Cylinder Head Assembly: Specifications

CYLINDER HEAD





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 must be examined BEFORE reuse. If the threads are necked down (2) the bolts should be replaced.

SURFACE VARIATION - HEAD-TO-BLOCK

Inspect the cylinder head for out-of-flatness, using a straightedge and a feeler gauge. If tolerances exceed 0.0508 mm (0.002 in.) replace the cylinder head.

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 TORQUE





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

CAMSHAFT GEAR

Camshaft Non - Oiled Sprocket Bolt 122 Nm (90 ft. lbs.).

EXHAUST MANIFOLD

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

Start at the center arm and work outward.