Section 1.7 Front Radial Seal

Section 1.7
Front Radial Seal

Two Kent-Moore tools are required for this procedure: ‪

Section 1.7.1
Front Radial Seal Removal

Remove the front radial seal as follows:‪

  1. Park the vehicle on a level spot, set the parking brakes, and chock the tires.
    warning

    PERSONAL INJURY

    To avoid injury before starting and running the engine, ensure the vehicle is parked on a level surface, parking brake is set, and the wheels are blocked.‪

  2. Tilt the hood.
  3. From underneath the front of the engine, remove the bumper beam. Push the support angle bracket fairing down to create an opening in the bumper.
  4. Remove the vibration damper from the engine through the opening in the bumper. Refer to "1.12.1 Crankshaft Vibration Damper Removal" .
  5. Check the seal for wear at the places where it contacts the crankshaft.

    NOTICE:

    When drilling pilot holes for the removal of the seal ensure that the drill is straight and perpendicular to the seal. Failure to drill the hole straight could result in damage to the seal bore, resulting in the replacement of the front cover housing.‪

    Note: When drilling holes for screws, make sure to coat the drill bit with grease to catch the shavings.

    Click to see this graphic in a separate window

     1. Front Radial Seal‪

     2. Front Cover Housing‪

     3. Screws‪

    Figure 1. Front Seal Removal Tool J-47272

  6. Drill 3.174 mm (0.125 in.) pilot holes and use the sheet metal screws and the front seal puller (J–47272, part of toolset J–47273) , remove the front radial seal from the front cover housing. Discard the seal.
  7. If installed, check the seal wear sleeve for nicks, scratches or grooves. If necessary, replace wear sleeve. Refer to "1.9.1 Front Crankshaft Seal Wear Sleeve Removal " .

Section 1.7.2
Front Radial Seal Installation

Install the front radial seal as follows:‪

Note: The radial seal does not need to be lubricated.

  1. Clean the sealing surfaces on the cover and the cylinder block.

    Note: The seal installation is the same for a standard size and oversize front radial seal. The front standard size radial seal has an inside diameter of 100.0 mm (3.94 in.). The oversize radial seal has an inside diameter of 105.0 mm (4.13 in.).

  2. Slide the seal over the center guide (J–45391–2, part of toolset J–45391 and service kit J–47273). Place the guide on the front of the crankshaft. Fit the front seal installer (J–45391–1, part of toolset J–45391 and service kit J–47273) over the guide and tap it into the front cover housing until it bottoms. Visually check the seal and sealing lip for correct installation. See Figure "Front Radial Seal Location" .
    Click to see this graphic in a separate window

     1. Front Radial Seal‪

     2. Front of Crankshaft‪

    Figure 2. Front Radial Seal Location

  3. Install the vibration damper on the crankshaft. Refer to "1.12.2 Crankshaft Vibration Damper Installation" .
  4. Install the three drive belts.
  5. Install the support angle bracket fairing. Install the bumper beam.
    warning

    PERSONAL INJURY

    To avoid injury before starting and running the engine, ensure the vehicle is parked on a level surface, parking brake is set, and the wheels are blocked.‪

    warning

    ENGINE EXHAUST

    To avoid injury from inhaling engine exhaust, always operate the engine in a well-ventilated area. Engine exhaust is toxic.‪

  6. Start the engine and check the engine oil pressure at idle. Engine oil pressure at idle should be at least 50 kPa (7 psi). Looks for any oil leaks, repair as necessary.
  7. Close the hood, and remove the chocks from the tires.


MBE 4000 Service Manual - 6SE412
Generated on 10-13-2008

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