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
.