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Home >> Lexus >> 2024 >> LX 600 Base >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical System - Service Information (2 Of 3) >> Engine Unit >> Disassembly [12/2021 - 10/2023] >> Procedure

Disassembly [12/2021 - 10/2023]: Procedure

  1. REMOVE NO. 1 TURBOCHARGER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 11

  2. REMOVE NO. 5 ENGINE COVER 

    Refer to PROCEDURE - Step 16

  3. REMOVE NO. 2 TURBOCHARGER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 23

  4. REMOVE NO. 4 ENGINE COVER 

    Refer to PROCEDURE - Step 28

  5. REMOVE NO. 1 TURBO INSULATOR STAY 

    Refer to PROCEDURE - Step 29

  6. REMOVE NO. 1 WATER BY-PASS PIPE 
    1. GTY1041996Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE NO. 1 FUEL DELIVERY PIPE SUB-ASSEMBLY RH 
    Refer to PROCEDURE - Step 11
  8. REMOVE NO. 1 FUEL DELIVERY PIPE SUB-ASSEMBLY LH 
    Refer to PROCEDURE - Step 15
  9. REMOVE FUEL DELIVERY SPACER 

    Refer to PROCEDURE - Step 16

  10. REMOVE INJECTOR VIBRATION INSULATOR 

    Refer to PROCEDURE - Step 17

  11. REMOVE INTAKE MANIFOLD 

    Refer to PROCEDURE - Step 16

  12. REMOVE NO. 3 FUEL PIPE SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 6
  13. REMOVE NO. 2 FUEL DELIVERY PIPE SUB-ASSEMBLY RH 
    Refer to PROCEDURE - Step 7
  14. REMOVE DIRECT FUEL INJECTOR ASSEMBLY 
    Refer to PROCEDURE - Step 9
  15. REMOVE NO. 5 ENGINE WIRE 

    Refer to PROCEDURE - Step 10

  16. REMOVE NOZZLE HOLDER CLAMP 

    Refer to PROCEDURE - Step 12

  17. REMOVE NO. 3 FUEL INJECTOR BACK-UP RING 
    Refer to PROCEDURE - Step 13
  18. REMOVE NO. 2 FUEL INJECTOR BACK-UP RING 
    Refer to PROCEDURE - Step 14
  19. REMOVE FUEL INJECTOR O-RING 

    Refer to PROCEDURE - Step 15

  20. REMOVE NO. 1 FUEL INJECTOR BACK-UP RING 

    Refer to PROCEDURE - Step 16

  21. REMOVE C-RING 

    Refer to PROCEDURE - Step 17

  22. REMOVE INJECTOR VIBRATION INSULATOR 

    Refer to PROCEDURE - Step 18

  23. REMOVE FUEL INJECTOR SEAL 
    Refer to PROCEDURE - Step 19
  24. REMOVE NO. 2 FUEL DELIVERY PIPE SUB-ASSEMBLY LH 
    Refer to PROCEDURE - Step 8
  25. REMOVE DIRECT FUEL INJECTOR ASSEMBLY 
    Refer to PROCEDURE - Step 9
  26. REMOVE NO. 6 ENGINE WIRE 

    Refer to PROCEDURE - Step 9

  27. REMOVE NOZZLE HOLDER CLAMP 

    Refer to PROCEDURE - Step 12

  28. REMOVE NO. 3 FUEL INJECTOR BACK-UP RING 
    Refer to PROCEDURE - Step 13
  29. REMOVE NO. 2 FUEL INJECTOR BACK-UP RING 
    Refer to PROCEDURE - Step 14
  30. REMOVE FUEL INJECTOR O-RING 

    Refer to PROCEDURE - Step 15

  31. REMOVE NO. 1 FUEL INJECTOR BACK-UP RING 

    Refer to PROCEDURE - Step 16

  32. REMOVE C-RING 

    Refer to PROCEDURE - Step 17

  33. REMOVE INJECTOR VIBRATION INSULATOR 

    Refer to PROCEDURE - Step 18

  34. REMOVE FUEL INJECTOR SEAL 
    Refer to PROCEDURE - Step 19
  35. REMOVE SPARK PLUG 
    Refer to PROCEDURE - Step 8
  36. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY RH 
    Refer to PROCEDURE - Step 40
  37. REMOVE SPARK PLUG TUBE GASKET RH 
    1. GTY1075386Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the 3 spark plug tube gaskets.

        HINT: 

        Be careful not to damage the spark plug tube gaskets when removing it as the removed spark plug tube gaskets need to be used when installing a new one.

  38. REMOVE SPARK PLUG 
    Refer to PROCEDURE - Step 8
  39. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY LH 
    Refer to PROCEDURE - Step 42
  40. REMOVE SPARK PLUG TUBE GASKET LH 
    1. GTY1075793Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the 3 spark plug tube gaskets.

        HINT: 

        Be careful not to damage the spark plug tube gaskets when removing it as the removed spark plug tube gaskets need to be used when installing a new one.

  41. REMOVE WATER INLET SUB-ASSEMBLY WITH THERMOSTAT 

    Refer to PROCEDURE - Step 11

  42. REMOVE CRANKSHAFT POSITION SENSOR 
    Refer to PROCEDURE - Step 3
  43. REMOVE OIL PRESSURE SENDER GAUGE ASSEMBLY 
    Refer to PROCEDURE - Step 2
  44. REMOVE TEMPERATURE SENSOR 
    Refer to PROCEDURE - Step 2
  45. REMOVE OIL FILTER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 5

  46. REMOVE OIL COOLER ASSEMBLY 

    Refer to PROCEDURE - Step 9

  47. REMOVE OIL COOLER GASKET 

    Refer to PROCEDURE - Step 10

  48. REMOVE OIL COOLER O-RING 

    Refer to PROCEDURE - Step 11

  49. REMOVE CAM TIMING OIL CONTROL SOLENOID ASSEMBLY RH (for Intake Side of Bank 1) 
    Refer to PROCEDURE - Step 7
  50. REMOVE CAM TIMING OIL CONTROL SOLENOID O-RING RH (for Intake Side of Bank 1) 
    Refer to PROCEDURE - Step 8
  51. REMOVE CAM TIMING OIL CONTROL SOLENOID ASSEMBLY RH (for Exhaust Side of Bank 1) 
    Refer to PROCEDURE - Step 9
  52. REMOVE CAM TIMING OIL CONTROL SOLENOID O-RING RH (for Exhaust Side of Bank 1) 
    Refer to PROCEDURE - Step 10
  53. REMOVE CAM TIMING OIL CONTROL SOLENOID ASSEMBLY LH (for Intake Side of Bank 2) 
    Refer to PROCEDURE - Step 5
  54. REMOVE CAM TIMING OIL CONTROL SOLENOID O-RING LH (for Intake Side of Bank 2) 
    Refer to PROCEDURE - Step 6
  55. REMOVE CAM TIMING OIL CONTROL SOLENOID ASSEMBLY LH (for Exhaust Side of Bank 2) 
    Refer to PROCEDURE - Step 7
  56. REMOVE CAM TIMING OIL CONTROL SOLENOID O-RING LH (for Exhaust Side of Bank 2) 
    Refer to PROCEDURE - Step 8
  57. REMOVE CRANKSHAFT PULLEY 
    Refer to PROCEDURE - Step 3
  58. SET NO. 1 CYLINDER TO TDC/COMPRESSION 
    1. GTY1075413Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Crankshaft Pulley Set Key - -
      *a Block Bore Center Mark RH *b 30°
      1. Temporarily install the crankshaft pulley set bolt.
      2. Set the crankshaft pulley set key to the block bore center mark RH (TDC/compression).
    2. GTY1075148Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Timing Mark (Camshaft Timing Intake Gear Assembly Side) *b Timing Mark (Camshaft Timing Exhaust Gear Assembly Side)
      1. for Bank 1:

        Check that the timing marks of the camshaft timing gears are aligned with the timing marks of the bearing cap as shown in the illustration.

        If not, turn the crankshaft 1 revolution (360°) and align the timing marks as described above.

        NOTE:
        • Check each timing mark from a viewpoint directly inline with the center of the camshaft and the timing mark on each camshaft timing gear.
        • If the timing marks are checked from any other viewpoint, the valve timing may appear misaligned.
    3. GTY1075777Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Timing Mark (Camshaft Timing Intake Gear Assembly Side) *b Timing Mark (Camshaft Timing Exhaust Gear Assembly Side)
      1. for Bank 2:

        Check that the timing marks of the camshaft timing gears are aligned with the timing marks of the bearing cap as shown in the illustration.

        If not, turn the crankshaft 1 revolution (360°) and align the timing marks as described above.

        NOTE:
        • Check each timing mark from a viewpoint directly inline with the center of the camshaft and the timing mark on each camshaft timing gear.
        • If the timing marks are checked from any other viewpoint, the valve timing may appear misaligned.
  59. REMOVE TIMING CHAIN OR BELT COVER SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 24
  60. REMOVE TIMING CHAIN CASE OIL SEAL 
    Refer to PROCEDURE - Step 4
  61. REMOVE OIL PUMP DRIVE CHAIN SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 25
  62. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY 
    1. GTY1076102Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Plunger *b Stopper Plate
      *c Pin - -
      1. Move the stopper plate upward to release the lock, and push the plunger deep into the No. 1 chain tensioner assembly.
      2. Move the stopper plate downward to set the lock, and insert a pin of 1.27 mm (0.0500 in.) diameter into the stopper plate's hole.
      3. Remove the 2 bolts and No. 1 chain tensioner assembly.
  63. REMOVE CHAIN TENSIONER SLIPPER 
    1. GTY1041743Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  64. REMOVE NO. 1 CHAIN SUB-ASSEMBLY 
    1. GTY1075989Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A for Bank 1 - -
      *1 Crankshaft Pulley Set Key - -
      *a 10° *b Timing Mark
      1. Turn the crankshaft counterclockwise 10° to loosen the chain sub-assembly of the crankshaft timing sprocket.
      2. Remove the crankshaft pulley set bolt.
      3. Remove the chain sub-assembly from the crankshaft timing sprocket and place it on the crankshaft.
      4. Turn the camshaft timing gear assembly on bank 1 clockwise (approximately 70°) and set it as shown in the illustration. Be sure to loosen the chain between the banks.
      5. Remove the No. 1 chain sub-assembly.
  65. REMOVE IDLE SPROCKET ASSEMBLY 
    1. GTY1076052Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using a 10 mm hexagon wrench, remove the No. 2 idle gear shaft, idle sprocket assembly and No. 1 idle gear shaft.
  66. REMOVE NO. 1 CHAIN VIBRATION DAMPER 
    1. GTY1042054Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  67. REMOVE NO. 2 CHAIN VIBRATION DAMPER 
    1. GTY1042059Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  68. REMOVE CRANKSHAFT TIMING GEAR OR SPROCKET 
    1. GTY1042062Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  69. REMOVE TIMING CHAIN COVER ASSEMBLY 
    1. GTY1041360Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the 27 bolts shown in the illustration.
      2. Timing Chain Cover Assembly Side:

        Remove the 2 oil pump gaskets and 2 water pump gaskets from the timing chain cover assembly.

      3. Cylinder Block Sub-assembly Side:

        Remove the 3 oil pump gaskets from the cylinder block sub-assembly.

  70. REMOVE NO. 6 ENGINE COVER 
    1. GTY1042083Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  71. REMOVE OIL PAN COVER SILENCER 
    1. GTY1041993Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  72. REMOVE OIL PAN DRAIN PLUG 
    1. GTY1041319Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  73. REMOVE NO. 2 OIL PAN SUB-ASSEMBLY 
    1. GTY1132123Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A Type A *B Type B
      *a Oil Pan Seal Cutter - -
      Bolt Nut
      1. Remove the 9 bolts and 2 nuts.
      2. Insert the blade of an oil pan seal cutter between the oil pans. Cut through the applied sealer and remove the No. 2 oil pan sub-assembly.
        NOTE:

        Be careful not to damage the contact surfaces of the oil pans.

  74. REMOVE ENGINE OIL LEVEL SENSOR 
    Refer to PROCEDURE - Step 5
  75. REMOVE NO. 1 OIL PAN SUB-ASSEMBLY 
    1. GTY1075377Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the 12 bolts.

        HINT: 

        Be sure to clean the bolts and stud bolts and check the threads for cracks or other damage.

      2. Remove the No. 1 oil pan sub-assembly by prying between the No. 1 oil pan sub-assembly and cylinder block sub-assembly with a screwdriver.
        NOTE:

        Be careful not to damage the contact surfaces of the cylinder block sub-assembly and No. 1 oil pan sub-assembly.

        HINT: 

        Tape the screwdriver tip before use.

  76. REMOVE OIL STRAINER SUB-ASSEMBLY 
    1. GTY1075465Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  77. REMOVE NO. 1 OIL PAN BAFFLE PLATE 
    1. GTY1075466Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  78. REMOVE REAR ENGINE OIL SEAL RETAINER 
    1. GTY1075860Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the small head 6 bolts and 4 bolts.
      2. Using a screwdriver, pry out the rear engine oil seal retainer.
        NOTE:

        Be careful not to damage the rear engine oil seal retainer.

        HINT: 

        Tape the screwdriver tip before use.

      3. Remove the gasket from the rear engine oil seal retainer.
  79. REMOVE REAR ENGINE OIL SEAL 
    1. GTY1076059Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Wooden Block *b Protective Tape
      1. Place the rear engine oil seal retainer on wooden blocks.
        NOTE:

        Be careful not to damage the rear engine oil seal retainer.

      2. Using a screwdriver and a hammer, tap out the rear engine oil seal.

        HINT: 

        Tape the screwdriver tip before use.

  80. REMOVE CAMSHAFT BEARING CAP (for Bank 1) 
    Refer to PROCEDURE - Step 6
  81. REMOVE NO. 2 CHAIN TENSIONER ASSEMBLY 
    1. GTY1041683Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  82. REMOVE INTAKE CAMSHAFT SUB-ASSEMBLY RH 

    Refer to PROCEDURE - Step 7

  83. REMOVE CAMSHAFT TIMING INTAKE GEAR ASSEMBLY RH (for Intake Side of Bank 1) 
    Refer to PROCEDURE - Step 62
  84. REMOVE EXHAUST CAMSHAFT SUB-ASSEMBLY RH 

    Refer to PROCEDURE - Step 8

  85. REMOVE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY RH (for Exhaust Side of Bank 1) 
    Refer to PROCEDURE - Step 60
  86. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY RH 
    Refer to PROCEDURE - Step 9
  87. REMOVE VALVE ROCKER ARM SUB-ASSEMBLY RH 

    Refer to PROCEDURE - Step 10

  88. REMOVE VALVE LASH ADJUSTER ASSEMBLY (for Bank 1) 

    Refer to PROCEDURE - Step 11

  89. REMOVE VALVE STEM CAP (for Bank 1) 

    Refer to PROCEDURE - Step 12

  90. REMOVE CAMSHAFT BEARING CAP (for Bank 2) 
    Refer to PROCEDURE - Step 13
  91. REMOVE NO. 3 CHAIN TENSIONER ASSEMBLY 
    1. GTY1041684Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  92. REMOVE EXHAUST CAMSHAFT SUB-ASSEMBLY LH 

    Refer to PROCEDURE - Step 15

  93. REMOVE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY LH (for Exhaust Side of Bank 2) 
    Refer to PROCEDURE - Step 69
  94. REMOVE INTAKE CAMSHAFT SUB-ASSEMBLY LH 

    Refer to PROCEDURE - Step 14

  95. REMOVE CAMSHAFT TIMING INTAKE GEAR ASSEMBLY LH (for Intake Side of Bank 2) 
    Refer to PROCEDURE - Step 71
  96. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY LH 
    Refer to PROCEDURE - Step 16
  97. REMOVE VALVE ROCKER ARM SUB-ASSEMBLY LH 

    Refer to PROCEDURE - Step 17

  98. REMOVE VALVE LASH ADJUSTER ASSEMBLY (for Bank 2) 

    Refer to PROCEDURE - Step 18

  99. REMOVE VALVE STEM CAP (for Bank 2) 

    Refer to PROCEDURE - Step 19

  100. REMOVE CYLINDER HEAD SUB-ASSEMBLY RH 
    Refer to PROCEDURE - Step 20
  101. REMOVE CYLINDER HEAD GASKET RH 

    Refer to PROCEDURE - Step 21

  102. REMOVE CYLINDER HEAD SUB-ASSEMBLY LH 
    Refer to PROCEDURE - Step 22
  103. REMOVE CYLINDER HEAD GASKET LH 

    Refer to PROCEDURE - Step 23

  104. REMOVE SENSOR WIRE 
    1. GTY1042374Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  105. REMOVE KNOCK CONTROL SENSOR 
    Refer to PROCEDURE - Step 3
  106. REMOVE PCV VALVE SUB-ASSEMBLY (VENTILATION VALVE SUB-ASSEMBLY) 
    Refer to PROCEDURE - Step 3
  107. REMOVE NO. 1 PCV CASE (NO. 1 VENTILATION CASE) 
    1. GTY1042376Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  108. REMOVE RING PIN 
    NOTE:

    It is not necessary to remove the ring pins unless they are being replaced.
    1. GTY1042525Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A for Bank 1 *B for Bank 2
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