ДВИГАТЕЛЬ ПРОВЕРКА БЕЗ СНЯТИЯ С АВТОМОБИЛЯ


  1. INSPECT ENGINE IDLE SPEED

    Note


    • Turn all the electrical systems and the A/C off.

    • Inspect the engine idle speed with the cooling fan off.

    • When checking the idle speed, shift the transmission to the neutral position.


    1. Warm up and stop the engine.

    2. When using the intelligent tester:


      1. Connect the intelligent tester to the DLC3.

      2. Turn the tester on.

      3. Turn the ignition switch to ON.

      4. Enter the following menus:

        Powertrain / Engine and ECT / Data List / Engine SPD.

        Tech Tips

        Refer to the intelligent tester operator's manual for further information regarding the selection of Data List.

      5. Inspect the engine idling speed.

        Idling speed
        720 to 820 rpm

      6. Fully depress the accelerator pedal.

      7. Check the maximum speed.

        Maximum speed
        5150 to 5250 rpm

      8. Turn the ignition switch off.

      9. Disconnect the intelligent tester from the DLC3.

    3. A0117YXE32

      When not using the intelligent tester:


      1. Install SST to terminal 9 (TAC) of DLC3, and then connect a tachometer.

        SST
        09843-18040

        Note

        Examine the terminal numbers before connecting them. Connecting the wrong terminals can damage the engine.

      2. Turn the ignition switch to ON.

      3. Inspect the engine idling speed.

        Idling speed
        720 to 820 rpm

      4. Fully depress the accelerator pedal.

      5. Check the maximum speed.

        Maximum speed
        5150 to 5250 rpm

      6. Turn the ignition switch off.

      7. Disconnect the tachometer.

      8. Remove SST from terminal 9.

  2. INSPECT COMPRESSION


    1. Warm up and stop the engine.

    2. Remove the 4 glow plugs Click here.

      Note

      In order to avoid shorting the circuit of the wire harness connected to the glow plug No. 1 connector, wind vinyl tape around the wire harness terminal portion.

    3. A0119VK

      Disconnect all the connectors from the 4 injectors.

    4. Connect the negative battery terminal.

    5. Crank the engine to remove foreign objects before measuring the compression.

    6. A011AIWE02
      Text in Illustration
      *1 SST (Attachment)

      Install the attachment into the glow plug hole.

      SST
      09992-00026   ( 09992-00211, 09992-00121 )
      Torque:
      13 N*m  { 133 kgf*cm, 10 ft.*lbf }
    7. A0118C9E02
      Text in Illustration
      *1 SST (Compression Gauge)

      Connect a compression gauge to the attachment.

      SST
      09992-00026   ( 09992-00211, 09992-00121 )

    8. While cranking the engine, measure the compression pressure.

      Compression pressure
      2300 kPa (23.5 kgf/cm2, 334 psi)
      Minimum pressure
      2050 kPa (20.9 kgf/cm2, 297psi)
      Difference between each cylinder
      500 kPa (5.0 kgf/cm2, 71 psi) or less

      Note


      • Use a fully-charged battery so that the engine speed can be increased to 250 rpm or more.


      • Inspect the other cylinders in the same way.


      • Measure the compression pressure in as short a time as possible.

      If the cylinder compression is low, pour a small amount of engine oil into the cylinder through the glow plug hole, and then inspect it again.

      Tech Tips


      • If adding oil increases the compression, the piston rings and/or cylinder bore may be worn or damaged.

      • If the pressure stays low, a valve may be stuck or seated improperly, or there may be leakage from the gasket.

    9. Remove the SST (compression gauge and attachment).

    10. Disconnect the cable from the negative battery terminal.

    11. Connect all the connectors to the 4 injectors.

    12. Install the 4 glow plugs Click here.