C3.3 Industrial Engine Caterpillar

Removal Procedure

Start By:

1. Remove the exhaust pipe. Refer to the OEM information for the correct procedure in order to remove the exhaust pipe.

Show/hide table

Illustration 1	g01245554
Typical example

1. Loosen the four nuts (2) on the four studs that are mounted on the exhaust manifold (1). Loosen the four nuts (4) on the studs that are mounted on the exhaust elbow (3). By hand, remove the nuts (4) from the studs that are mounted on the exhaust elbow (3). Support the turbocharger (5). Separate the exhaust elbow (3) from the turbocharger (5). Remove the nuts (2) and pull the exhaust elbow (4) away from the exhaust manifold (1). Ensure that the joints between the exhaust manifold, the exhaust elbow and the turbocharger are not damaged.

Installation Procedure

Show/hide table

Illustration 2	g01245554
Typical example

1. Thoroughly clean the exhaust elbow (3). Check that the joints (6) are not damaged.

   Note: If a new exhaust elbow (3) is installed, new studs (4) must be installed on the flange that connects to the turbocharger. Tighten the studs (4) to a torque of 18 ± 4.5 N·m (13.28 ± 3.32 lb ft).

2. Place the joint (6) onto the studs (4) that are mounted on the exhaust elbow (3). Align the studs (4) to the bolt holes of the turbocharger (5) and insert the studs into the holes. Install the nuts (4). Tighten the nuts (4) finger tight.

3. Place the joint (6) onto the four studs (2) of the exhaust manifold (1). Align the holes of the exhaust elbow (3) with the exhaust manifold (1). Install the nuts (2) finger tight.

4. Tighten the nuts (4) to a torque of 5 ± 1 N·m (3.7 ± 0.7 lb ft).

5. Tighten the nuts (2) to a torque of 44 ± 11 N·m (32.5 ± 8.0 lb ft).

End By:

1. Install the exhaust pipe. Refer to the OEM information for the correct procedure in order to install the exhaust pipe.