Tools Required
Removal Procedure
- Remove the engine cover. Refer to
Engine Cover Replacement
in Interior Trim.
- Remove the generator bracket. Refer to
Generator Replacement
in Engine Electrical.
- Remove the coolant air bleed pipe. Refer to
Coolant Air Bleed Pipe Assembly Replacement
in Engine Cooling.
- Remove the left exhaust manifold. Refer to
Exhaust Manifold Replacement - Left Side
in Engine Exhaust.
- Remove the pushrods. Refer to
Valve Rocker Arm and Push Rod Replacement
.
Important: The cylinder head bolts are NOT reusable.
- Remove the cylinder head bolts.
Notice: After removal, place the cylinder head on 2 wood blocks in order to prevent damage to the sealing
surfaces.
- Remove the cylinder head.
- Remove the cylinder head gasket.
- Discard the gasket.
- Discard the cylinder head bolts.
- Clean and inspect the cylinder head. Refer to
Cylinder Head Cleaning and Inspection
.
Installation Procedure
Caution: Wear safety glasses in order to avoid eye damage.
Notice: Clean all dirt, debris, and coolant from the engine block cylinder head
bolt holes. Failure to remove all foreign material may result in damaged threads,
improperly tightened fasteners or damage to components.
Important:
• | Do not reuse the cylinder head bolts. Install NEW cylinder head bolts during assembly. |
• | Do not use any type of sealant on the cylinder head gasket (unless specified). |
• | The cylinder head gaskets must be installed in the proper direction and position. |
- Clean the engine block cylinder head bolt holes (if required).
Thread repair tool J 42385-107, found in
J 42385-200
may be used to clean the threads of old threadlocking material.
- Spray cleaner into the holes. Refer to
Adhesives, Fluids, Lubricants, and Sealers
for the correct part number.
- Clean the cylinder head bolt holes with compressed air.
- Check the cylinder head locating pins for proper installation.
Important: When properly installed, the tab on the left cylinder head gasket will be located left of center or closer to the front of the engine.
- Inspect the displacement markings (1) on the gasket for proper usage.
- Install the NEW left cylinder head gasket onto the locating pins.
- Install the cylinder head onto the locating pins and gasket.
- Install the NEW cylinder head bolts.
Notice: Refer to Fastener Notice in the Preface section.
- Tighten the cylinder head bolts.
Tighten
- Tighten the M11 cylinder head bolts a first pass in sequence to 30 N·m (22 lb ft).
- Tighten the M11 cylinder head bolts a second pass in sequence to 90 degrees using
J 45059
.
- Tighten the M11 cylinder head bolts (1,2,3,4,5,6,7,8) to 90 degrees and the M11 cylinder head bolts (9 and 10) to 50 degrees a final pass in sequence using
J 45059
.
- Tighten the M8 cylinder head bolts (11,12,13,14,15) to 30 N·m (22 lb ft). Begin with the center bolt (11) and alternating side-to-side, work outward tightening all of the bolts.
- Install the pushrods. Refer to
Valve Rocker Arm and Push Rod Replacement
.
- Install the left exhaust manifold. Refer to
Exhaust Manifold Replacement - Left Side
in Engine Exhaust.
- Install the coolant air bleed pipe. Refer to
Coolant Air Bleed Pipe Assembly Replacement
in Engine Cooling.
- Install the generator bracket. Refer to
Generator Replacement
in Engine Electrical.
- Install the engine cover. Refer to
Engine Cover Replacement
in Interior Trim.