Cylinder Head Assembly

Cylinder Head Torque





Step 1: Tighten bolts 1-8 27 Nm (20 ft. lbs.).
Step 2: Verify that bolts 1-8 all reached 27 Nm (20 ft. lbs.), by repeating step 1 without loosening the bolts. Tighten bolts 9 thru 12 to 14 Nm (10 ft. lbs.).
Step 3: Tighten bolts 1-8 90 °.
Step 4: Tighten bolts 1-8 90 °, again. Tighten bolts 9-12, 26 Nm (19 ft. lbs.)

Head Bolt Reuse/Replace





The cylinder head bolts are tightened using a torque plus angle procedure. The bolts must be examined BEFORE reuse. If the threads are necked down the bolts should be replaced.

Surface Variation - Warpage

Cylinder Head Warpage (Flatness) 0.0508 mm (0.002 in.)

Intake Manifold





Intake Manifold Bolts 12 Nm (105 in.lbs.)

Camshaft Bearing Cap





Camshaft Bearing Cap Bolts 11 Nm (100 in.lbs.)

Exhaust Manifold

Exhaust Manifold Bolts 25 Nm (18 ft.lbs.)

Start at the center arm and working outward.