3412E, C30 and C32 Marine Engines Caterpillar

Pistons and Connecting Rods - Install

Usage:

Installation Procedure

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Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	9S-9082	Engine Turning Tool	1
B	200-3914	Piston Ring Compressor	1
C	4C-5593	Anti-Seize Compound	1

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NOTICE

Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

Apply clean engine oil to the pistons, the piston rings, and the cylinder liners.

Use Tooling (A) to position the rod bearing journal that is being serviced in the bottom center position.

Note: The number on the bearing cap must be on the same side as the connecting rod. The number on the bearing cap must match the number on the connecting rod.

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Illustration 1	g01096076

Use Tooling (B) and a soft hammer to install piston (2) and the connecting rod in the cylinder liner.

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Illustration 2	g01096077

The connecting rod and the piston must be installed in the engine with Surface (X) toward the crankshaft main bearing journal. Surface (Y) must be toward the connecting rod.
Note: Surface (X) is thicker than Surface (Y) .
Note: Surface (X) is chamfered in order to fit the crankshaft.

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Illustration 3	g00568813

Apply Tooling (C) to the threads of the bolts on the connecting rod. Install the bearing cap and the nuts. Tighten nuts (1) on the bearing cap to a torque of 82 ± 8 N·m (60 ± 6 lb ft). Place a mark on each nut and on each bearing cap. Tighten each nut for an additional 120 ± 5 degrees.

End By:

Install the engine oil pump. Refer to Disassembly and Assembly, "Engine Oil Pump - Install".
Install the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Install".