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Disassembly [11/2021 - ]: Procedure

WARNING: This page is about a different car, the 2024 Lexus IS 500, 2023 Lexus IS 500, and 2022 Lexus IS 500. However, it is still accessible from the selected car via links, so may be relevant.
  1. REMOVE VALVE ADJUSTING SHIM 
    1. Remove the valve adjusting shims from the cylinder head.

      HINT: 

      Arrange the removed parts in such a way that they can be installed to their original locations.

      GTY518595Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. REMOVE INTAKE VALVE 
    1. Using SST, compress the inner compression spring and remove the valve spring retainer lock.
      GTY521404Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • SST: 09202-70020 
        1. 09202-00010
        2. 09202-01010
        3. 09202-01020
    2. Remove the valve spring retainer, inner compression spring and intake valve from the cylinder head.

      HINT: 

      Arrange the removed parts in such a way that they can be installed to their original locations.

  3. REMOVE EXHAUST VALVE 
    1. Using SST, compress the inner compression spring and remove the valve spring retainer lock.
      GTY509776Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • SST: 09202-70020 
        1. 09202-00010
        2. 09202-01010
        3. 09202-01020
    2. Remove the valve spring retainer, inner compression spring and exhaust valve from the cylinder head.

      HINT: 

      Arrange the removed parts in such a way that they can be installed to their original locations.

  4. REMOVE INTAKE VALVE STEM OIL SEAL 
    1. Using needle-nose pliers, remove the intake valve stem oil seal.
      GTY148926Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. REMOVE EXHAUST VALVE STEM OIL SEAL 
    1. Using needle-nose pliers, remove the exhaust valve stem oil seal.
      GTY148927Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. REMOVE VALVE SPRING SEAT 
    1. Using compressed air and a Magnet Hand, remove the valve spring seats from the cylinder head by blowing air onto them.
      GTY121597Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      Arrange the removed parts in such a way that they can be installed to their original locations.

  7. REMOVE NO. 1 STRAIGHT SCREW PLUG 
    1. Using a 10 mm hexagon socket wrench, remove the 6 No. 1 straight screw plugs and 6 screw plug gaskets.
      GTY518252Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a for Bank 1
      *b for Bank 2
      NOTE:

      If coolant leaks from a No. 1 straight screw plug or the No. 1 straight screw plug is corroded, replace it.

  8. REMOVE NO. 2 STRAIGHT SCREW PLUG 
    1. Using a 14 mm hexagon socket wrench, remove the 2 No. 2 straight screw plugs and 2 screw plug gaskets.
      GTY516216Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a for Bank 1
      *b for Bank 2
      NOTE:

      If coolant leaks from a No. 2 straight screw plug or the No. 2 straight screw plug is corroded, replace it.

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