DOOR AS-ACCESS 4266407 - Caterpillar

Note: Thoroughly clean the spacer plate and the bottom surface of the cylinder head. A new spacer plate gasket must be installed when the cylinder head is removed.
Illustration 1 g00632049
Apply a thin film of clean engine oil to O-ring seal (26). Install O-ring seal (26).
Illustration 2 g00632048
Install a new spacer plate gasket (25).
Install the spacer plate on the engine.
Illustration 3 g00632047
Apply a thin film of clean engine oil to O-ring seal (22). Install O-ring seal (22).
Install water seals (23) dry.
Install seal (24) in the spacer plate.
Illustration 4 g00580833
Install a new cylinder head gasket (21).
Illustration 5 g00580812
Attach a suitable lifting device to cylinder head (8). Carefully position cylinder head (8) on the spacer plate. The weight of the cylinder head is approximately 235 kg (518 lb).
Illustration 6 g00513934Note: The bolts that are Marked “X” are 216 mm (8.5 inch) long. The remainders of the bolts are 194 mm (7.6 inch) in length.
Apply a small amount of Tooling (A) to the bolt threads and both sides of the washers. Install the cylinder head bolts. Tighten the cylinder head bolts, as follows.
In a numerical sequence, tighten bolts 1 through 26 to a torque of 270 15 N m (200 11 lb ft).
In a numerical sequence, tighten bolts 1 through 26 to a torque of 450 15 N m (330 11 lb ft).
In a numerical sequence, again tighten bolts 1 through 26 to a torque of 450 15 N m (330 11 lb ft).
Illustration 7 g00580810
Install spacers (17) and bolts (18) that fasten bracket (19) to the cylinder head.
Illustration 8 g00580808
Connect the harness assembly to sensor (14), sensor (15), and ground stud (16).
Install the bolt and support clip (13) for the harness assembly.
Illustration 9 g00580807
Install hose assemblies (10). Install the bolt and clamp (9).Note: If the engine is not equipped with an air compressor, skip Step 14.
Connect hose assemblies (11) and hose assemblies (12) to the air compressor.
Illustration 10 g00580805
Connect hose assembly (7) to cylinder head (8).
Illustration 11 g00576240
Illustration 12 g00576839
Install O-ring seals (5) and (6) in seal assembly (3). Lubricate seal (6) with Tooling (B).
Assemble thrust plate (1) and seal assembly (3). Apply Tooling (C) to bolts (2). Hold the assembly in position and install bolts (2). Evenly tighten bolts (2) until seal assembly (3) and O-ring seal (5) are seated against the cylinder head.Note: Be careful to ensure that O-ring seal (5) stays in the groove in seal assembly (3).
Install adapter (4). Ensure that the dowel in adapter (4) engages the hole in the camshaft.End By:
Install the camshaft gear. Refer to Disassembly and Assembly, "Camshaft Gear - Remove and Install".
Install the electronic unit injectors. Refer to Disassembly and Assembly, "Electronic Unit Injector - Install".
Install the valve mechanism cover base. Refer to Disassembly and Assembly, "Valve Mechanism Cover Base - Remove and Install".
Install the exhaust manifold. Refer to Disassembly and Assembly, "Exhaust Manifold - Remove and Install".
Install the water temperature regulator. Refer to Disassembly and Assembly, "Water Temperature Regulator - Remove and Install".