Cylinder Head Assembly
SURFACE VARIATION - HEAD-TO-BLOCKDeck Surface Flatness (Max.)....0.1 mm (0.004 in.)
CYLINDER HEAD TORQUE & SEQUENCE
Tighten the cylinder head bolts 1-8 in sequence shown. Using the 4 step torque turn method, tighten according to the following values:
Step 1: Bolts 1 - 8 61 Nm (45 ft. lbs.)
Step 2: Bolts 1 - 8 88 Nm (65 ft. lbs.)
Step 3: Bolts 1 - 8 (again) 88 Nm (65 ft. lbs.)
Step 4: Bolts 1 - 8 turn an additional 1/4 Turn. (Do not use a torque wrench for this step.)
NOTE: Bolt torque after 1/4 turn should be over 122 Nm (90 ft. lbs.). If not, replace the bolt.
HEAD BOLT REUSE/REPLACE
The cylinder head bolts should be examined BEFORE reuse. If the threads are necked down, the bolts must be replaced.
INTAKE MANIFOLD TORQUE & SEQUENCE
Lower Intake Manifold
Initially tighten all bolts to 1 Nm (10 in lbs.). Finish tightening the bolts in two steps, first to 22 Nm (200 in. lbs.) in the sequence shown, then again to 22 Nm (200 in. lbs.) in the sequence shown.
Upper Intake Manifold
Install and tighten bolts in the sequence shown to 12 Nm (105 in. lbs.).
EXHAUST MANIFOLD TORQUE & SEQUENCE
Exhaust Manifold-Bolts 23 Nm (200 in. lbs.)