Special Tools
 
J 45059 
 Angle Meter
Removal Procedure
- Drain the cooling system. Refer to 
Cooling System Draining and Filling
.
 
- Remove the generator bracket. Refer to 
Generator Bracket Replacement
 .
 
- Remove the intake manifold. Refer to 
Lower Intake Manifold Replacement
 .
 
- Remove the right exhaust manifold. Refer to 
Exhaust Manifold Replacement - Right Side
 .
 
- Remove the right pushrods. Refer to 
Valve Rocker Arm and Push Rod Replacement
 .
 
- Remove the generator bracket stud from the cylinder head.
 
- Remove the spark plugs.
 
- Remove the spark plug wire support bolts and support.
 
- Remove and discard the cylinder head bolts.
 
- Remove the cylinder head.
 
- Remove and discard the cylinder head gasket.
 
- Remove the cylinder head locator pins, if necessary.
 
- Clean and inspect the cylinder head, if necessary. Refer to 
Cylinder Head Cleaning and Inspection
 .
 
- Disassemble the cylinder head, if necessary. Refer to 
Cylinder Head Disassemble
 .
 
Installation Procedure
- Assemble the cylinder head, if necessary. Refer to 
Cylinder Head Assemble
 .
 
- Install the cylinder head locator pins, if necessary.
 
Important: Do not use any type of sealer on the cylinder head gasket.
- Install a NEW cylinder head gasket. 
 
- Install the cylinder head.
 
- Apply sealant to the threads of NEW cylinder head bolts. Refer to 
Adhesives, Fluids, Lubricants, and Sealers
 for the correct part number.
 
- Install the cylinder head bolts finger tight.
 
Notice: Refer to Fastener Notice in the Preface section.
- Tighten the cylinder head bolts using the sequence shown.
 
Tighten
|     •  | Tighten the bolts a first pass to 30 N·m (22 lb ft).  | 
 
|     •  | Tighten the long bolts (1, 4, 5, 8, 9) a final pass to 75 degrees using 
J 45059 
 . | 
 
|     •  | Tighten the medium bolts (12, 13) a final pass to 65 degrees using 
J 45059 
 . | 
 
|     •  | Tighten the short bolts (2, 3, 6, 7, 10, 11) a final pass to 55 degrees using 
J 45059 
 . | 
 
- Install the spark plug wire support and bolts.
 
Tighten
Tighten bolts to 12 N·m (106 lb in).
- Install the spark plugs.
 
- If installing NEW spark plugs measure for the correct gap. Adjust the spark plug gap, if necessary.
 
Specification
Spark plug gap to 1.52 mm (0.060 in).
Tighten
|     •  | Tighten the plugs on a USED cylinder head to 15 N·m (11 lb ft). | 
 
|     •  | Tighten the plugs on the initial installation of a NEW cylinder head to 30 N·m (22 lb ft). | 
 
- Install the generator bracket stud.
 
Tighten
Tighten the stud to 20 N·m (15 lb ft).
- Install the right pushrods. Refer to 
Valve Rocker Arm and Push Rod Replacement
 .
 
- Install the exhaust manifold. Refer to 
Exhaust Manifold Replacement - Right Side
 .
 
- Install the intake manifold. Refer to 
Lower Intake Manifold Replacement
 .
 
- Install the generator bracket. Refer to 
Generator Bracket Replacement
 .
 
- Fill the cooling system. Refer to 
Cooling System Draining and Filling
 .