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MBE 4000 PROTECTIVE SLEEVE

Perform the following procedures for removal and installation of the protective sleeve. ‪

Protective Sleeve Removal

Remove the protective sleeve as follows: ‪

HOT COOLANT

To avoid scalding from the expulsion of hot coolant, never remove the cooling system pressure cap while the engine is at operating temperature. Wear adequate protective clothing (face shield, rubber gloves, apron, and boots). Remove the cap slowly to relieve pressure.

  1. Drain the engine coolant into a clean container. If the coolant is clean, save it for later use.
  2. Remove the injector nozzle.
  3. Using the claw-foot wrench (904 589 00 07 00) , remove the protective sleeve from the cylinder head. See Figure 42109 .

    1. Protective Sleeve ‪

    2. O-ring ‪

    Pulling the Protective Sleeve

  4. Remove the O-ring from the cylinder head. See Figure 42110 .

    1. Nozzle ‪

    3. O-ring ‪

    2. Protective Sleeve ‪

    Removing the O-ring

    Note: Replace the O-ring whenever the protective sleeve is removed.

Protective Sleeve Installation

Install the protective sleeve as follows: ‪

  1. Clean the sealing surfaces of the protective sleeve and the cylinder head.
  2. Lubricate the new O-ring with a light coating of engine oil. Install the O-ring in the cylinder head.
  3. Install the protective sleeve into the cylinder head. Tighten the protective sleeve 45 Nm (33 lbft).
  4. Install the nozzle. Refer to section .
  5. Fill the cooling system with clean coolant.

Crank Angle Position Sensor Replacement

Replace the crank angle position sensor as follows: ‪

  1. Disconnect the electrical connector. See Figure 42111 .

    1. Crank Angle Position Sensor ‪

    3. Flywheel Housing (Timing Case) ‪

    2. Electrical Connector ‪

    Crank Angle Position Sensor Installation

  2. Remove the sensor from the access hole in the flywheel housing.
  3. Install a new sensor in the flywheel housing.
  4. Connect the electrical connector.

Note: Be sure that the correct electrical connector is connected to the sensor.