C15 and C18 On-Highway Engines Electronic Unit Injector Sleeve - Remove and Install Caterpillar


Electronic Unit Injector Sleeve - Remove and Install
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1.1. Removal Procedure
2.1. Installation Procedure

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
9U-6891  Injector Tool Group 
9U-6862  Tapered Brush 
9U-6863 Small Bore Brush 
9U-7244 End Brush 
9U-7237 Brush Extension 
4C-5552 Large Bore Brush 
C(1)  221-9778  Puller Stud 
D(1)  9U-7258  Driver Cap 
4C-9507  Retaining Compound 
(1) Part of the 9U-6891 Injector Tool Group

Start By:

  1. Remove the electronic unit injectors.


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


  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.


    Illustration 1g01260353


    Illustration 2g01260345

  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.


    Illustration 3g01260357

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

Installation Procedure


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


  1. Use Tooling (B) to clean the bore in the cylinder head for the electronic unit injector sleeve.


    NOTICE

    Ensure that the electronic unit injector sleeve and the cylinder head bore are completely free of oil, dirt, and sealant debris.




    Illustration 4g01260364

  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.


    Illustration 5g01260372

  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.


    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.

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