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Removal [03/2019 - 09/2022]: Procedure

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  1. REMOVE CHAIN SUB-ASSEMBLY 

    Refer to REMOVAL [03/2019 - 09/2022]

  2. INSPECT CAMSHAFT TIMING GEAR ASSEMBLY 

    Refer to PROCEDURE - Step 32

  3. INSPECT CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY 

    Refer to PROCEDURE - Step 33

  4. REMOVE CAMSHAFT TIMING GEAR ASSEMBLY 

    Refer to PROCEDURE - Step 34

  5. REMOVE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY 

    Refer to PROCEDURE - Step 35

  6. REMOVE VALVE ROCKER ARM LOST MOTION DAMPER SUB-ASSEMBLY 
    1. Remove the 8 bolts and 4 valve rocker arm lost motion damper sub-assemblies.
      GTY864607Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Shim
      NOTE:
      • Make sure the camshaft housing sub-assembly is installed to the cylinder head sub-assembly when removing or installing a valve rocker arm lost motion damper sub-assembly.
      • If a valve rocker arm lost motion damper sub-assembly is removed, do not remove the camshaft housing sub-assembly.
      • Do not remove the shims. If a shim is removed, replace the camshaft housing sub-assembly as engine malfunctions may result from irregular valve timing.
  7. INSTALL VALVE ROCKER ARM LOST MOTION DAMPER SUB-ASSEMBLY 
    1. Install the 4 valve rocker arm lost motion damper sub-assemblies with the 8 bolts. Uniformly tighten the bolts.
      GTY934588Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Hole for Engine Oil

      Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

    2. Add engine oil into the hole for engine oil.
  8. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY 
    NOTE:
    • The camshaft housing sub-assembly is replaced with an assembled unit that includes the camshaft housing, camshafts, camshaft bearing caps, valve rocker shaft, continuously variable valve lift controller assembly and valve rocker arm lost motion damper sub-assembly. If disassembled, replace the camshaft housing sub-assembly.
    • The camshafts cannot be replaced by themselves.
      GTY769895Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Camshaft Housing Sub-assembly *2 Continuously Variable Valve Lift Controller Assembly
      *a Set of parts that are replaced together - -
    1. Uniformly loosen and remove the 17 bearing cap bolts in the order shown in the illustration.
      GTY454485Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Uniformly loosen the bearing cap bolts while keeping the camshaft housing level.

    2. Using a screwdriver, remove the camshaft housing sub-assembly by prying between the cylinder head sub-assembly and camshaft housing sub-assembly.
      GTY768715Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Protective Tape
      NOTE:

      Be careful not to damage the contact surfaces of the cylinder head sub-assembly and camshaft housing sub-assembly.

      HINT: 

      Tape the screwdriver tip before use.

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

    Refer to PROCEDURE - Step 40

  10. REMOVE VALVE LASH ADJUSTER ASSEMBLY 

    Refer to PROCEDURE - Step 41

  11. INSPECT NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 1

  12. INSPECT VALVE LASH ADJUSTER ASSEMBLY 

    Refer to PROCEDURE - Step 2

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