FUEL SUPPLY PUMP REMOVAL

CAUTION / NOTICE / HINT

Note:

  • After the engine has stopped, wait at least 1 minute before releasing the high pressure lines.

  • When working on the fuel circuit, protect the generator assembly against dirt contamination.

    Cover the generator assembly with suitable materials.

    Failure to comply with this procedure may result in a generator assembly malfunction.

  • A316354E04

    After disconnecting the pressure line, it is absolutely essential to seal the openings in the fuel supply pump assembly and the common rail assembly with SST.

    SST

    PZ4TB-04941-79

  • The position of the fuel supply pump assembly in relation to the valve gear does not affect its function. However, it must be taken into account during removal and installation.

PROCEDURE

  1. REMOVE FUEL INLET PIPE SUB-ASSEMBLY

    (Click here)

  2. SET NO. 1 CYLINDER TO TDC/COMPRESSION

    Note:

    Set the No. 1 cylinder to TDC/compression so that the supply pump assembly can be removed (Click here).

  3. REMOVE FUEL SUPPLY PUMP ASSEMBLY

    Note:

    Do not remove SST A from the injection pump drive gear until all repair work has been completed.

    1. A316272E02

      Disconnect the connector from the fuel quantity control valve.

    2. Loosen the 2 clamps and disconnect the fuel feed line hose and fuel return line hose from the fuel supply pump assembly.

      Table 1. Text in Illustration

      *1

      Fuel Feed Line Hose

      *2

      Fuel Return Line Hose

    3. Remove the 2 clamps from the fuel feed line hose and fuel return line hose.

    4. A316273

      Remove the sealing cap from the timing chain cover plate.

    5. Remove the O-ring from the sealing cap.

    6. A316274E02

      Using SST B, install SST A to position the fuel supply pump assembly. Then remove SST B.

      SST

      PZ4TB-04967-25

      Note:

      SST A remains in the timing chain cover plate until the end of the repair work.

    7. A316275

      Remove the 4 bolts and fuel supply pump assembly support.

    8. A316276

      Remove the 2 bolts from the fuel supply pump assembly.

    9. A316277E01

      Loosen the central bolt connection between the fuel supply pump assembly and injection pump drive gear.

      Note:

      • SST A remains in the timing chain cover plate.

      • The central bolt is supported on SST A until the fuel supply pump assembly is pressed out.

      • A316352E04

        The central bolt remains inside SST A attached to the injection pump drive gear.

      Table 2. Text in Illustration

      *1

      Central Bolt

    10. Remove the fuel supply pump assembly from the cylinder block.

    11. Remove the 2 bolts and fuel quantity control valve.