C0.5, C0.7, C1.1/3011C, C1.5/3013C, C1.6 and C2.2/3024C/3024CT Industrial Engines and Engines for Caterpillar Built Machines Caterpillar

Assembly Procedure (C0.5, C0.7, C1.1/3011C and C1.6 engines)

Note: The assembly procedure is similar for the two cylinder, the three cylinder and the four cylinder engines. The illustration shows a three cylinder engine.

1. Lubricate the adjustment screw (1) with clean engine oil. Install the adjustment screw (1) and the nut (2) to the rocker arm (3). Repeat the process for the remaining rocker arms.
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   Illustration 1	g01124596
   Typical example

2. Lubricate the rocker shaft (4) with clean engine oil. Position the end of the rocker shaft into the bore in the base of the rocker shaft (8).

   For C0.5 engines, align the two recesses (not shown) in the rocker shaft with the holes in the base of the rocker shaft (8).

   For C0.7, C1.1/3011C and C1.6 engines, align the hole (10) in the rocker shaft with the hole (9) in the base of the rocker shaft (8).

3. Gradually insert the rocker shaft (4) into the base of the rocker shaft (8). Install the rocker arm (3).
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   Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

4. Continue to insert the rocker shaft (4) and install the following components to the rocker shaft:

   • Rocker arm (3)

   • Washer (9)

   • Spring (10)

   • Washer (9)

   • Rocker arm (3)

5. Repeat Steps 4 and 3 in order to install the remaining components.

6. For C0.7, C1.1/3011C and C1.6 engines, apply 4C-4032 Threadlock to the first two threads of the setscrew (7). Install the setscrew (7) in the hole (9) in the base of the rocker shaft. Tighten the setscrew.

   Note: Ensure that no 4C-4032 Threadlock is allowed to contaminate the oil gallery in the rocker shaft.

7. Install a new O-ring (5) to the threaded plug (6).

8. Install the threaded plug (6) to the base of the rocker shaft (9). Tighten the plug to a torque of 15 N·m (11 lb ft).

End By:

1. Install the rocker shaft and the pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Install".

Assembly Procedure (C1.5/3013C, C2.2/3024C and C2.2/3024CT engines)

Note: The assembly procedure is similar for the three cylinder and the four cylinder engines. The illustration shows a four cylinder engine.

1. Lubricate the adjustment screw (1) with clean engine oil. Install the adjustment screw (1) and the nut (2) to the rocker arm (3). Repeat the process for the remaining rocker arms.
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   Illustration 2	g01113618
   Typical example

2. Install a new O-ring (8) onto the rocker shaft (4). Lubricate the rocker shaft with clean engine oil.

3. Position the end of the rocker shaft (4) into the bore in the base of the rocker shaft (7). Align the recesses (5) on the rocker shaft with the holes (6) in the base of the rocker shaft (7).

4. Gradually insert the rocker shaft (4) into the base of the rocker shaft (7). Install the rocker arm (3).
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   Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

5. Continue to insert the rocker shaft (4) and install the following components to the rocker shaft:

   • Rocker arm (3)

   • Washer (9)

   • Spring (10)

   • Washer (9)

   • Rocker arm (3)

6. Repeat Steps 4 and 3 in order to install the remaining components.

7. Ensure that the rocker shaft (4) is fully engaged into the base of the rocker shaft (7). Check that the recesses (5) on the rocker shaft are aligned with the holes (6) in the base of the rocker shaft.

End By:

1. Install the rocker shaft and the pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Install".