CONTROL GP-COMMUNICATION 5441881 - Caterpillar

Start By:a. remove rocker shaft assemblies and push rods1. Drain the coolant from the cooling system. 2. Remove the bolt that holds clip (1) to the bracket.3. Remove bolts (3) and (4), valve cover base (2) and the gasket from the cylinder head assembly. 4. Remove elbows (5) and (6) as a unit. 5. Remove four bolts (7) that hold air inlet elbow (9).6. Remove four bolts (8) that hold exhaust elbow (10). 7. Install tooling (A) an a hoist. Remove all bolts (12) and (13). Remove cylinder head assembly (11). The weight of the cylinder head assembly is 50 kg (110 lb).8. Remove the head gasket, the seals, the spacer plate and spacer plate gasket from the engine. See the topic, Remove Spacer Plate.Install Cylinder Head Assemblies
Thoroughly clean the spacer plate and bottom surface of the cylinder head assembly. A new spacer plate gasket must be installed when the cylinder head assembly is removed.1. Install the spacer plate gasket, the spacer plate and the head gasket. Do not use any adhesives. See the topic, Install Spacer Plate.
Location of two 3/8 inch bolts.2. Install the gaskets for the exhaust manifold and air inlet.3. Using tooling (A) and a hoist, install the cylinder head assembly on the spacer plate.4. Put clean engine oil on the threads of cylinder head bolts (12). Install cylinder head bolts (12) and the washers. Tighten bolts (12) in the following sequence: a. Tighten all of the bolts to a torque of 30 5 N m (22 4 lb ft).b. Tighten bolts 1 through 8 in number sequence to a torque of 270 35 N m (200 25 lb ft).c. Tighten bolts 1 through 8 in number sequence to a torque of 450 20 N m (330 15 lb ft).5. Tighten the two 3/8 inch bolts (13) to a torque of 55 10 N m (40 7 lb ft). 6. Install bolts (7) to hold air inlet elbow (9) to the cylinder head assembly.7. Put 5P3931 Anti-Seize Compound on the threads of bolts (8). Install bolts (8) to hold exhaust manifold (10) to the cylinder head. 8. Put Glyercin on the O-ring seals of elbow (5) and (6). Install elbow (5) and (6) as a unit, the gasket and the bolts. 9. Make sure the O-ring seals are installed around the two dowels in the bottom of valve cover base (2). Install the gasket, valve cover base (2) and the bolts.10. Fill the cooling system with coolant to the correct level. See the Maintenance Manual.End By:a. install rocker shaft assemblies and push rods