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Home >> Lexus >> 2021 >> RC F Fuji Speedway Edition >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System - Service Information >> FUEL INJECTOR (for Direct Injection) >> Removal [09/2014 - ] >> Procedure

Removal [09/2014 - ]: Procedure

  1. REMOVE FUEL PUMP WITH SEAL SUB-ASSEMBLY 

    Refer to REMOVAL [09/2014 - ] 

  2. REMOVE NO. 2 ENGINE COVER SUB-ASSEMBLY LH 
    1. Remove the No. 2 engine cover sub-assembly LH.
      GTY517749Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. REMOVE NO. 4 FUEL PIPE SUB-ASSEMBLY 
    1. Using a 17 mm union nut wrench, loosen the 2 union nuts of the No. 4 fuel pipe sub-assembly.
      GTY496327Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a 17 mm Union Nut Wrench
    2. Remove the No. 4 fuel pipe sub-assembly from the fuel delivery pipe LH and fuel delivery pipe RH.
  4. REMOVE CASE SEPARATOR 

    Refer to PROCEDURE - Step 5

  5. REMOVE FUEL DELIVERY PIPE LH 
    1. Disconnect the 4 fuel injector assembly connectors.
      GTY517748Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 3 bolts, 2 nuts and fuel delivery pipe LH with the fuel injector assemblies.
      NOTE:
      • If fuel intrudes into the combustion chamber, there may be adverse effects to the engine main body.
      • Make sure not to touch or strike the tips of the fuel injector assemblies.
      • Pull and remove the fuel delivery pipe LH in a straight line without tilting it.
      GTY509456Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Nut
  6. REMOVE FUEL DELIVERY PIPE RH 
    1. Disconnect the 4 fuel injector assembly connectors.
      GTY517746Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 3 bolts, 2 nuts and fuel delivery pipe RH with the fuel injector assemblies.
      NOTE:
      • If fuel intrudes into the combustion chamber, there may be adverse effects to the engine main body.
      • Make sure not to touch or strike the tips of the fuel injector assemblies.
      • Pull and remove the fuel delivery pipe RH in a straight line without tilting it.
      GTY496532Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Nut
  7. REMOVE FUEL INJECTOR ASSEMBLY 
    1. Secure the fuel delivery pipe LH and fuel delivery pipe RH in a vise between aluminum plates and pull out the 8 fuel injector assemblies.
      NOTE:
      • Pull and remove each fuel injector assembly in a straight line to avoid damaging the seal surface of the fuel delivery pipe LH and fuel delivery pipe RH O-ring.
      • For reinstallation, attach a tag or label with the corresponding cylinder number to each fuel injector assembly.
      GTY508776Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the nozzle holder clamp from each fuel injector assembly.
    3. Using needle nose pliers, remove the No. 3 fuel injector back-up ring from each fuel injector assembly.
    4. Remove the O-ring and No. 1 fuel injector back-up ring from each fuel injector assembly.
    5. Remove the C-ring and injector vibration insulator from each fuel injector assembly.
  8. REMOVE FUEL INJECTOR SEAL 
    1. Using the tip of needle nose pliers, pinch and pull the fuel injector seal at several points to stretch it.
      GTY401222Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • Excessively pinching the fuel injector seal may damage the groove of the fuel injector assembly.
      • If a fuel injector assembly is dropped or the tip of a fuel injector assembly is struck, replace it with a new one.
    2. Remove the fuel injector seal from each fuel injector assembly.