C18 Generator Set Engines Caterpillar

Removal Procedure

Start By:

1. Remove the electronic unit injectors.

1. Drain the coolant from the cooling system into a suitable container for storage or for disposal. Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change" for the correct draining and filling procedures.
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   Illustration 1	g01260353

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   Illustration 2	g01260345

2. Install Tooling (A) in electronic unit injector sleeve (1).

3. Tighten the nut on Tooling (A) until the electronic unit injector sleeve is pulled free of the cylinder head.
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   Illustration 3	g01260357

4. Remove O-ring seals (2) and O-ring seal (3) from electronic unit injector sleeve (1).

Installation Procedure

1. Use Tooling (B) to clean the bore in the cylinder head for the electronic unit injector sleeve.
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   NOTICE
   Ensure that the electronic unit injector sleeve and the cylinder head bore are completely free of oil, dirt, and sealant debris.

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   Illustration 4	g01260364

2. Install new O-ring seals (2) and O-ring seal (3) on electronic unit injector sleeve (1).

   Note: Do not apply Tooling (E) to the cylinder head surfaces. Apply Tooling (E) on the electronic unit injector sleeve only.

3. Apply Tooling (E) to the contact surface of electronic unit injector sleeve (1) on the surface that is Marked "X".

4. Lubricate O-ring seals (2) with clean engine oil.
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   Illustration 5	g01260372

5. Install Tooling (C) into the threads of electronic unit injector sleeve (1).

6. Position Tooling (C) and the electronic unit injector sleeve in the cylinder head. Use care not to damage the O-ring seals on the electronic unit injector sleeve.

7. Use Tooling (D) and a hammer to install electronic unit injector sleeve (1) in the cylinder head.
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   NOTICE
   Ensure that the electronic unit injector sleeve is properly seated in the cylinder head. The Tooling will "RING" when the electronic unit injector sleeve is fully seated in the bore of the cylinder head.

8. Remove Tooling (D) and Tooling (C). Use a clean towel and remove excess Tooling (E).

9. Fill the cooling system with coolant. Refer to Operation and Maintenance, "Refill Capacities" for the cooling system capacity.

End By:

1. Install the electronic unit injectors.