Maxima 2007

Removal & Installation

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  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Drain the cooling system.
  4.  
  5. Position a jack under the oil pan for support. Be sure to place a block of wood on the jack for protection of the engine parts.
  6.  
  7. Remove or disconnect the following:

    Negative battery cable
     
    Right side engine mount and bracket
     
    Drive belts and the idler pulley bracket
     
    Chain tensioner cover and the water pump cover

    Click image to see an enlarged view

    Fig. Water pump and timing cover assembly-Maxima 3.5L engine

     

  8.  
  9. Push the timing chain tensioner sleeve and apply a stopper pin so it does not return.

    Click image to see an enlarged view

    Fig. Apply a stopper pin so the timing chain tensioner sleeve does not return-Maxima 3.5L engine

  10.  
  11. Remove or disconnect the following:

    Timing chain tensioner assembly
     
    3 bolts that secure the water pump
     

  12.  
  13. Rotate the crankshaft 20 degrees counterclockwise to provide timing chain slack.
  14.  
  15. Put M8 bolts in 2 M8 threaded holes of the water pump.
  16.  
  17. Tighten each bolt by turning alternately 1 / 2 turn until they reach the timing chain rear case. Be sure to turn each bolt 1 / 2 turn at a time to prevent damage.
  18.  
  19. Lift up the water pump and remove it.
  20.  
  21. When removing the water pump, do not allow the water pump gear to hit the timing chain.
  22.  
  23. Remove and discard the O-rings from the water pump.
  24.  
  25. Clean all traces of liquid gasket from the water pump and covers.
  26.  

To install:

  1. Install the water pump using new O-rings to the engine block. Torque the 3 water pump mounting bolts evenly to 75-95 inch lbs. (8.5-10.7 Nm).
  2.  
  3. Rotate the crankshaft pulley to its original position by turning it 20 degrees clockwise.
  4.  
  5. Install the timing chain tensioner and torque the bolts to 75-89 inch lbs. (9-10 Nm).
  6.  
  7. Remove the stopper pin from the timing chain tensioner.
  8.  
  9. Apply a continuous [0.091-0.130 in. (2.3-3.3mm)] bead of liquid sealant to the mating surfaces of the timing chain tensioner and water pump covers.
  10.  
  11. Install or connect the following:

    Timing chain tensioner and water pump covers to the engine block. Torque the bolts to 87-113 inch lbs. (10-13 Nm)
     
    Drive belts and the idler pulley bracket
     
    Right side engine mounting bracket and the engine mount
     
    Negative battery cable
     

  12.  
  13. Remove the jack from under the engine and install the drain plugs to the cylinder block.
  14.  
  15. Fill the cooling system.
  16.  
  17. Start the engine, check for leaks and repair if necessary.
  18.  

 
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