C4.4 Industrial Engine Caterpillar

Removal Procedure

Start By:

1. Remove the turbocharger. Refer to Disassembly and Assembly, "Turbocharger - Remove".

Illustration 1	g01789922
Typical example

Illustration 2	g01789982
Tightening sequence for the exhaust manifold

1. Loosen bolts (4) in reverse numerical order. Refer to Illustration 2.

   Note: This will help prevent distortion of the exhaust manifold.

2. Remove bolts (4) from exhaust manifold (3).

   Note: Support the manifold as the bolts are removed.

3. Remove exhaust manifold (3).

4. Remove exhaust manifold gasket (1).

5. If necessary, remove studs (2) from exhaust manifold (3).

Installation Procedure (Side Mounted Exhaust Manifold)

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Illustration 3	g01790878
Tightening sequence for the exhaust manifold

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Illustration 4	g01789922
Typical example

1. Ensure that the exhaust manifold is clean and free from damage. If necessary, replace the exhaust manifold. Clean the face of the cylinder head.

2. If necessary, install studs (2) to exhaust manifold (3). Tighten the studs to a torque of 18 N·m (13 lb ft).

3. Install Tooling (A) to the cylinder head in Positions (X). Refer to Illustration 3.

4. Position a new exhaust manifold gasket (1) onto Tooling (A).

   Note: Ensure that the exhaust manifold gasket is correctly oriented.

5. Align exhaust manifold (3) with Tooling (A). Install the exhaust manifold to the cylinder head.

6. Install new bolts (4) finger tight.

7. Remove Tooling (A). Install remaining bolts (4) finger tight.

8. Tighten bolts (4) to a torque of 40 N·m (30 lb ft). Tighten the bolts in the sequence that is shown in Illustration 3.

End By:

1. Install the turbocharger. Refer to Disassembly and Assembly, "Turbocharger - Install".