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Home >> Lexus >> 2024 >> RX 350h Base >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical System - Service Information (1 Of 4) >> Cylinder Head Gasket >> Removal [08/2023 - ] >> Procedure

Removal [08/2023 - ]: Procedure

  1. INSTALL ENGINE ASSEMBLY TO ENGINE STAND 

    Refer to REMOVAL [10/2022 - 10/2024] , or refer to REMOVAL [10/2024 - ]

  2. REMOVE ENGINE HANGERS 
  3. REMOVE COMPRESSOR WITH MOTOR ASSEMBLY 
    Refer to PROCEDURE - Step 2
  4. REMOVE NO. 2 WATER BY-PASS PIPE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 3

  5. REMOVE FLOW SHUTTING VALVE (WATER BY-PASS HOSE ASSEMBLY) 

    Refer to PROCEDURE - Step 4

  6. REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR 
    Refer to PROCEDURE - Step 5
  7. REMOVE MANIFOLD STAY 
    Refer to PROCEDURE - Step 14
  8. REMOVE EXHAUST MANIFOLD 
    Refer to PROCEDURE - Step 15
  9. REMOVE EXHAUST MANIFOLD TO HEAD GASKET 

    Refer to PROCEDURE - Step 16

  10. DISCONNECT NO. 5 WATER BY-PASS HOSE 

    Refer to PROCEDURE - Step 7

  11. SEPARATE THROTTLE BODY WITH MOTOR ASSEMBLY 
    Refer to PROCEDURE - Step 8
  12. DISCONNECT NO. 6 WATER BY-PASS HOSE 
    Refer to PROCEDURE - Step 9
  13. REMOVE THROTTLE BODY GASKET 

    Refer to PROCEDURE - Step 10

  14. DISCONNECT NO. 3 WATER BY-PASS HOSE 

    Refer to PROCEDURE - Step 3

  15. DISCONNECT NO. 4 WATER BY-PASS HOSE 

    Refer to PROCEDURE - Step 4

  16. REMOVE EGR COOLER ASSEMBLY 

    Refer to PROCEDURE - Step 5

  17. REMOVE EGR VALVE GASKET 

    Refer to PROCEDURE - Step 6

  18. REMOVE NO. 1 EGR COOLER GASKET 

    Refer to PROCEDURE - Step 7

  19. REMOVE NO. 1 EGR PIPE SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 5
  20. REMOVE EGR VALVE ADAPTER GASKET 

    Refer to PROCEDURE - Step 6

  21. REMOVE EGR INLET GASKET 

    Refer to PROCEDURE - Step 7

  22. DISCONNECT NO. 4 WATER BY-PASS HOSE 

    Refer to PROCEDURE - Step 8

  23. DISCONNECT NO. 8 WATER BY-PASS HOSE 

    Refer to PROCEDURE - Step 9

  24. REMOVE EGR VALVE ASSEMBLY 
    Refer to PROCEDURE - Step 10
  25. REMOVE NO. 3 WATER BY-PASS PIPE 
    Refer to PROCEDURE - Step 24
  26. REMOVE NO. 2 WATER BY-PASS PIPE 
    Refer to PROCEDURE - Step 25
  27. REMOVE INTAKE MANIFOLD 
    Refer to PROCEDURE - Step 16
  28. REMOVE NO. 1 INTAKE MANIFOLD TO HEAD GASKET 

    Refer to PROCEDURE - Step 17

  29. REMOVE FUEL PIPE CLAMP 

    Refer to PROCEDURE - Step 7

  30. DISCONNECT FUEL TUBE SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 8
  31. REMOVE NO. 1 FUEL PIPE SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 30
  32. REMOVE FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY 
    Refer to PROCEDURE - Step 10
  33. REMOVE FUEL PUMP SPACER GASKET 

    Refer to PROCEDURE - Step 11

  34. REMOVE FUEL PUMP LIFTER ASSEMBLY 

    Refer to PROCEDURE - Step 12

  35. REMOVE NO. 7 WATER BY-PASS HOSE 

    Refer to PROCEDURE - Step 34

  36. REMOVE FUEL DELIVERY PIPE SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 14
  37. REMOVE NO. 1 DELIVERY PIPE SPACER 

    Refer to PROCEDURE - Step 15

  38. REMOVE INJECTOR VIBRATION INSULATOR 

    Refer to PROCEDURE - Step 16

  39. REMOVE NO. 5 ENGINE WIRE 

    Refer to PROCEDURE - Step 17

  40. REMOVE PORT FUEL INJECTOR ASSEMBLY 
    Refer to PROCEDURE - Step 18
  41. DISCONNECT WIRE HARNESS 

    Refer to PROCEDURE - Step 12

  42. REMOVE FUEL DELIVERY PIPE 
    Refer to PROCEDURE - Step 13
  43. REMOVE DIRECT FUEL INJECTOR ASSEMBLY 
    Refer to PROCEDURE - Step 14
  44. REMOVE NOZZLE HOLDER CLAMP 

    Refer to PROCEDURE - Step 15

  45. REMOVE NO. 3 FUEL INJECTOR BACK-UP RING 
    Refer to PROCEDURE - Step 16
  46. REMOVE NO. 1 FUEL INJECTOR BACK-UP RING 

    Refer to PROCEDURE - Step 17

  47. REMOVE C-RING 

    Refer to PROCEDURE - Step 18

  48. REMOVE INJECTOR VIBRATION INSULATOR 

    Refer to PROCEDURE - Step 19

  49. REMOVE FUEL INJECTOR SEAL 
    Refer to PROCEDURE - Step 20
  50. REMOVE IGNITION COIL ASSEMBLY 
    Refer to PROCEDURE - Step 2
  51. REMOVE ENGINE OIL LEVEL DIPSTICK GUIDE 
    Refer to PROCEDURE - Step 52
  52. REMOVE OIL PRESSURE CONTROL VALVE ASSEMBLY 
    Refer to PROCEDURE - Step 2
  53. REMOVE CAM TIMING OIL CONTROL SOLENOID ASSEMBLY 
    Refer to PROCEDURE - Step 5
  54. REMOVE CAM TIMING OIL CONTROL SOLENOID O-RING 
    Refer to PROCEDURE - Step 6
  55. REMOVE CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY 
    Refer to PROCEDURE - Step 8
  56. REMOVE CAM TIMING CONTROL MOTOR O-RING 

    Refer to PROCEDURE - Step 9

  57. DISCONNECT NO. 1 WATER BY-PASS HOSE 
    1. GTY996098Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  58. DISCONNECT NO. 2 WATER BY-PASS HOSE 
    1. GTY1001162Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  59. REMOVE CRANKSHAFT PULLEY ASSEMBLY 
    Refer to PROCEDURE - Step 23
  60. REMOVE WATER OUTLET 
    Refer to PROCEDURE - Step 24
  61. REMOVE WATER OUTLET GASKET 

    Refer to PROCEDURE - Step 25

  62. REMOVE WATER BY-PASS OUTLET 
    Refer to PROCEDURE - Step 26
  63. REMOVE WATER OUTLET PIPE GASKET 

    Refer to PROCEDURE - Step 27

  64. REMOVE CAMSHAFT POSITION SENSOR (for Intake Side) 
    Refer to PROCEDURE - Step 2
  65. REMOVE CAMSHAFT POSITION SENSOR (for Exhaust Side) 
    Refer to PROCEDURE - Step 3
  66. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 30
  67. REMOVE SPARK PLUG TUBE GASKET 
    Refer to PROCEDURE - Step 31
  68. REMOVE ENGINE MOUNTING BRACKET RH 
    Refer to PROCEDURE - Step 32
  69. REMOVE NO. 2 TIMING CHAIN COVER ASSEMBLY 
    Refer to PROCEDURE - Step 34
  70. REMOVE TIMING CHAIN COVER OIL SEAL 
    Refer to PROCEDURE - Step 35
  71. SET NO. 1 CYLINDER TO TDC (COMPRESSION) 
    Refer to PROCEDURE - Step 36
  72. REMOVE OIL PUMP DRIVE CHAIN SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 37
  73. REMOVE CAMSHAFT TIMING GEAR ASSEMBLY 
    Refer to PROCEDURE - Step 38
  74. REMOVE CHAIN SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 39

  75. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY 
    Refer to PROCEDURE - Step 40
  76. REMOVE CHAIN TENSIONER SLIPPER 

    Refer to PROCEDURE - Step 41

  77. REMOVE NO. 1 CHAIN VIBRATION DAMPER 

    Refer to PROCEDURE - Step 42

  78. REMOVE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY 
    Refer to PROCEDURE - Step 43
  79. REMOVE TIMING CHAIN COVER ASSEMBLY 
    Refer to PROCEDURE - Step 44
  80. REMOVE FUEL PUMP LIFTER GUIDE 
    Refer to PROCEDURE - Step 47
  81. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 48
  82. REMOVE CAMSHAFT BEARING CAP 
    Refer to PROCEDURE - Step 49
  83. REMOVE CAMSHAFT 

    Refer to PROCEDURE - Step 50

  84. REMOVE NO. 2 CAMSHAFT 

    Refer to PROCEDURE - Step 51

  85. REMOVE NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 53

  86. REMOVE VALVE LASH ADJUSTER ASSEMBLY 

    Refer to PROCEDURE - Step 54

  87. REMOVE VALVE STEM CAP 

    Refer to PROCEDURE - Step 55

  88. REMOVE CYLINDER HEAD SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 58
  89. REMOVE CYLINDER HEAD GASKET 
    1. GTY996095Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  90. INSPECT CYLINDER HEAD SET BOLT 

    Refer to PROCEDURE - Step 18

  91. INSPECT CYLINDER HEAD SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 1

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