifold
Surface Flatness - Flange to Flange 0.25 mm (0.010 inch)
Surface Flatness - Individual Flange 0.05 mm (0.002 inch)
Intake Manifold Surface Flatness 0.10 mm (0.004 inch)