Nissan Car 350Z & Maxima 1999-06

Rocker Arm (Valve) Cover

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Removal & Installation



1.6L Engine
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Spark plugs and wires
     
    Positive Crankcase Ventilation (PCV) valve
     
    Cylinder head front mounting bracket
     
    Vacuum hose
     
    Rocker arm cover and discard the gasket
     

  4.  
  5. Clean all mating surfaces of any residual gasket material.
  6.  

To install:

Click image to see an enlarged view

Fig. Tighten the rocker cover bolts in sequence

  1. Install or connect the following:

    Rocker cover with a new gasket and torque the bolts, in sequence, to 35 inch lbs. (4 Nm)
     
    Vacuum hose
     
    Cylinder head front mounting bracket and torque the bolts to 44 inch lbs. (5 Nm)
     
    Spark plugs and wires
     
    PCV valve
     
    Negative battery cable
     

  2.  

2.0L Engine
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Spark plugs and wires
     
    Vacuum hose
     
    Rocker arm cover and oil separator as an assembly
     

  4.  

To install:

Click image to see an enlarged view

Fig. Tighten the rocker cover bolts in sequence

  1. Install or connect the following:

    Rocker cover and oil separator with a new gasket and torque the bolts as follows:
     

    1. Step 1: Tighten bolts 1-10-11-13-8 to 89 inch lbs. (10 Nm).
    2.  
    3. Step 2: Tighten all bolts to 89 inch lbs. (10 Nm).

      Vacuum hose
       
      Spark plugs and wires
       
      PCV valve
       
      Negative battery cable
       

    4.  

  2.  

2.4L Engine
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Spark plugs and wires
     
    Vacuum hose
     
    Rocker arm cover
     

  4.  

To install:

Click image to see an enlarged view

Fig. Tighten the rocker arm bolts in sequence

  1. Install or connect the following:

    Rocker arm cover with a new gasket and torque the bolts as follows:
     

    1. Step 1: Tighten bolts 1-5-6-4 to 35 inch lbs. (4 Nm).
    2.  
    3. Step 2: Tighten all bolts to 95 inch lbs. (11 Nm).

      Vacuum hose
       
      Spark plugs and wires
       
      Negative battery cable
       

    4.  

  2.  

3.0L Engine
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Blow by hose
     
    Positive Crankcase Ventilation (PCV) valve
     
    Rocker arm cover and discard the gasket
     

  4.  

To install:

Click image to see an enlarged view

Fig. Tighten the rocker arm bolts in sequence

  1. Install or connect the following:

    Rocker arm cover with a new gasket and torque the bolts as follows:
     

    1. Step 1: Tighten bolts 1-10 to 80 inch lbs. (9 Nm).
    2.  
    3. Step 2: Tighten bolts 1-10 to 80 inch lbs. (9 Nm).

      PCV valve
       
      Blow by hose
       
      Negative battery cable
       

    4.  

  2.  

 
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