TURBOCHARGER INSPECTION


  1. VISUALLY CHECK TURBOCHARGER SUB-ASSEMBLY


    1. A01BGEHE01

      Check for deformation and cracks in the turbine wheel on the exhaust side.

      If the turbine wheel is cracked or deformed, replace the turbocharger sub-assembly.

      Text in Illustration

      *1

      		 Turbine Wheel

  2. INSPECT AXIAL PLAY OF TURBINE SHAFT


    1. A01BEVY

      Move the turbine shaft in an axial direction and measure the axial play of the turbine shaft using a dial indicator.

      Note

      Turbocharger sub-assembly and dial indicators are surely fixed when performing measurement.

      Maximum axial play
      0.008 mm (0.00031 in.)

      If the axial play is greater than the maximum, replace the turbocharger.

  3. INSPECT RADIAL PLAY OF TURBINE SHAFT


    1. A01BDWK

      Using a dial indicator, insert the needle of the dial indicator into the oil outlet hole, and set it in the center of the turbine shaft.

    2. Move the turbine shaft in a radial direction and measure the radial play of the turbine shaft.

      Maximum radial play
      0.110 mm (0.0043 in.)

      If the radial play is greater than the maximum, replace the turbocharger.

  4. CHECK TURBINE SHAFT ROTATION


    1. A01BBSOE01

      Rotate the turbine shaft with your finger and check that it rotates smoothly.

      Tech Tips

      Even if it takes effort a little to rotate the turbine wheel, this is not a problem.

      If the turbine wheel does not rotate smoothly, replace the turbocharger sub-assembly.

    2. Check the turbo housing.


      1. Visually check the turbine housing and compressor housing for damage or breaks.

        Tech Tips

        If any damage or breaks are found in the housings, replace the turbocharger assembly.

      2. Visually check the fins of the impeller and turbine wheel for damage or breaks.

  5. INSPECT ACTUATOR AND WASTE GATE VALVE OPERATION


    1. A01BI35E01

      Disconnect the actuator hose from the compressor housing.

    2. Using SST, apply pressure to the actuator.

      SST
      09992-00242
      Valve opening pressure
      Specified pressure* (See attached table below)

      Note

      Never apply more than predetermined maximum pressure*to the actuator.

      Tech Tips

      *: Valve opening pressure and predetermined maximum pressure above differ according to the turbocharger. For the specifications, see attached table below.

      Specifications:
      Engine Type

      Turbocharger Sub-assembly

      (Part No.)

      Valve Opening Pressure

      (kPa: Gauge Pressure)

      Maximum Pressure

      (kPa: Gauge Pressure)

      Reference:

      Rod Stroke

      (mm)
      2KD-FTV 17201-30070 130 147.8 0.89 to 1.74
      17201-30080 119 136 0.98 to 1.91

    3. Check that the actuator push rod moves and that the waste gate valve opens.

      If the rod does not move, replace the turbocharger sub-assembly.

    4. Reconnect the actuator hose to the compressor housing.