3406E TRUCK ENGINE Caterpillar


Flywheel Housing

Usage:

Remove and Install Flywheel Housing

Start By:

a. Remove crankshaft rear seal. Refer to Disassembly and Assembly. "Crankshaft Rear Seal-Remove".

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


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.



Illustration 100


Illustration 100

1. Install Tooling (A) and a suitable lifting device to flywheel housing (2).

2. Remove bolts (1) and bolts (3). Remove flywheel housing (2) from the dowels in the cylinder block. The weight of the flywheel housing is 32 kg (71 lb).

Installation Procedure (103-4701)

Table 31


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.



Illustration 102

NOTE: Prior to assembly, apply a small amount of Tooling (B) at the joint of the following components: the flywheel housing, the engine oil pan, and the cylinder block.

1. Install Tooling (A) and position the flywheel housing. Install bolt 1 through bolt 19. Use the following procedure in order to tighten the bolts:

a. In a numerical sequence, tighten bolts 1 through bolt 19 to a torque of 40 ± 7 N·m (30 ± 5 lb ft).

b. In a numerical sequence, again tighten bolts 1 through bolt 9 to a torque of 135 ± 15 N·m (100 ± 11 lb ft).

c. In a numerical sequence, again tighten bolts 10 through bolt 19 to a torque of 55 ± 7 N·m (40 ± 5 lb ft).


Illustration 103

2. Install bolts (1) that fasten the engine oil pan to flywheel housing (2).

End By:

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

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

Installation Procedure (116-0696, 116-4896)

Table 32


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.



Illustration 104

NOTE: Prior to assembly, apply a small amount of Tooling (B) at the joint of the following components: the flywheel housing, the engine oil pan, and the cylinder block.

1. Install Tooling (A) and position the flywheel housing on the engine. Install bolt 1 through bolt 24. Use the following procedure in order to tighten the bolts:

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

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


Illustration 105

2. Install bolts (1) that fasten the engine oil pan to flywheel housing (2).

End By:

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

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

Installation Procedure (9N-2184, 109-4311, 130-3788, 134-4133)

Table 33


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.



Illustration 104

NOTE: Prior to assembly, apply a small amount of Tooling (B) at the joint of the following components: the flywheel housing, the engine oil pan, and the cylinder block.

1. Install Tooling (A) and position the flywheel housing on the engine. Install bolt 1 through bolt 24. Use the following procedure in order to tighten the bolts:

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

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


Illustration 105

2. Install bolts (1) that fasten the engine oil pan to flywheel housing (2).

End By:

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

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

Installation Procedure (All other flywheel housings)

Table 34


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.



Illustration 108

NOTE: Prior to assembly, apply a small amount of Tooling (B) at the joint of the following components: the flywheel housing, the engine oil pan, and the cylinder block.

1. Install Tooling (A) and position the flywheel housing on the engine. Install bolt 1 through bolt 24. Use the following procedure in order to tighten the bolts:

a. In a numerical sequence, tighten bolts 1 through bolt 9 to a torque of 100 ± 20 N·m (75 ± 15 lb ft).

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

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

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


Illustration 109

2. Install bolts (1) that fasten the engine oil pan to flywheel housing (2).

End By:

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

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

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