3406E On-Highway Engine Caterpillar

Removal Procedure

Start By:

1. Remove the crankshaft rear seal. Refer to Disassembly and Assembly, "Crankshaft Rear Seal - Remove".

2. Remove the electric starting motor. Refer to Disassembly and Assembly, "Electric Starting Motor - Remove and Install".

3. Remove the engine oil pan. Refer to Disassembly and Assembly, "Engine Oil Pan - Remove and Install".

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Illustration 1	g00516618

1. Install Tool (A) and a hoist to flywheel housing (2).

2. Remove bolts (1). Remove flywheel housing (2) from the dowels in the cylinder block. The weight of the flywheel housing is 32 kg (71 lb).

Installation Procedure

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Illustration 2	g00633281

Note: During assembly, inspect the following components for any foreign materials: the front face of the flywheel housing, the two sides of the flywheel housing gasket, and the rear face of the cylinder block. These components must be free of the following substances: oil fuel, water, gasket adhesive, assembly compounds, and any other foreign material. Apply a small amount of 8T-9022 Silicone Gasket at joint of the following components: the flywheel housing, the engine oil pan and the cylinder block.

1. Install Tool (A) and a hoist to the flywheel housing. Install bolt (1) through bolt (24). Use the following procedure in order to tighten the bolts:

   1. In a numerical sequence, tighten bolt 1 through bolt 24 to a torque of 40 ± 10 N·m (30 ± 7 lb ft).

   2. In a numerical sequence, again tighten bolt 1 through bolt 9 to a torque of 135 ± 20 N·m (100 ± 15 lb ft).

   3. In a numerical sequence, again tighten bolt 10 through bolt 24 to a torque of 55 ± 10 N·m (40 ± 7 lb ft).

2. The maximum permissible change from an exact vertical face at four points (25) is 0.38 mm (0.015 inch).

3. Apply 5P-3413 Pipe Sealant to the threads of plug (26). Tighten the plugs to a torque of 9.5 ± 1.5 N·m (84 ± 13 lb in).

End By:

1. Install the engine oil pan. Refer to Disassembly and Assembly, "Engine Oil Pan - Remove and Install".

2. Install the electric starting motor. Refer to Disassembly and Assembly, "Electric Starting Motor - Remove and Install".

3. Install the crankshaft rear seal. Refer to Disassembly and Assembly, "Crankshaft Rear Seal - Install".