Turbocharger Installation

Engine. Lexus Is250, Is220D. Gse20 Ale20
2Ad-Fhv Intake. Lexus Is250, Is220D. Gse20 Ale20

  1. INSTALL STUD BOLT

  2. INSTALL TURBO OIL OUTLET PIPE

  3. INSTALL WATER PIPE

  4. INSTALL TURBOCHARGER SUB-ASSEMBLY

  5. INSTALL NO. 2 TURBO OIL PIPE

  6. INSTALL TURBO OIL OUTLET HOSE

  7. INSTALL NO. 3 WATER BY-PASS HOSE

  8. INSTALL NO. 1 TURBO INSULATOR

  9. INSTALL TURBOCHARGER STAY

  10. INSTALL EXHAUST MANIFOLD CONVERTER SUB-ASSEMBLY

  11. INSTALL FRONT EXHAUST PIPE ASSEMBLY

  12. INSTALL BATTERY TRAY

  13. INSTALL POWER STEERING ECU ASSEMBLY

  14. INSTALL AIR HOSE

  15. INSTALL NO. 2 AIR HOSE

  16. INSTALL NO. 1 AIR TUBE

  17. INSTALL AIR CLEANER CAP WITH AIR CLEANER HOSE

  18. CHECK FOR EXHAUST GAS LEAKS

  19. INSTALL ENGINE ROOM SIDE COVER RH

  20. INSTALL COOL AIR INTAKE DUCT SEAL

  21. INSTALL NO. 1 ENGINE COVER

Turbocharger -- Installation



1. INSTALL STUD BOLT


    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Intake.Intake Air Control System.Turbocharger  Installation
  1. Install the 2 stud bolts (turbo oil outlet pipe side).

    Torque:
    5.0 N*m{51 kgf*cm, 44 in.*lbf}


    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Intake.Intake Air Control System.Turbocharger  Installation
  1. Install the 3 stud bolts (exhaust manifold side).

    Torque:
    20 N*m{204 kgf*cm, 15 ft.*lbf}


    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Intake.Intake Air Control System.Turbocharger  Installation
  1. Install the 3 stud bolts (exhaust manifold convertor side).

    Torque:
    10 N*m{102 kgf*cm, 7 ft.*lbf}


2. INSTALL TURBO OIL OUTLET PIPE


    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Intake.Intake Air Control System.Turbocharger  Installation
  1. Install a new gasket and the turbo oil outlet pipe with the 2 nuts.

    Torque:
    11 N*m{112 kgf*cm, 8 ft.*lbf}


3. INSTALL WATER PIPE


    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Intake.Intake Air Control System.Turbocharger  Installation
  1. Temporarily install 2 new gaskets, No. 1 turbo water pipe sub-assembly and No. 2 turbo water pipe sub-assembly with the 2 union bolts and bolt.

  1. Tighten the 2 union bolts (*2).

    Torque:
    38 N*m{388 kgf*cm, 28 ft.*lbf}
  1. Tighten the bolt (*1).

    Torque:
    28 N*m{286 kgf*cm, 21 ft.*lbf}


4. INSTALL TURBOCHARGER SUB-ASSEMBLY


    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Intake.Intake Air Control System.Turbocharger  Installation
  1. Install the No. 1 turbo water hose to the turbocharger sub-assembly.

    HINT:
    Install the clip an line up the paint marks as shown in the illustration.
  1. Install the No. 1 turbo water hose to the No. 1 turbo water pipe.



    Lexus Is250, Is220D. Gse20 Ale20
  1. Install a new gasket and turbocharger sub-assembly with the 3 nuts.

    Torque:
    60 N*m{612 kgf*cm, 44 ft.*lbf}


5. INSTALL NO. 2 TURBO OIL PIPE


    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Intake.Intake Air Control System.Turbocharger  Installation
  1. Temporarily install 2 new gaskets and No. 2 turbo oil pipe with the 2 union bolts and bolt.

  1. Tighten the 2 union bolts (*1).

    Torque:
    35 N*m{357 kgf*cm, 26 ft.*lbf}
  1. Tighten the bolt (*2).

    Torque:
    18 N*m{184 kgf*cm, 13 ft.*lbf}


6. INSTALL TURBO OIL OUTLET HOSE


    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Intake.Intake Air Control System.Turbocharger  Installation
  1. Using pliers, slide the clip to install the turbo oil outlet hose.



7. INSTALL NO. 3 WATER BY-PASS HOSE


    Lexus Is250, Is220D. Gse20 Ale20
  1. Connect the No. 3 water by-pass hose.



8. INSTALL NO. 1 TURBO INSULATOR


    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Intake.Intake Air Control System.Turbocharger  Installation
  1. Install the insulator with the 2 bolts.

    Torque:
    25 N*m{255 kgf*cm, 18 ft.*lbf}


9. INSTALL TURBOCHARGER STAY


    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Intake.Intake Air Control System.Turbocharger  Installation
  1. Install the turbocharger stay with the 3 bolts.

    Torque:
    56 N*m{571 kgf*cm, 41 ft.*lbf}


10. INSTALL EXHAUST MANIFOLD CONVERTER SUB-ASSEMBLY
  1. Temporarily install the No. 1 manifold stay.



    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Intake.Intake Air Control System.Turbocharger  Installation
  1. Temporarily install a new turbine outlet elbow gasket and exhaust manifold converter with the 3 nuts.



    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Intake.Intake Air Control System.Turbocharger  Installation
  1. Temporarily install the 2 bolts and nut.



    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Intake.Intake Air Control System.Turbocharger  Installation
  1. Tighten the 3 nuts (Pushing the manifold converter against the No. 1 manifold stay).

    Torque:
    25 N*m{255 kgf*cm, 18 ft.*lbf}


    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Intake.Intake Air Control System.Turbocharger  Installation
  1. Tighten the 2 bolts and nut.

    Torque:
    56 N*m{571 kgf*cm, 41 ft.*lbf}


    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Intake.Intake Air Control System.Turbocharger  Installation
  1. Temporarily install the No. 2 exhaust manifold stay with the 2 bolts and nut.



    Lexus Is250, Is220D. Gse20 Ale20
  1. Tighten the 2 bolts (Pushing the No. 2 exhaust manifold stay against the manual transmission).

    Torque:
    56 N*m{571 kgf*cm, 41 ft.*lbf}


    Lexus Is250, Is220D. Gse20 Ale20
  1. Tighten the nut.

    Torque:
    56 N*m{571 kgf*cm, 41 ft.*lbf}


    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Intake.Intake Air Control System.Turbocharger  Installation
  1. Using pliers, slide the clip to install the No. 1 and No. 2 vacuum transmitting hose assembly.

    HINT:
    Make sure that the paint marks on the No. 1 and No. 2 vacuum transmitting hose assemblies and No. 1 and No. 2 vacuum pipes are aligned.


11. INSTALL FRONT EXHAUST PIPE ASSEMBLY


    Lexus Is250, Is220D. Gse20 Ale20
  1. Using vernier calipers, measure the free length of the compression springs.

    Minimum length:
    38.5 mm (1.516 in.)
    If the free length is less than the minimum, replace the compression spring.


    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Intake.Intake Air Control System.Turbocharger  Installation
  1. Fully insert 2 new gaskets to the exhaust manifold converter and front exhaust pipe assembly by hand.

    NOTICE:
    1. Be careful with the installation direction of the gasket.
    2. Do not reuse the gasket.
    3. Do not damage the gasket.
    4. To ensure a proper seal, do not use the tail exhaust pipe to force the gasket onto the front exhaust pipe.
      HINT:
      Using a plastic hammer, uniformly strike the gasket so that the gasket and front exhaust pipe are properly fit.
  1. Install the front exhaust pipe assembly.



    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Intake.Intake Air Control System.Turbocharger  Installation
  1. Install the 2 bolts and 2 compression springs.

    Torque:
    43 N*m{439 kgf*cm, 32 ft.*lbf}
    NOTICE:
    After installation, check that the clearance is almost the same at any point between the flanges of the tail exhaust pipe assembly and front exhaust pipe assembly.


    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Intake.Intake Air Control System.Turbocharger  Installation
  1. Install the 2 bolts and 2 compression springs.

    Torque:
    43 N*m{439 kgf*cm, 32 ft.*lbf}
    NOTICE:
    After installation, check that the clearance is almost the same at any point between the flanges of the exhaust manifold converter and front exhaust pipe assembly.


12. INSTALL BATTERY TRAY


13. INSTALL POWER STEERING ECU ASSEMBLY
HINT:
(Click here)


14. INSTALL AIR HOSE


15. INSTALL NO. 2 AIR HOSE


    Lexus Is250, Is220D. Gse20 Ale20
  1. Install the No. 2 air hose to the intercooler and secure it with the clip.

    HINT:
    Make sure that the claws on the clip are positioned as shown in the illustration.


16. INSTALL NO. 1 AIR TUBE


    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Intake.Intake Air Control System.Turbocharger  Installation
  1. Align the matchmarks, install the No. 1 air tube to the intercooler and secure it with the 2 clips.

    HINT:
    Make sure that the claws on the 2 clips are positioned as shown in the illustration.


17. INSTALL AIR CLEANER CAP WITH AIR CLEANER HOSE


    Lexus Is250, Is220D. Gse20 Ale20.2Ad-Fhv Intake.Intake Air Control System.Turbocharger  Installation
  1. Install the air cleaner cap with air cleaner hose.

    1. Connect the No. 2 ventilation hose (*1).

    2. Connect the hose band (*2).

    3. Connect the mass air flow meter connector (*3).

    4. Connect the 3 clamps (*4).



18. CHECK FOR EXHAUST GAS LEAKS


19. INSTALL ENGINE ROOM SIDE COVER RH


    Lexus Is250, Is220D. Gse20 Ale20
  1. Install the side cover with the 2 clips.



20. INSTALL COOL AIR INTAKE DUCT SEAL


    Lexus Is250, Is220D. Gse20 Ale20
  1. Install the intake duct seal with the 11 clips.



21. INSTALL NO. 1 ENGINE COVER


    Lexus Is250, Is220D. Gse20 Ale20
  1. Install the No. 1 engine cover.