EXHAUST FUEL ADDITION INJECTOR REMOVAL

PROCEDURE

1. DRAIN ENGINE COOLANT

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2. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY

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3. REMOVE NO. 1 FUEL PIPE

   
   

   1. 

      Remove the bolt, union bolt and gasket and disconnect the No. 1 fuel pipe from the cylinder head cover sub-assembly and exhaust fuel addition injector assembly.

   2. 

      Disconnect the No. 4 fuel pipe and remove the No. 1 fuel pipe Click here.

4. REMOVE VENTILATION PIPE SUB-ASSEMBLY

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5. DISCONNECT NO. 4 WATER BY-PASS HOSE

   
   

   1. 

      Slide the clamp and disconnect the No. 4 water bypass hose from the No. 1 injector holder.

6. DISCONNECT NO. 5 WATER BY-PASS HOSE

   
   

   1. Slide the clamp and disconnect the No. 5 water by-pass hose from the No. 1 injector holder.

7. REMOVE NO. 1 INJECTOR HOLDER

   
   

   1. 

      Remove the connector from the exhaust fuel addition injector assembly.

   2. 

      Remove the 3 nuts and No. 1 injector holder from the exhaust manifold.

8. REMOVE NO. 2 EXHAUST MANIFOLD HEAT INSULATOR

   
   

   1. 

      Remove the 3 nuts and No. 2 exhaust manifold heat insulator from the No. 1 injector holder.

   2. Remove the gasket.

9. REMOVE INJECTOR HOLDER

   
   

   1. 

      Remove the 2 bolts and injector holder from the No. 1 injector holder.

10. REMOVE NO. 2 NOZZLE HOLDER CLAMP

    
    

    1. 

       Using a T40 "TORX" socket wrench, remove the bolt and No. 2 nozzle holder clamp from the No. 1 injector holder.

11. REMOVE EXHAUST FUEL ADDITION INJECTOR ASSEMBLY

    
    

    1. 

       Remove the exhaust fuel addition injector assembly from the No. 1 injector holder.

    2. 

       Remove the gasket from the No. 1 injector holder.

    3. 

       Remove the E-ring from the exhaust fuel addition injector assembly.

    4. 

       Remove the No. 3 fuel injector back-up ring, O-ring, No. 2 fuel injector back-up ring and No. 1 fuel injector back-up ring from the exhaust fuel addition injector assembly.