TURBOCHARGER AS 4653458 - Caterpillar

Installation Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
B     1U-6684     Piston Ring Compressor     1    
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Ensure that the assemblies of the pistons and connecting rods are clean and free from damage.
Apply clean engine oil to the cylinder bore, to the piston rings, to the outer surface of the piston and to the connecting rod bearings.Note: Install the connecting rod bearings dry when clearance checks are performed. Refer to Disassembly and Assembly, "Bearing Clearance - Check". Apply clean engine oil to the connecting rod bearings during final assembly.
Rotate the crankshaft until the crankshaft pin is in the bottom center position. Lubricate the crankshaft pin with clean engine oil.
Illustration 1 g01352295
Piston from a turbocharged engine
Illustration 2 g01359137
The correct position of the piston ring gaps (AA) Ring gap of the top compression ring (BB) Ring gap of the intermediate compression ring (CC) Ring gap of the oil control ring
Align the piston ring gaps to the positions that are shown in Illustration 2. Install Tooling (B) onto piston (3). Ensure that Tooling (B) is installed correctly and that the piston can easily slide from the tool.Note: Use tape or rubber tubing on the connecting rod bolts to protect the crankshaft pin from damage. Ensure that the piston and the connecting rod assembly are installed in the correct cylinder.
Carefully push the piston and the connecting rod assembly into the cylinder bore and onto the crankshaft pin.Note: Use tape or rubber tubing on the connecting rod bolts to protect the crankshaft pin from damage. Ensure that the piston and the connecting rod assembly are installed in the correct cylinder.
Illustration 3 g01352319
Typical example
Remove the tape or rubber tubing on the connecting rod bolts. Install connecting rod cap (1) .Note: Ensure that number (X) on the connecting rod cap matches number (X) on the connecting rod. Ensure that the numbers are on the same side.
Install nuts (2). Tighten the nuts to a torque of 54 N m (40 lb ft).
Ensure that the installed connecting rod assembly has tactile side play. Rotate the crankshaft in order to ensure that there is no binding.
Repeat Steps 2 through 8 in order to install the remaining pistons and connecting rods.
If the engine is equipped with a balancer, install the balancer. Refer to Disassembly and Assembly, "Balancer - Install".End By:
Install the oil strainer and install the engine oil pan. Refer to Disassembly and Assembly, "Engine Oil Pan - Remove and Install".
Install the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Install".