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Home >> Toyota >> 2025 >> Supra Premium, Standard Trans >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Engine Intake / Exhaust System (B58) - Service Information >> Turbocharger >> Installation [03/2020 - ] >> Procedure

Installation [03/2020 - ]: Procedure

  1. INSTALL NO. 1 TURBO WATER PIPE SUB-ASSEMBLY 

    HINT: 

    Perform this procedure only when replacement of the turbocharger sub-assembly is necessary.

    See step  1

  2. INSTALL INLET TURBO OIL PIPE SUB-ASSEMBLY 

    HINT: 

    Perform this procedure only when replacement of the turbocharger sub-assembly is necessary.

    See step  1

  3. INSTALL NO. 2 TURBO WATER PIPE SUB-ASSEMBLY 

    HINT: 

    Perform this procedure only when replacement of the turbocharger sub-assembly is necessary.

    See step  1

  4. INSTALL NO. 2 HEAT INSULATOR 

    HINT: 

    Perform this procedure only when replacement of the turbocharger sub-assembly is necessary.

    1. Install the No. 2 heat insulator.
    2. Tighten the screws.

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

  5. INSPECT THE COMPONENTS PRIOR TO INSTALLATION OF THE TURBOCHARGER SUB-ASSEMBLY 
    1. Check the outlet turbo oil pipe and inlet turbo oil pipe sub-assembly for contamination, obstruction and damage: clean or replace if necessary.

      HINT: 

      If the outlet turbo oil pipe and/or inlet turbo oil pipe sub-assembly are heavily contaminated, we recommend changing the engine oil and the oil filter.

    2. Check the No. 1 turbo water pipe sub-assembly and No. 2 turbo water pipe sub-assembly for the turbocharger sub-assembly for contamination, obstruction and damage: clean or replace if necessary.
    3. Check all bolt connections and cable connections for correct fit.
    4. Check air cleaner for contamination and clean or replace as needed.
    5. Check correct functioning of ventilation hose.
  6. INSTALL TURBOCHARGER SUB-ASSEMBLY 
    1. Check screw-in depth (A) of the upper stud bolt (1).
      GTY977201Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard

      Dimension (A) = 30 mm (1.18 in.)

    2. Clean sealing surfaces (1) on the cylinder head sub-assembly.
      GTY977203Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • Damage to the surface.
      • The use of metal-cutting tools (e.g. emery cloth) to clean the surfaces can damage them and lead to leaks or engine damage.
        • Do not use any metal-cutting tools.
    3. Replace exhaust manifold to head gaskets (1).
      GTY976818Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Install the exhaust manifold to head gaskets (1) into the marked area.
    5. Clean sealing surfaces (1) on the turbocharger sub-assembly.
      GTY976839Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • Damage to the surface.
      • The use of metal-cutting tools (e.g. emery cloth) to clean the surfaces can damage them and lead to leaks or engine damage.
        • Do not use any metal-cutting tools.
    6. Install the turbocharger sub-assembly (1).
      GTY976822Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WARNING:
      • Heavy component.
      • Heavy components can lead to injury or damage.
        • Remove and install heavy components with the aid of another person/other persons.
    7. Thermal compensating elements of the turbocharger sub-assembly (1) or exhaust manifold should not be bent or deformed.
    8. Install the slide rail (1).

      HINT: 

      Install slide rail (1) so that the part number is seen.

      GTY977205Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    9. Replace the nuts.
      Fig 1: Turbocharger Sub-Assembly Nuts Tightening Sequence
      GTY977207Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    10. Tighten nuts in sequence (1) to (7).

      Torque

      1st 10Nm
      2nd 10Nm
      3rd 16Nm
      4th 16Nm
      5th 16Nm
    11. Make sure the thermal compensating elements (A) have not been damaged.
    12. Loosen nuts (1) and (2).
    13. Remove special tool 2 466 467 at the exhaust turbocharger (3).
      GTY976843Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • SST: 09290-WA020 
    14. Loosen nuts (1) and (2).
      GTY976840Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    15. Remove special tool 2 466 467 at the exhaust turbocharger (3).
      • SST: 09290-WA020 
    16. Loosen screw (2).
      GTY976851Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    17. Remove the bracket (1) of the special tool 2 446 919 and set it aside.
      • SST: 09290-WA010 
    18. Release clamping lever (1) of the special tool 2 446 919 in the direction of arrow.
      GTY976835Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • SST: 09290-WA010 
    19. Loosen screw (1).
      GTY976635Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    20. Remove special tool 2 446 919 at the turbocharger sub-assembly.
      • SST: 09290-WA010 
    21. Renew O-ring on the No. 1 turbo water pipe sub-assembly of the turbocharger sub-assembly.
    22. Feed in and install No. 1 turbo water pipe sub-assembly for the turbocharger sub-assembly (3).
    23. Tighten down screws.

      Torque: 8.0 N.m (82 kgf/cm, 71 in.lbf) 

    24. Renew screws.
    25. Install turbocharger stay.
    26. Tighten down screws.

      Torque: 19 N.m (194 kgf/cm, 14 ft.lbf) 

  7. CONNECT INLET TURBO OIL PIPE SUB-ASSEMBLY 
    1. Renew O-ring on the inlet turbo oil pipe sub-assembly of the turbocharger sub-assembly.
    2. Position inlet turbo oil pipe sub-assembly.
    3. Tighten down the screw.

      Torque: 8.0 N.m (82 kgf/cm, 71 in.lbf) 

  8. CONNECT NO. 2 TURBO WATER PIPE SUB-ASSEMBLY 
    1. Tighten the screw on the holder of the No. 2 turbo water pipe sub-assembly.

      Torque: 8.0 N.m (82 kgf/cm, 71 in.lbf) 

    2. Connect the coolant hose.

      HINT: 

      The coolant return line must engage audibly.

  9. INSTALL NO. 1 EXHAUST MANIFOLD HEAT INSULATOR 

    See step  1

  10. INSTALL OUTLET TURBO OIL PIPE 

    See step  1

  11. INSTALL EXHAUST MANIFOLD CONVERTER SUB-ASSEMBLY 

    Refer to INSTALLATION [03/2019 - ]

  12. INSTALL INLET COMPRESSOR ELBOW 

    See step  1

  13. INSTALL VENTILATION HOSE 

    See step  2

  14. INSTALL NO. 2 AIR CLEANER HOSE 

    Refer to INSTALLATION [03/2019 - ] 

  15. INSTALL EXHAUST PIPE ASSEMBLY 

    Refer to INSTALLATION [03/2019 - ] 

  16. INSTALL STEERING LINK ASSEMBLY 

    Refer to INSTALLATION [07/2020 - ]

  17. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL 

    Refer to INSTALLATION [03/2019 - ]

  18. ADD ENGINE COOLANT (for High Temperature) 

    Refer to REPLACEMENT [03/2019 - ]

  19. INSPECT FOR COOLANT LEAK (for High Temperature) 

    Refer to PROCEDURE - Step 1

  20. INSPECT FOR EXHAUST GAS LEAK 

    See step  7

  21. CHECK ENGINE OIL LEVEL 

    Refer to PROCEDURE - Step 1

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