LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2019 >> ES 350 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 272 (Engine Mechanical System (A25A-FKS) - Service Information (3 Of 3)) >> Cylinder Head >> Disassembly [08/2021 - 09/2022] >> Procedure

Disassembly [08/2021 - 09/2022]: Procedure

WARNING: This page is about a different car, the 2024 Lexus ES 250, 2023 Lexus ES 250, 2022 Lexus ES 250, and 2021 Lexus ES 250. However, it is still accessible from the selected car via links, so may be relevant.
  1. REMOVE INTAKE VALVE 
    1. Using SST, compress each compression spring and remove the 8 valve spring retainer locks.
      GTY758757Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • SST: 09202-70020 
        1. 09202-01010
        2. 09202-01020
      • SST: 09202-00021 

      HINT: 

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

    2. Remove the 8 valve spring retainers, 8 compression springs and 8 intake valves from the cylinder head sub-assembly.

      HINT: 

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

  2. REMOVE EXHAUST VALVE 
    1. Using SST, compress each compression spring and remove the 8 valve spring retainer locks.
      GTY743452Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • SST: 09202-70020 
        1. 09202-01010
        2. 09202-01020
      • SST: 09202-00021 

      HINT: 

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

    2. Remove the 8 valve spring retainers, 8 compression springs and 8 exhaust valves from the cylinder head sub-assembly.

      HINT: 

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

  3. REMOVE VALVE STEM OIL SEAL 
    1. Using needle-nose pliers, remove the 16 valve stem oil seals.
      GTY772134Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. REMOVE VALVE SPRING SEAT 
    1. Using compressed air and a Magnet Hand, remove the 16 valve spring seats from the cylinder head sub-assembly by blowing air onto them.
      GTY756888Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. REMOVE NO. 1 STRAIGHT SCREW PLUG 
    NOTE:

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

    GTY756889Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Using a 6 mm hexagon socket wrench, remove the 4 No. 1 straight screw plugs from the cylinder head sub-assembly.
  6. REMOVE STUD BOLT 
    NOTE:

    If a stud bolt is deformed or its threads are damaged, replace it.

    1. Using an E8 "TORX" socket wrench, remove the 7 stud bolts.
      GTY756885Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
scientia non olet · About LEMON Manuals