Acura CL Integra NSX RL RSX TL TSX 2001-2006

Camshafts, Bearings, & Lifters

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Removal & Installation




NOTE
The radio may have a coded theft protection circuit. Obtain the code from the owner before disconnecting the battery, removing the radio fuse, or removing the radio.


NOTE
The radio may have a coded theft protection circuit. Obtain the code from the owner before disconnecting the battery, removing the radio fuse, or removing the radio.

Integra Models
1.8L (B18b1) 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
     
    Spark plug wires
     
    Cylinder head cover and timing belt cover
     

  4.  
  5. Rotate the crankshaft to Top Dead center (TDC), compression of No. 1 piston and remove the timing belt.
  6.  
  7. Remove the distributor from the cylinder head.
  8.  
  9. Install 5.0mm pin punches to the No.1 camshaft holders, then remove the camshaft sprockets.
  10.  
  11. Loosen the valve adjusters to remove as much spring tension as possible.
  12.  
  13. Remove the pin punches from the camshaft holders.
  14.  

To install:

  1. Check the following before installing the camshafts:
    1. Be certain the keyways on the camshafts are facing UP (No. 1 cylinder at TDC).
    2.  
    3. The valve adjuster locknuts should be loosened and the adjusting screws backed off before installation.

      Click image to see an enlarged view

      Fig. Exploded view of the cylinder head-1.8L (B18B1) engine

    4.  

  2.  
  3. Lubricate the rocker arms and camshafts with clean oil.
  4.  
  5. Place the rocker arms on the pivot bolts and the valve stems, making sure that the rocker arms are in their original positions.
  6.  
  7. Install the camshaft seals with the open side (spring) facing in. Lubricate the lip of the seal.
  8.  
  9. Be sure the keyways on the camshafts are facing up and install the camshafts to the cylinder head.
  10.  
  11. Apply liquid gasket to the head mating surfaces of the No. 1 and No. 6 camshaft holders, then install them along with No. 2, 3, 4 and 5 camshaft holders. The arrows stamped on the holders should point toward the timing belt. Do not apply oil to the holder mating surface where the camshaft seals are housed.
  12.  
  13. Tighten the camshaft holders temporarily and be sure that the rocker arms are properly positioned.
  14.  
  15. Press the oil seals into the No.1 camshaft holders with a seal driver.
  16.  
  17. Tighten the bolts in a crisscross pattern to 84 inch lbs. (10 Nm). Check that the rockers do not bind on the valves.
  18.  
  19. Install the cylinder head plug to the end of the cylinder head. If the plug has alignment marks, align the marks with the cylinder head upper surface.
  20.  
  21. If equipped with a timing belt back cover, install the cover and tighten the bolts to 84 inch lbs. (10 Nm).
  22.  
  23. Install 5.0mm pin punches to the No.1 camshaft holders, then install the camshaft pulley keys onto the grooves in the camshafts.
  24.  
  25. Push the camshaft pulleys onto the camshafts, then tighten the retaining bolts to 27 ft. lbs. (38 Nm).
  26.  
  27. Install the timing belt and timing belt covers. Remove the pin punches from the camshaft holders.
  28.  
  29. Adjust the valves and pour oil over the camshafts and rocker arms.
  30.  
  31. Install or connect the following:

    Cylinder head cover and engine ground cable
     
    Distributor to the cylinder head and reconnect the spark plug wires to the spark plugs
     
    Negative battery cable and enter the radio security code
     

  32.  
  33. Change the engine oil. Wait at least 20 minutes for the sealant to cure before filling the engine with oil.
  34.  

1.8L (B18c1, B18c5) Engines
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Be sure the crankshaft is at TDC/compression on No. 1 cylinder by aligning the white mark on the crankshaft pulley with the pointer on the lower timing belt cover.
  6.  
  7. Remove or disconnect the following:

    Strut brace
     
    Cylinder head cover, timing belt cover, and timing belt
     
    Camshaft pulleys and back cover
     

  8.  
  9. Loosen the rocker arm locknuts and adjusting screws.
  10.  
  11. Remove the camshaft holder bolts, then, remove the camshaft holder plates, the camshaft holders, and camshafts.
  12.  

To install:

  1. Be sure that the keyways on the camshafts are facing up and that the rocker arms are in their original position. The valve locknuts should be loosened and the adjusting screw backed off before installation
  2.  
  3. Install or connect the following:

    Camshafts
     
    Camshaft seals with the open side facing in
     
    Rubber cap with liquid gasket applied
     
    O-ring and the dowel pin to the oil passage of the No. 3 camshaft holder
     

  4.  
  5. Apply liquid gasket to the head of the mating surfaces of the No. 1 and No. 5 camshaft holders, then install them, along with No. 2, 3, and 4. Be sure to pay attention to the following points:

    Do not apply oil to the holder mating surface of camshaft seals
     
    The arrows marked on the camshaft holders should point to the timing belt
     

  6.  
  7. Tighten the camshaft holders temporarily. Be sure that the rocker arms are properly positioned on the valve stems.
  8.  
  9. Tighten the camshaft holder bolts in 2 steps, following the proper sequence, to ensure that the rockers do not bind on the valves. Tighten the 8 x 1.25mm bolts to 20 ft. lbs. (27 Nm). Tighten the 6 x 1.0mm bolts to 84 inch lbs. (10 Nm).
  10.  
  11. Install or connect the following:

    Keys into the camshaft grooves-To set the No. 1 piston at TDC, align the holes on the camshaft with the holes in the No. 1 camshaft holders and insert 5.0mm pin punches into the holes.
     
    Back cover and push the camshaft pulleys onto the camshafts, then tighten the retaining bolts to 27 ft. lbs. (37 Nm)
     
    Timing belt and adjust the tension, then install the timing belt covers
     

  12.  
  13. Adjust the valve clearance.
  14.  
  15. Install or connect the following:

    Cylinder head cover, be sure that the seal and groove are thoroughly clean first
     
    Engine side mount, tighten the 2 new nuts and new bolt to the engine to 38 ft. lbs. (52 Nm) and tighten the bolt attaching the mount to the vehicle to 54 ft. lbs. (74 Nm)
     
    Distributor to the cylinder head and reconnect the spark plug wires to the spark plugs
     
    Intake air duct
     
    Strut brace, tighten the nuts to 17 ft. lbs. (24 Nm)
     
    Negative battery cable and enter the radio security code
     

  16.  
  17. Drain the engine oil. Wait at least 20 minutes before filling the engine with oil; the time delay allows the sealant to cure.

    Click image to see an enlarged view

    Fig. Camshaft holder plates torque sequence-1.8L (B18C1, B18C5) engines

  18.  

CL Models

NOTE
The radio may have a coded theft protection circuit. Obtain the code from the owner before disconnecting the battery, removing the radio fuse, or removing the radio.

  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Timing belt covers and cylinder head covers
     

  4.  
  5. Rotate the crankshaft to Top Dead Center (TDC) for the No. 1 piston and remove the timing belt.
  6.  
  7. Remove the camshaft sprockets.
  8.  
  9. Loosen the rocker shaft holder bolts 1 turn at a time in the reverse of the torque sequence to avoid damaging the valves, camshafts, or rocker assemblies.
  10.  
  11. After all bolts are loose, remove the rocker arm shafts as an assembly with the bolts still in the holders.

    Click image to see an enlarged view

    Fig. Camshaft and rocker arm assembly-CL model

  12.  
  13. If the rocker shafts are to be disassembled, note that each rocker arm has a letter A or B stamped into the side. Before disassembling the rocker arms, make a note of the position of each letter so that the arms can be reassembled in the same position.
  14.  
  15. Do not remove the hydraulic tappets from the rocker arms unless they are to be replaced. Handle the rocker arms carefully so the oil does not drain out of the tappets.
  16.  
  17. Lift the camshafts from the cylinder head, wipe them clean and inspect the lift ramps. Replace the camshafts and rockers if the lobes are pitted, scored, or excessively worn.
  18.  

To install:

  1. Place a new seal on the end of the camshaft, lubricate the journals and set the camshaft in place on the head.
    NOTE
    The pin hole in the front of the camshaft designates the top position.



    Click image to see an enlarged view

    Fig. Camshaft holder bolt tightening sequence-CL model

  2.  
  3. Apply liquid gasket to the mounting surfaces of the camshaft end holders.
  4.  
  5. Set the rocker arm assemblies in place and start all of the camshaft holder bolts. Be sure the rocker arms are properly positioned and turn each bolt in sequence 2 turns at a time until the holders are seated on the head to avoid damaging the valves or rocker assemblies.
  6.  
  7. When all the camshaft and rocker holders are seated, tighten the bolts in the same sequence. Tighten the 8mm bolts to 16 ft. lbs. (22 Nm) and the 6mm bolts to 104 inch lbs. (12 Nm).
  8.  
  9. Install or connect the following:

    Camshaft pulleys and tighten the bolts to 23 ft. lbs. (32 Nm)
     
    Timing belt and pour oil over the camshafts
     
    Cylinder head cover and reassemble accessory components
     

  10.  
  11. Verify that all electrical connections and vacuum lines are connected.
  12.  
  13. Reconnect the negative battery cable.
  14.  
  15. Run the engine and check for leaks and proper operation.
  16.  

1.8L (B18b1) Engines
1.8L (B18c1, B18c5) Engines
2.0L Engines
2.4L Engines
2001-03 TL Models
  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Timing belt covers and cylinder head covers
     

  4.  
  5. Rotate the crankshaft to Top Dead Center (TDC) for the No. 1 piston and remove the timing belt.
  6.  
  7. Remove the camshaft sprockets.
  8.  
  9. Loosen the rocker shaft holder bolts 1 turn at a time in the reverse of the torque sequence to avoid damaging the valves, camshafts, or rocker assemblies.
  10.  
  11. After all bolts are loose, remove the rocker arm shafts as an assembly with the bolts still in the holders.

    Click image to see an enlarged view

    Fig. Camshaft and rocker arm assembly-2001-03 3.2L engines

  12.  
  13. If the rocker shafts are to be disassembled, note that each rocker arm has a letter A or B stamped into the side. Before disassembling the rocker arms, make a note of the position of each letter so that the arms can be reassembled in the same position.
  14.  
  15. Do not remove the hydraulic tappets from the rocker arms unless they are to be replaced. Handle the rocker arms carefully so the oil does not drain out of the tappets.
  16.  
  17. Lift the camshafts from the cylinder head, wipe them clean and inspect the lift ramps. Replace the camshafts and rockers if the lobes are pitted, scored, or excessively worn.
  18.  

To install:

  1. Place a new seal on the end of the camshaft, lubricate the journals and set the camshaft in place on the head.
    NOTE
    The pin hole in the front of the camshaft designates the top position.



    Click image to see an enlarged view

    Fig. Camshaft holder bolt tightening sequence-2001-03 3.2L engine

  2.  
  3. Apply liquid gasket to the mounting surfaces of the camshaft end holders.
  4.  
  5. Set the rocker arm assemblies in place and start all of the camshaft holder bolts. Be sure the rocker arms are properly positioned and turn each bolt in sequence 2 turns at a time until the holders are seated on the head to avoid damaging the valves or rocker assemblies.
  6.  
  7. When all the camshaft and rocker holders are seated, tighten the bolts in the same sequence. Tighten the 8mm bolts to 16 ft. lbs. (22 Nm) and the 6mm bolts to 104 inch lbs. (12 Nm).
  8.  
  9. Install or connect the following:

    Camshaft pulleys and tighten the bolts to 23 ft. lbs. (32 Nm)
     
    Timing belt and pour oil over the camshafts
     
    Cylinder head cover and reassemble accessory components
     

  10.  
  11. Verify that all electrical connections and vacuum lines are connected.
  12.  
  13. Reconnect the negative battery cable.
  14.  
  15. Run the engine and check for leaks and proper operation.
  16.  

2001-04 RL Models
  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Timing belt covers and cylinder head covers
     

  4.  
  5. Rotate the crankshaft to Top Dead Center (TDC) for the No. 1 piston and remove the timing belt.
  6.  
  7. Remove the camshaft sprockets.
  8.  
  9. Loosen the rocker shaft holder bolts 1 turn at a time in the reverse of the torque sequence to avoid damaging the valves, camshafts, or rocker assemblies.
  10.  
  11. After all bolts are loose, remove the rocker arm shafts as an assembly with the bolts still in the holders.

    Click image to see an enlarged view

    Fig. Loosen the camshaft holder bolts in the specified sequence-2001-04 RL Models

  12.  
  13. If the rocker shafts are to be disassembled, note that each rocker arm has a letter A or B stamped into the side. Before disassembling the rocker arms, make a note of the position of each letter so that the arms can be reassembled in the same position.
  14.  
  15. Do not remove the hydraulic tappets from the rocker arms unless they are to be replaced. Handle the rocker arms carefully so the oil does not drain out of the tappets.
  16.  
  17. Lift the camshafts from the cylinder head, wipe them clean and inspect the lift ramps. Replace the camshafts and rockers if the lobes are pitted, scored, or excessively worn.
  18.  

To install:

  1. Place a new seal on the end of the camshaft, lubricate the journals and set the camshaft in place on the head.
    NOTE
    The pin hole in the front of the camshaft designates the top position.

  2.  
  3. Apply liquid gasket to the mounting surfaces of the camshaft end holders.
  4.  
  5. Set the rocker arm assemblies in place and start all of the camshaft holder bolts. Be sure the rocker arms are properly positioned and turn each bolt in sequence 2 turns at a time until the holders are seated on the head to avoid damaging the valves or rocker assemblies.
  6.  
  7. When all the camshaft and rocker holders are seated, tighten the bolts in the same sequence. Tighten the 8mm bolts to 16 ft. lbs. (22 Nm) and the 6mm bolts to 104 inch lbs. (12 Nm).
  8.  
  9. Install or connect the following:

    Camshaft pulleys and tighten the bolts to 23 ft. lbs. (32 Nm)

    Click image to see an enlarged view

    Fig. Tighten the camshaft holder bolts in the specified sequence-2001-04 RL Models

     
    Timing belt and pour oil over the camshafts
     
    Cylinder head cover and reassemble accessory components
     

  10.  
  11. Verify that all electrical connections and vacuum lines are connected.
  12.  
  13. Reconnect the negative battery cable.
  14.  
  15. Run the engine and check for leaks and proper operation.
  16.  

2004-06 TL Models
Front

NOTE
Make sure you have the anti-theft codes for the radio and the navigation system, then write down the radio channel presets. Make sure the ignition switch is OFF.

  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Remove the left side engine compartment cover.
  4.  
  5. Disconnect the negative cable from the battery first, then disconnect the positive cable.
  6.  
  7. Remove the battery.
  8.  
  9. Drain the engine coolant.
  10.  
  11. Remove the upper radiator hose.
  12.  
  13. Remove the Exhaust Gas Recirculation (EGR) valve.
  14.  
  15. Remove the timing belt.
  16.  
  17. Remove the rocker arm assembly.
  18.  
  19. Remove the front camshaft pulley.
  20.  
  21. Remove the thrust cover, then remove the front camshaft.
  22.  

To install:

Click image to see an enlarged view

Fig. Typical camshaft mounting-2004-06 TL and 2005-06 RL models

  1. Install the front camshaft in the reverse order of removal. Always use a new O-ring and apply new engine oil to the journals and camshaft lobes.
  2.  
  3. Tighten the camshaft thrust plate to 16 ft. lbs. (22 Nm).
  4.  
  5. Apply new engine oil to the threads of the camshaft pulley mounting bolt, then install the front camshaft pulley. Tighten the bolt to 67 ft. lbs. (90 Nm).
  6.  
  7. Install the rocker arm assembly.
  8.  
  9. Install the timing belt.
  10.  
  11. Adjust the valve clearance.
  12.  
  13. Install the battery.
  14.  
  15. Fill the radiator with engine coolant and bleed the air out.
  16.  
  17. Enter the anti-theft codes for the radio and the navigation system, then enter the customer's radio channel presets.
  18.  

Rear

NOTE
Make sure you have the anti-theft codes for the radio and the navigation system, then write down the radio channel presets. Make sure the ignition switch is OFF.

  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Relieve the fuel system pressure.
  4.  
  5. Disconnect the negative battery cable.
  6.  
  7. Remove the fuse/relay box from under the hood.
  8.  
  9. Drain the cooling system.
  10.  
  11. Remove the heater hose and two nuts retaining the fuel line.
  12.  
  13. Remove the timing belt.
  14.  
  15. Remove the rocker arm assembly.
  16.  
  17. Remove the rear camshaft pulley.
  18.  
  19. Remove the thrust cover, then remove the rear camshaft.
  20.  

To install:

  1. Install the rear camshaft in the reverse order of removal. Always use a new O-ring and apply new engine oil to the journals and camshaft lobes.
  2.  
  3. Tighten the camshaft thrust plate to 16 ft. lbs. (22 Nm).
  4.  
  5. Apply new engine oil to the threads of the camshaft pulley mounting bolt, then install the rear camshaft pulley. Tighten the bolt to 67 ft. lbs. (90 Nm).
  6.  
  7. Install the rocker arm assembly.
  8.  
  9. Install the timing belt.
  10.  
  11. Adjust the valve clearance.
  12.  
  13. Install the battery.
  14.  
  15. Fill the radiator with engine coolant and bleed the air out.
  16.  
  17. Enter the anti-theft codes for the radio and the navigation system, then enter the customer's radio channel presets.
  18.  

2005-06 RL Models
Front

NOTE
Make sure you have the anti-theft codes for the radio and the navigation system, then write down the radio channel presets. Make sure the ignition switch is OFF.

  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Remove battery trim and the left upper fender trim.
  4.  
  5. Disconnect the negative cable from the battery first, then disconnect the positive cable.
  6.  
  7. Remove the battery.
  8.  
  9. Drain the engine coolant.
  10.  
  11. Remove the radiator hoses.
  12.  
  13. Remove the Exhaust Gas Recirculation (EGR) valve.
  14.  
  15. Remove the timing belt.
  16.  
  17. Remove the rocker arm assembly.
  18.  
  19. Remove the front camshaft pulley.
  20.  
  21. Remove the thrust cover then remove the front camshaft.
  22.  

To install:

  1. Install the front camshaft in the reverse order of removal. Always use a new O-ring and apply new engine oil to the journals and camshaft lobes.
  2.  
  3. Tighten the camshaft thrust plate to 16 ft. lbs. (22 Nm).
  4.  
  5. Apply new engine oil to the threads of the camshaft pulley mounting bolt, then install the front camshaft pulley. Tighten the bolt to 67 ft. lbs. (90 Nm).
  6.  
  7. Install the rocker arm assembly.
  8.  
  9. Install the timing belt.
  10.  
  11. Adjust the valve clearance.
  12.  
  13. Install the battery.
  14.  
  15. Fill the radiator with engine coolant and bleed the air out.
  16.  
  17. Enter the anti-theft codes for the radio and the navigation system, then enter the customer's radio channel presets.
  18.  

Rear

NOTE
Make sure you have the anti-theft codes for the radio and the navigation system, then write down the radio channel presets. Make sure the ignition switch is OFF.

  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Relieve the fuel system pressure.
  4.  
  5. Disconnect the negative battery cable.
  6.  
  7. Drain the cooling system.
  8.  
  9. Remove the timing belt.
  10.  
  11. Remove the rocker arm assembly.
  12.  
  13. Remove the rear camshaft pulley.
  14.  
  15. Remove the rear camshaft pulley.
  16.  
  17. Remove the two nuts securing the purge joint.
  18.  
  19. Remove the thrust cover, then remove the rear camshaft.
  20.  

To install:

  1. Install the rear camshaft in the reverse order of removal. Always use a new O-ring and apply new engine oil to the journals and camshaft lobes.
  2.  
  3. Tighten the camshaft thrust plate to 16 ft. lbs. (22 Nm).
  4.  
  5. Apply new engine oil to the threads of the camshaft pulley mounting bolt, then install the rear camshaft pulley. Tighten the bolt to 67 ft. lbs. (90 Nm).
  6.  
  7. Install the rocker arm assembly.
  8.  
  9. Install the timing belt.
  10.  
  11. Adjust the valve clearance.
  12.  
  13. Install the battery.
  14.  
  15. Fill the radiator with engine coolant and bleed the air out.
  16.  
  17. Enter the anti-theft codes for the radio and the navigation system, then enter the customer's radio channel presets.
  18.  

3.0L Engine
3.2L & 3.5L Engines
NSX Models
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
     
    Timing belt
     
    Cylinder head
     
    Camshaft sprocket and rear cover
     
    Rocker arm/shaft assembly
     
    Camshaft thrust cover and O-ring
     

  4.  
  5. Pull out the camshaft.
  6.  

To install:

  1. Lubricate the camshaft with clean engine oil.
  2.  
  3. Slide the camshaft into position.
  4.  
  5. Install or connect the following:

    Thrust plate using a new O-ring, tighten the bolts to 16 ft. lbs. (22 Nm)
     
    Rocker arm/shaft assembly
     
    Cylinder head
     
    Rear cover and camshaft sprocket, tighten the bolt to 67 ft. lbs. (90 Nm)
     
    Timing belt
     

  6.  
  7. Adjust the valves.

    Click image to see an enlarged view

    Fig. Camshaft installation-3.0L engine

  8.  

3.2L 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
     
    Timing belt covers and cylinder head covers
     

  4.  
  5. Rotate the crankshaft to Top Dead Center (TDC) for the No. 1 piston and remove the timing belt.
  6.  
  7. Remove the camshaft sprockets.
  8.  
  9. Loosen the rocker shaft holder bolts 1 turn at a time in the reverse of the torque sequence to avoid damaging the valves, camshafts, or rocker assemblies.
  10.  
  11. After all bolts are loose, remove the rocker arm shafts as an assembly with the bolts still in the holders.

    Click image to see an enlarged view

    Fig. Camshaft and rocker arm assembly-3.2L engines

  12.  
  13. If the rocker shafts are to be disassembled, note that each rocker arm has a letter A or B stamped into the side. Before disassembling the rocker arms, make a note of the position of each letter so that the arms can be reassembled in the same position.
  14.  
  15. Do not remove the hydraulic tappets from the rocker arms unless they are to be replaced. Handle the rocker arms carefully so the oil does not drain out of the tappets.
  16.  
  17. Lift the camshafts from the cylinder head, wipe them clean and inspect the lift ramps. Replace the camshafts and rockers if the lobes are pitted, scored, or excessively worn.
  18.  

To install:

  1. Place a new seal on the end of the camshaft, lubricate the journals and set the camshaft in place on the head.
    NOTE
    The pin hole in the front of the camshaft designates the top position.



    Click image to see an enlarged view

    Fig. Camshaft holder bolt tightening sequence-3.2L engine

  2.  
  3. Apply liquid gasket to the mounting surfaces of the camshaft end holders.
  4.  
  5. Set the rocker arm assemblies in place and start all of the camshaft holder bolts. Be sure the rocker arms are properly positioned and turn each bolt in sequence 2 turns at a time until the holders are seated on the head to avoid damaging the valves or rocker assemblies.
  6.  
  7. When all the camshaft and rocker holders are seated, tighten the bolts in the same sequence. Tighten the 8mm bolts to 16 ft. lbs. (22 Nm) and the 6mm bolts to 104 inch lbs. (12 Nm).
  8.  
  9. Install or connect the following:

    Camshaft pulleys and tighten the bolts to 23 ft. lbs. (32 Nm)
     
    Timing belt and pour oil over the camshafts
     
    Cylinder head cover and reassemble accessory components
     

  10.  
  11. Verify that all electrical connections and vacuum lines are connected.
  12.  
  13. Reconnect the negative battery cable.
  14.  
  15. Run the engine and check for leaks and proper operation..
  16.  

RSX Models
  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
     
    Cylinder head from the vehicle
     
    Loosen the rocker arm adjusting screws
     
    Camshaft holder bolts, 2 turns at a time in a criss-cross pattern

    Click image to see an enlarged view

    Fig. Loosen the rocker arm adjusting screws (A)-2.0L engines



    Click image to see an enlarged view

    Fig. Camshaft holder bolt loosening sequence-2.0L engines

     
    Timing chain guide B, camshaft holders and camshafts
     

  4.  

To install:

  1. Make sure the punch marks on the VTC actuator and exhaust camshaft sprocket are facing up, then set the camshafts in the holder.
  2.  
  3. Set the camshaft holders and timing chain guide B in place.
  4.  
  5. Tighten the bolts, in sequence, to the following specifications:

    8mm bolts: 16 ft. lbs. (22 Nm)
     
    6mm bolts (nos. 21, 22 & 23): 104 inch lbs. (12 Nm)

    Click image to see an enlarged view

    Fig. Rocker arm assembly tightening sequence-2.0L engines

     

  6.  
  7. Install or connect the following:

    Timing chain, then adjust the valve clearance
     
    Cylinder head
     
    Negative battery cable
     

  8.  
  9. Check for proper engine and valve train operation.
  10.  

TSX Models
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Remove or disconnect the following:

    Timing chain
     
    Loosen the rocker arm adjusting screws
     
    Camshaft holder bolts, two turns at a time in sequence

    Click image to see an enlarged view

    Fig. Camshaft holder bolt loosening sequence-2.4L engine

     
    Timing chain guide (B), camshaft and camshafts
     

  6.  
  7. Insert the bolts (A) into the rocker shaft holder, then remove the rocker arm assembly (B)

    Camshafts by carefully lifting them out of the cylinder head

    Click image to see an enlarged view

    Fig. Insert the bolts (A) into the rocker shaft holder, then remove the rocker arm assembly (B)-2.4L engine



    Click image to see an enlarged view

    Fig. Exploded view of the rocker arms and related components-2.4L engine

     

  8.  

To install:

  1. Clean and dry the No. 5 rocker shaft holding mating surface.
  2.  
  3. Apply a suitable liquid gasket P/N 08718-0009, or equivalent, evenly to the cylinder head mating surface of the No. 5 rocker shaft holder.
    NOTE
    The parts must be installed within 5 minutes of applying the liquid gasket.

  4.  
  5. Reassemble the rocker arm assembly, as necessary.
  6.  
  7. Install or connect the following

    Bolts (A) into the rocker shaft holder, then the rocker arm assembly on the cylinder head. Remove the bolts from the rocker shaft holder.
     

  8.  
  9. Make sure the punch marks on the variable valve timing control (VTC) actuator and exhaust camshaft sprocket are facing up, then set the camshafts (A) in the holder

    Click image to see an enlarged view

    Fig. When installing the camshafts (A) make sure the punch marks on the VTC actuator and exhaust cam sprockets are facing up-2.4L engine

  10.  
  11. Set the camshaft holders (B) and timing chain guide B (C) in place.
  12.  
  13. Tighten the bolts, in sequence, to the following specification:
    1. 8mm bolts: 16 ft. lbs. (22 Nm)
    2.  
    3. 6mm bolts: 104 inch lbs. (12 Nm)

      Click image to see an enlarged view

      Fig. Rocker arm assembly bolt tightening sequence-2.4L engine

    4.  

  14.  
  15. Install the timing chain and adjust the valve lash.
  16.  

 
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