MINI 2002-05

Camshaft, Bearings & Lifters

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Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions section.
    1. Remove or disconnect the following:
    2.  



    Battery
     
    Spark plugs
     
    Wheel well liners
     
    Cylinder head cover
     
    Left engine mount
     
    Hydraulic chain tensioner
     

  2.  
  3. Remove bolts from rocker arm shafts in sequence shown.
  4.  
  5. Install a special engine holding tool, 11-8-370, onto cylinder block and fixture of engine mount.
  6.  
  7. Remove the camshaft (CMP) sensor connector and then the sensor.
  8.  
  9. Rotate the engine until the triangular adjustment mark on the camshaft gear is at the 12 o-clock position. Apply a paint mark across the adjustment mark and timing chain for reassembly reference. Also mark the vibration damper and timing case cover with a paint reference mark.
  10.  


    Click image to see an enlarged view

    Fig. Showing rocker arm shaft bolt removal and tightening sequence-Cooper Coupe



NOTE
Brass color timing chain links are of no importance to chain timing.

  1. Install a special locking tool, 11-8-250, onto camshaft gear and loosen, but do not remove, the camshaft gear center bolt. Remove the special tool.
  2.  
  3. Make sure that paint reference mark on camshaft gear and timing chain are aligned, then remove the camshaft gear center bolt.
  4.  
  5. Remove all the camshaft bearing caps and the camshaft. Be sure to keep bearing caps in same order and orientation as removed.
  6.  

To install:

  1. Check components for signs of wear or damage. Replace components as necessary.
  2.  


NOTE
If camshaft is replaced with a new unit, rocker arms must also be replaced.


CAUTION
Install bearing caps in same positions as removed.

  1. Lubricate camshaft bearing journals and rocker arm rolling areas with clean engine oil.
  2.  
  3. Install timing chain to the camshaft gear.
  4.  
  5. Ensure that the timing reference paint marks are aligned.
  6.  
  7. Install the camshaft gear center bolt.
  8.  
  9. Install the camshaft gear locking tool, 11-8-250, then torque the center bolt to 75 ft. lbs. (102 Nm). Remove the locking tool.
  10.  
  11. Apply a thin coat of engine oil to the camshaft seal.
  12.  
  13. Remove the engine holding tool, 11-8-370.
  14.  
  15. Install or connect the following:

    CMP sensor and connector
     
    Rocker arm shafts; torque bolts first evenly by hand, then to 22 ft. lbs. (30 Nm) in sequence shown.
     
    Hydraulic chain tensioner
     

  16.  
  17. Install the left engine (hydra) mount. Torque the bolts as follows:

    M10x110 bolts: 41 ft. lbs. (56 Nm), then an additional 90 degrees
     
    Other bolt: 74 ft. lbs. (100 Nm)
     

  18.  
  19. Install or connect the following:

    Cylinder head cover
     
    Wheel well liners
     
    Spark plugs
     
    Battery
     

  20.  

  1. Before servicing the vehicle, refer to the precautions section.
    1. Remove or disconnect the following:

      Battery
       
      Spark plugs
       
      Wheel well liners
       
      Cylinder head cover
       
      Left engine mount
       
      Hydraulic chain tensioner
       

    2.  

  2.  
  3. Remove bolts from rocker arm shafts in sequence shown.

    Click image to see an enlarged view

    Fig. Showing rocker arm shaft bolt removal and tightening sequence-Cooper Coupe

  4.  
  5. Install a special engine holding tool, 11-8-370, onto cylinder block and fixture of engine mount.
  6.  
  7. Remove the camshaft (CMP) sensor connector and then the sensor.
  8.  
  9. Rotate the engine until the triangular adjustment mark on the camshaft gear is at the 12 o-clock position. Apply a paint mark across the adjustment mark and timing chain for reassembly reference. Also mark the vibration damper and timing case cover with a paint reference mark.
    NOTE
    Brass color timing chain links are of no importance to chain timing.

  10.  
  11. Install a special locking tool, 11-8-250, onto camshaft gear and loosen, but do not remove, the camshaft gear center bolt. Remove the special tool.
  12.  
  13. Make sure that paint reference mark on camshaft gear and timing chain are aligned, then remove the camshaft gear center bolt.
  14.  
  15. Remove all the camshaft bearing caps and the camshaft. Be sure to keep bearing caps in same order and orientation as removed.
  16.  

To install:

  1. Check components for signs of wear or damage. Replace components as necessary.
    NOTE
    If camshaft is replaced with a new unit, rocker arms must also be replaced.


    CAUTION
    Install bearing caps in same positions as removed.

  2.  
  3. Lubricate camshaft bearing journals and rocker arm rolling areas with clean engine oil.
  4.  
  5. Install timing chain to the camshaft gear.
  6.  
  7. Ensure that the timing reference paint marks are aligned.
  8.  
  9. Install the camshaft gear center bolt.
  10.  
  11. Install the camshaft gear locking tool, 11-8-250, then torque the center bolt to 75 ft. lbs. (102 Nm). Remove the locking tool.
  12.  
  13. Apply a thin coat of engine oil to the camshaft seal.
  14.  
  15. Remove the engine holding tool, 11-8-370.
  16.  
  17. Install or connect the following:

    CMP sensor and connector
     
    Rocker arm shafts; torque bolts first evenly by hand, then to 22 ft. lbs. (30 Nm) in sequence shown.
     
    Hydraulic chain tensioner
     

  18.  
  19. Install the left engine (hydra) mount. Torque the bolts as follows:

    M10x110 bolts: 41 ft. lbs. (56 Nm), then an additional 90 degrees
     
    Other bolt: 74 ft. lbs. (100 Nm)
     

  20.  
  21. Install or connect the following:

    Cylinder head cover
     
    Wheel well liners
     
    Spark plugs
     
    Battery
     

  22.  

 
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