Skip to main content

MBE 4000 FRONT IDLER AND TENSIONER SUPPORT

Perform the following procedures for removal and installation of the front idler and tensioner support. ‪

Front Idler and Tensioner Support Removal

Remove the front idler and tensioner support as follows: ‪

  1. Disconnect the batteries.
  2. Release the tension on the main drive belt and fan belt. Set the belts aside.
  3. Remove the upper alternator mounting bolt and the lower alternator mounting bolt. Slide the alternator backwards (towards the rear of the engine).
  4. Remove the belt tensioner from the front idler and tensioner support.
  5. Remove the support from the cylinder block. See Figure 42160 .

    1. Lower Coolant Tube ‪

    5. Coolant Pump Housing ‪

    2. Mounting Bolt, Inlet Pipe ‪

    6. Front Idler and Tensioner Support ‪

    3. Inlet Pipe ‪

    7. Mounting Bolt, Front Idler and Tensioner Support ‪

    4. Inlet Pipe Gasket ‪

    Front Idler and Tensioner Support (exploded view)

Front Idler and Tensioner Support Installation

Install the front idler and tenisoner support as follows: ‪

  1. Install the front idler and tensioner support on the cylinder block. Tighten the mounting bolts 60 Nm (44 lbft).
  2. Install the belt tensioner on the support.
  3. Move the alternator forward and mount it on the engine, as removed.
  4. Release the tension on the main belt tensioner and install the main drive belt. Release the tension on the fan belt tensioner and install the fan belt.
  5. Connect the batteries.