Corvette 1997-2005

Rocker Arms & Pushrods

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Removal & Installation




NOTE
Always keep the rocker arms and pushrods in order so they can be installed in their original positions.

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Relieve the fuel system pressure.
  4.  
  5. Remove or disconnect the following:

    Negative battery cable
     
    Engine sight cover
     
    Alternator electrical connector, left side
     
    Fuel rail cover
     
    Ignition coil assembly
     
    Rocker arm cover and gasket
     
    Rocker arms
     
    Push rods
     
    Rocker arm pivot support, if necessary a
     

  6.  

To install:

  1. Lubricate the rocker arms and pushrods with clean engine oil.
  2.  
  3. Lubricate the flange and washer surface of the rocker arm mounting bolts.
  4.  
  5. Install the rocker arm pivot support, if removed.
  6.  
  7. Install the pushrods, if removed.
  8.  
  9. Install the rocker arms but do not tighten the bolts at this time.
  10.  
  11. Rotate the crankshaft so the No. 1 piston is at Top Dead Center (TDC).
  12.  
  13. With the engine in this position, tighten the exhaust valve rocker arm bolts on cylinders No. 1, 2, 7 and 8 to 22 ft. lbs. (30 Nm), then, tighten the intake valve rocker arm bolts on cylinders No. 1, 3, 4 and 5 to 22 ft. lbs. (30 Nm).
  14.  
  15. Rotate the crankshaft 1 revolution (360 degrees).
  16.  
  17. With the engine in this position, tighten the exhaust valve rocker arm bolts on cylinders No. 3, 4, 5 and 6 to 22 ft. lbs. (30 Nm), then, tighten the intake valve rocker arm bolts on cylinders No. 2, 6, 7 and 8 to 22 ft. lbs. (30 Nm).
  18.  
  19. Install or connect the following:

    Rocker arm cover using a new gasket and torque the bolts to 106 inch lbs. (12 Nm)
     
    Ignition coil assembly
     
    Fuel rail cover
     
    Alternator electrical connectors, left side
     
    Engine sight cover
     
    Negative battery cable
     

  20.  
  21. Start the vehicle and check for leaks.
  22.  

 
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