Maxima 2007

Oil Pan

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Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Drain the engine oil.
  4.  
  5. Remove or disconnect the following:

    Negative battery cable
     
    Engine undercovers
     
    Lower oil pan bolts in the reverse of the installation sequence
     

  6.  
  7. Insert a seal cutter between the steel and aluminum oil pan.
  8.  
  9. Tapping the cutter with a hammer, slide it around the entire edge of the oil pan. Be careful not to damage the aluminum mating surface of the upper oil pan.

    Lower oil pan and the oil strainer
     
    Front exhaust pipe and its support
     

  10.  
  11. Hang the engine at the right and left side engine slingers with a suitable hoist.
  12.  
  13. Position a suitable jack under the transmission/transaxle.

    Crankshaft Position (CKP) sensors (REFERENCE and POSITION) from the oil pan
     
    Front and rear engine mounting nuts and bolts
     
    Center crossmember assembly
     
    Engine drive belts
     
    A/C compressor and mounting bracket
     
    Rear cover plate and the lower transaxle bolts
     
    Aluminum (upper) oil pan bolts in the reverse of the installation sequence

    Click image to see an enlarged view

    Fig. Aluminum (upper) oil pan bolt loosening sequence-3.5L engine

     

  14.  
  15. Insert a seal cutter between the aluminum oil pan and the engine block.
  16.  
  17. Tapping the cutter with a hammer, slide it around the entire edge of the oil pan. Be careful not to damage the mating surfaces of the oil pan or engine block.
  18.  
  19. Remove or disconnect the following:

    Oil pan assembly
     
    Bolts that secure the baffle plate and the baffle plate
     
    O-rings from the cylinder block and oil pump body
     

  20.  

To install:

  1. Install or connect the following:

    Baffle plate to the oil pan and torque the bolts to 22-27 inch lbs. (2.5-3.1 Nm) and apply sealant to the front and rear seal of the oil pan
     
    New O-rings to the cylinder block and the oil pump body
     

  2.  
  3. Apply a 4.5-5.5mm wide continuous bead of liquid gasket to the upper oil pan mating surface and install the oil pan. Torque the bolts in sequence to 16 ft. lbs. (22 Nm).

    Click image to see an enlarged view

    Fig. To prevent pan warpage, tighten the aluminum oil pan bolts in the sequence shown-3.5L engine

  4.  
  5. Install or connect the following:

    Oil pan strainer and torque the bolts to 12-14 ft. lbs. (16-19 Nm)
     
    Rear cover plate and lower transaxle bolts
     
    A/C compressor and bracket
     
    Drive belts
     
    Center crossmember
     
    Front and rear engine mount hardware
     
    CKP sensors
     
    Front exhaust tube and support
     
    Oil strainer
     
    Lower oil pan and torque the bolts, in sequence, to 80 inch lbs. (9 Nm)
     
    Engine under covers
     
    Negative battery cable
     

  6.  
  7. After waiting approximately 30 minutes, fill the engine with clean oil.
  8.  
  9. Start the vehicle, check for leaks, and repair if necessary.
  10.  

 
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