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Home >> Lexus >> 2019 >> NX 300 Base, AWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - Service Information (1 Of 2) >> Cylinder Head Gasket >> Removal [10/2014 - ] >> Procedure

Removal [10/2014 - ]: Procedure

  1. REMOVE TIMING CHAIN COVER ASSEMBLY 

    Refer to REMOVAL [10/2014 - 09/2015] , or refer to REMOVAL [09/2015 - ]

  2. REMOVE NO. 2 WATER BY-PASS PIPE 

    Refer to PROCEDURE - Step 10 [10/2014 - 09/2015] , or refer to PROCEDURE - Step 11 [09/2015 - ]

  3. REMOVE PURGE VSV 

    Refer to PROCEDURE - Step 3 [10/2014 - ]

  4. REMOVE INTAKE MANIFOLD WITH INTERCOOLER ASSEMBLY AND THROTTLE WITH MOTOR BODY ASSEMBLY 

    Refer to PROCEDURE - Step 11 [10/2014 - ]

  5. REMOVE FUEL DELIVERY PIPE (for Port Injection) 

    Refer to PROCEDURE - Step 3 [10/2014 - 09/2015] , or refer to PROCEDURE - Step 3 [09/2015 - ]

  6. REMOVE FUEL INJECTOR ASSEMBLY (for Port Injection) 

    Refer to PROCEDURE - Step 4 [10/2014 - 09/2015] , or refer to PROCEDURE - Step 4 [09/2015 - ]

  7. REMOVE FUEL DELIVERY PIPE SUB-ASSEMBLY (for Direct Injection) 

    Refer to PROCEDURE - Step 3 [10/2014 - 09/2015] , or refer to PROCEDURE - Step 3 [09/2015 - ]

  8. REMOVE FUEL INJECTOR SET (for Direct Injection) 

    Refer to PROCEDURE - Step 4 [10/2014 - 09/2015] , or refer to PROCEDURE - Step 4 [09/2015 - ]

  9. REMOVE FUEL INJECTOR SEAL (for Direct Injection) 

    Refer to PROCEDURE - Step 5 [10/2014 - 09/2015] , or refer to PROCEDURE - Step 5 [09/2015 - ]

  10. REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR 

    Refer to PROCEDURE - Step 12 [10/2014 - ]

  11. REMOVE NO. 2 EXHAUST MANIFOLD HEAT INSULATOR 

    Refer to PROCEDURE - Step 13 [10/2014 - ]

  12. REMOVE EXHAUST MANIFOLD CONVERTER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 14 [10/2014 - ]

  13. DISCONNECT TURBO OIL INLET PIPE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 5 [10/2014 - ]

  14. REMOVE TURBOCHARGER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 6 [10/2014 - ]

  15. REMOVE VACUUM PUMP ASSEMBLY 

    Refer to PROCEDURE - Step 4 [10/2014 - ]

  16. REMOVE ENGINE OIL LEVEL DIPSTICK GUIDE 

    Refer to PROCEDURE - Step 6 [10/2014 - ]

  17. SET NO. 1 CYLINDER TO TDC/COMPRESSION 

    Refer to PROCEDURE - Step 33 [10/2014 - 09/2015] , or refer to PROCEDURE - Step 35 [09/2015 - ]

  18. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY 

    Refer to PROCEDURE - Step 34 [10/2014 - 09/2015] , or refer to PROCEDURE - Step 36 [09/2015 - ]

  19. REMOVE TIMING CHAIN GUIDE 

    Refer to PROCEDURE - Step 35 [10/2014 - 09/2015] , or refer to PROCEDURE - Step 37 [09/2015 - ]

  20. REMOVE CHAIN TENSIONER SLIPPER 

    Refer to PROCEDURE - Step 36 [10/2014 - 09/2015] , or refer to PROCEDURE - Step 38 [09/2015 - ]

  21. REMOVE CHAIN SUB-ASSEMBLY 
  22. REMOVE NO. 1 CHAIN VIBRATION DAMPER 

    Refer to PROCEDURE - Step 38 [10/2014 - 09/2015] , or refer to PROCEDURE - Step 40 [09/2015 - ]

  23. REMOVE CAMSHAFT TIMING GEAR ASSEMBLY 

    Refer to PROCEDURE - Step 40 [10/2014 - 09/2015] , or refer to PROCEDURE - Step 42 [09/2015 - ]

  24. REMOVE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY 

    Refer to PROCEDURE - Step 41 [10/2014 - 09/2015] , or refer to PROCEDURE - Step 43 [09/2015 - ]

  25. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 43 [10/2014 - 09/2015] , or refer to PROCEDURE - Step 45 [09/2015 - ]

  26. REMOVE NO. 3 WATER BY-PASS PIPE 

    Refer to PROCEDURE - Step 44 [10/2014 - 09/2015] , or refer to PROCEDURE - Step 46 [09/2015 - ]

  27. DISCONNECT NO. 7 WATER BY-PASS HOSE 
    1. Slide the clamp and disconnect the No. 7 water by-pass hose from the cylinder head sub-assembly.
      GTY495694Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  28. REMOVE NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 51 [10/2014 - 09/2015] , or refer to PROCEDURE - Step 53 [09/2015 - ]

  29. REMOVE VALVE LASH ADJUSTER ASSEMBLY 

    Refer to PROCEDURE - Step 52 [10/2014 - 09/2015] , or refer to PROCEDURE - Step 54 [09/2015 - ]

  30. REMOVE VALVE STEM CAP 

    Refer to PROCEDURE - Step 53 [10/2014 - 09/2015] , or refer to PROCEDURE - Step 55 [09/2015 - ]

  31. REMOVE CYLINDER HEAD SUB-ASSEMBLY 
    1. Using a 10 mm bi-hexagon wrench, uniformly loosen the 10 cylinder head set bolts in the sequence shown in the illustration. Remove the 10 cylinder head set bolts and cylinder head set plate washers.
      Fig 1: Cylinder Head Sub-Assembly Loosening Sequence
      GTY497582Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • Be careful not to drop cylinder head set plate washers into the cylinder head sub-assembly.
      • Head warpage or cracking could result from removing cylinder head set bolts in an incorrect order.

      HINT: 

      Be sure to keep the removed parts separate for each installation position.

    2. Remove the cylinder head sub-assembly.
  32. REMOVE CYLINDER HEAD GASKET 
    1. Remove the cylinder head gasket from the cylinder block sub-assembly.
  33. INSPECT CYLINDER HEAD SET BOLT 

    Refer to PROCEDURE - Step 15 [10/2014 - ]

  34. INSPECT CYLINDER HEAD SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 1 [10/2014 - 09/2017] , or refer to PROCEDURE - Step 1 [09/2017 - ]

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