SEAL-O-RING 4D0449 - Caterpillar

Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7575 Link Bracket 2
B 5P-3931 Anti-Seize Compound -
C -(1) Nickel-based, anti-seize compound -
(1) Refer to Technical Information Bulletin, TIBU 5269 for Manufacturer Part Numbers.
Illustration 1 g01086765
Install O-ring seal (25) and gasket (24) onto the engine block.
Illustration 2 g01086764
Install spacer plate (22).
Install head gasket (19), seals (20), seals (21), and O-ring seal (23) onto spacer plate (22).
Illustration 3 g01086762
Illustration 4 g01086760
Illustration 5 g01089250
Attach Tooling (A) and a suitable lifting device to cylinder head (4). The weight of cylinder head (4) is approximately 50 kg (110 lb).
Position cylinder head (4).
Clean bolts (17).
Apply engine oil to the threads of bolts (17) and install bolts (17).
Tighten bolts (17) in the numerical order shown to a torque of 30 5 N m (22 4 lb ft).
Tighten bolts (17) again in the numerical order shown to a torque of 200 15 N m (148 11 lb ft).
Retighten bolts (17) in the numerical order shown to a torque of 200 15N m (148 11 lb ft).
Turn bolts (17) in the numerical sequence shown to an angle of 180 5°.
Tighten bolts (18) to a torque of 55 10 N m (40 7 lb ft).
Position the gasket onto cylinder head (4).
Illustration 6 g01086759
Connect adapter assembly (13).
Install bolts (14).
Install the O-ring seals and elbow (16).
Install the O-ring seals and elbow (15).
Illustration 7 g01086757
Position gasket (11) and O-ring seals (12) onto cylinder head (4).
Illustration 8 g01086755
Position cover assembly (9) onto cylinder head (4).
Install bolts (10).
Illustration 9 g01086753
Position exhaust manifold (6) and the seal onto cylinder head (4).
Position clamps (8) onto exhaust manifold (6).
Install bolts (7).
Apply Tooling (B) to bolts (5). Simultaneously tighten the diagonally opposite bolts (5) to the following torque 55 5 N m (41 4 lb ft).
If necessary, install the thermocouples on exhaust manifold (6). Apply Tooling (C) to the thermocouples prior to installation. If the thermocouples are straight, tighten the nuts to a torque of 25 5 N m (18 4 lb ft). If the thermocouples have a 90 degree bend, tighten the nuts to a torque of 12 3 N m (105 27 lb in).
Illustration 10 g01086752
Install shield assemblies (3).
Illustration 11 g01086750
Install plate (2).
Install bolts (1).
Fill the cooling system. Refer to Operation and Maintenance Manual, "Refill Capacities and Recommendations".End By:
Install the rocker shaft and the pushrod. Refer to Disassembly and Assembly, "Rocker Shaft and Push Rod - Install".