PISTON 7G5078 - Caterpillar

Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7573 Link Bracket 4
B 5P-3931 Anti-Seize Compound -
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: Repeat the procedure for each cylinder head.
Clean the surface of the cylinder head and the surface of the spacer plate. A new spacer plate gasket must be installed when the cylinder head is removed.
Illustration 1 g00760395
Install O-ring seal (19) on the dowel.
Ensure that the surface of the spacer plate gasket and the surface of the cylinder block are clean. Do not use a gasket adhesive on these surfaces.
Install a new spacer plate gasket (18) on the dowels in the cylinder block.
Illustration 2 g00760369
Install spacer plate (17) on the dowels.
Install four new seals (13) and (14) in spacer plate (17).
Install new O-ring seal (15) on the dowel.
Install cylinder head gasket (16).
Illustration 3 g00585054
The plug at Location (A) MUST be installed on engines that are equipped with a dry exhaust manifold. REMOVE the plug on engines that are equipped with a water cooled exhaust manifold.
Illustration 4 g00760306
Install Tooling (A) and attach a suitable lifting device to the cylinder head. Position cylinder head (11) on the spacer plate. Remove Tool (A).
Install bolts (10) and bolts (12) in the cylinder head.
Illustration 5 g00585055
Use the following procedure to tighten the cylinder head bolts.
Apply Tooling (B) to the threads of the cylinder head bolts.
Tighten bolt (1) through bolt (8) in a numerical sequence to a torque of 30 5 N m (22 4 lb ft).
Tighten bolt (1) through bolt (8) again in a numerical sequence to a torque of 270 35 N m (200 26 lb ft).
Tighten bolt (1) through bolt (8) again in a numerical sequence to a torque of 450 20 N m (330 15 lb ft).
Tighten bolt (9) and bolt (10) to a torque of 55 10 N m (40 7 lb ft).
Illustration 6 g00760271
Install gasket (8) and exhaust elbow (9).
Illustration 7 g00760018
Install new gaskets (6) and tube (4) that runs from the water manifold to the cylinder head.
Install new gasket (7) and air inlet elbow (5).
Illustration 8 g00760142
Install exhaust temperature sensor (3) in the cylinder head.
Illustration 9 g00759319
Install valve cover base (2) on the cylinder head .
Install bracket (1) on the water manifold.
Fill the cooling system to the correct level with coolant. Refer to the Operation and Maintenance Manual for the correct filling procedure. End By:
Install the rocker shaft assemblies and the pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Push Rods - Install".