Honda_Odyssey_2001-2006

Rocker Arms/Shafts

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Removal & Installation



J35a1 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
     
    Air intake tube
     
    Ignition coil covers
     
    Intake manifold cover
     
    Intake manifold
     
    Valve cover
     

  4.  
  5. Loosen the valve adjuster locknuts and screws so that all valves are closed.
  6.  
  7. Loosen the rocker arm shaft bolts evenly in sequence.

    Click image to see an enlarged view

    Fig. Exploded view of the rocker arms and shafts-J35A1 engine

  8.  

To install:

  1. Assemble the rocker arms and springs to the rocker arm shafts in their original positions.
  2.  
  3. Install the rocker arm assemblies. Tighten the bolts in sequence and in multiple passes to 17 ft. lbs. (24 Nm).
  4.  
  5. Adjust the valve clearance.
  6.  
  7. Install or connect the following:

    Valve covers
     
    Intake manifold
     
    Intake manifold cover
     
    Ignition coil covers
     
    Air intake tube
     
    Negative battery cable
     

  8.  
  9. Start the engine and check for leaks.

    Click image to see an enlarged view

    Fig. Rocker shaft tightening sequence-J25A1 engine

  10.  

J35a4 & J35a6 Engines
  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
     
    Air intake tube
     
    Ignition coil covers
     
    Intake manifold cover
     
    Intake manifold
     
    Valve cover
     

  4.  
  5. Loosen the valve adjuster locknuts and screws so that all valves are closed.
  6.  
  7. Loosen the rocker arm shaft mounting bolts 2 turns at a time in sequence. Do not remove the mounting bolts. They will keep the springs and rocker arms on the shaft.

    Click image to see an enlarged view

    Fig. Rocker arm shaft loosening sequence-J35A1 engine



    Click image to see an enlarged view

    Fig. Rocker arm shaft loosening sequence-J35A4 and J35A6 engines

  8.  
  9. Remove the rocker arms and shafts from the vehicle as an assembly.
    NOTE
    Keep all valvetrain components in order for assembly.

  10.  
  11. Remove the rocker arms and springs from the rocker arm shafts.

    Click image to see an enlarged view

    Fig. Exploded view of the rocker arms and shafts- J35A1 engine



    Click image to see an enlarged view

    Fig. Exploded view of the rocker arms and shafts-J35A4 and J35A6 engines

  12.  

To install:

  1. Assemble the rocker arms and springs to the rocker arm shafts in their original positions.
  2.  
  3. Install the rocker arm assemblies. Tighten the bolts in sequence 2 turns at a time to 17 ft. lbs. (24 Nm).
  4.  
  5. Adjust the valve clearance.
  6.  
  7. Install or connect the following:

    Valve covers
     
    Intake manifold
     
    Intake manifold cover
     
    Ignition coil covers
     
    Air intake tube
     
    Negative battery cable
     

  8.  
  9. Start the engine and check for leaks.

    Click image to see an enlarged view

    Fig. Rocker shaft tightening sequence-J35A1 engines



    Click image to see an enlarged view

    Fig. Rocker shaft tightening sequence-J35A4 engines



    Click image to see an enlarged view

    Fig. Rocker shaft tightening sequence-J35A6 engines

  10.  

J35a7 Engine
Front Head
  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
     
    Air intake tube
     
    Ignition coil covers
     
    Intake manifold cover
     
    Intake manifold
     
    Valve cover
     

  4.  
  5. Loosen the valve adjuster locknuts and screws so that all valves are closed.
  6.  
  7. Loosen the rocker arm shaft mounting bolts 2 turns at a time in sequence. Do not remove the mounting bolts. They will keep the springs and rocker arms on the shaft.

    Click image to see an enlarged view

    Fig. Front head rocker arm shaft loosening sequence-J35A7 engines

  8.  
  9. Remove the rocker arms and shafts from the vehicle as an assembly.
    NOTE
    Keep all valvetrain components in order for assembly.

  10.  
  11. Remove the rocker arms and springs from the rocker arm shafts.

    Click image to see an enlarged view

    Fig. Exploded view of the front head rocker arms and shafts-J35A7 engines

  12.  

To install:

  1. Assemble the rocker arms and springs to the rocker arm shafts in their original positions.
  2.  
  3. Install the rocker arm assemblies. Tighten the bolts in sequence 2 turns at a time to 17 ft. lbs. (24 Nm).
  4.  
  5. Adjust the valve clearance.
  6.  
  7. Install or connect the following:

    Valve covers
     
    Intake manifold
     
    Intake manifold cover
     
    Ignition coil covers
     
    Air intake tube
     
    Negative battery cable
     

  8.  
  9. Start the engine and check for leaks.

    Click image to see an enlarged view

    Fig. Front head rocker shaft tightening sequence-J35A7 engines

  10.  

Rear Head
  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
     
    Air intake tube
     
    Ignition coil covers
     
    Intake manifold cover
     
    Intake manifold
     
    Valve cover
     

  4.  
  5. Loosen the valve adjuster locknuts and screws so that all valves are closed.
  6.  
  7. Loosen the rocker bridge mounting bolts 2 turns at a time in sequence. Do not remove the mounting bolts. They will keep the springs and rocker arms on the shaft.

    Click image to see an enlarged view

    Fig. Rear head rocker arm shaft loosening sequence-J35A7 engines

  8.  
  9. Remove the rocker arms and shafts from the vehicle as an assembly.
    NOTE
    Keep all valvetrain components in order for assembly.

  10.  
  11. Remove the rocker arms and springs from the rocker arm shafts.

    Click image to see an enlarged view

    Fig. Exploded view of the rear head rocker arms and shafts-J35A7 engines

  12.  

To install:

  1. Remove all old liquid gasket from the rocker shaft holder and head.
  2.  
  3. Apply liquid gasket PN 08717-0004, or equivalent, to the rocker shaft holder mating surface of the head.
    NOTE
    Install the rocker shaft assembly within 4 minutes of gasket application.

  4.  
  5. Position the rocker shaft assembly and loosely install the bolts. Make sure that the rocker arms are correctly positioned on the valve stems and the dowel pins in the bridge are properly positioned in the head.
  6.  
  7. Tighten each bolt 2 turns at a time, in sequence to 16 ft. lbs. (22 Nm).

    Click image to see an enlarged view

    Fig. Rear head rocker assembly torque sequence-J35A7 engine

  8.  

 
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