Honda Prelude Accord Civic S2000 2001-2006

Valve Lash

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Adjustment



Accord
2.3L Engine

NOTE
Adjust valves only when the cylinder head temperature is less than 100 degrees F.

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section. Disconnect the negative battery cable.
  2.  
  3. Note the radio security code and the radio presets.
  4.  
  5. Remove the cylinder head cover retaining bolts. Remove the cylinder head cover from the engine.
  6.  
  7. Set the number one piston at TDC. The UP mark on the camshaft pulley should be at the top, and the TDC marks on the pulley should line up with the top edge of the cylinder head.
  8.  
  9. Using the proper gauge feeler gauge, adjust the valves on cylinder number one.
  10.  
  11. Rotate the crankshaft 180 degrees counterclockwise. The UP mark on the camshaft pulley should be toward the exhaust side of the cylinder head.
  12.  
  13. Using the proper gauge feeler gauge, adjust the valves on cylinder number three.
  14.  
  15. Rotate the crankshaft 180 degrees counterclockwise and bring the number four piston to TDC.
  16.  
  17. Using the proper gauge feeler gauge, adjust the valves on cylinder number four.
  18.  
  19. Rotate the crankshaft 180 degrees counterclockwise. The UP mark on the camshaft pulley should be toward the intake side of the cylinder head.
  20.  
  21. Using the proper gauge feeler gauge, adjust the valves on cylinder number two.
  22.  
  23. Install the cylinder head cover.
  24.  

2.4L Engine

NOTE
Adjust valves only when the cylinder head temperature is less than 100 degrees F.

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section. Disconnect the negative battery cable.
  2.  
  3. Note the radio security code and the radio presets.
  4.  
  5. Remove the cylinder head cover retaining bolts. Remove the cylinder head cover from the engine.
  6.  
  7. Set the number one piston at TDC. The punch mark on the variable timing control (VTC) actuator and the punch mark on the exhaust camshaft sprocket should be at the top. Align the TDC marks on the VTC actuator and exhaust camshaft sprocket.
  8.  
  9. Using the proper gauge feeler gauge, adjust the valves on cylinder number one.
  10.  
  11. Rotate the crankshaft 180 degrees. Using the proper gauge feeler gauge, adjust the valves on cylinder number three.
  12.  
  13. Rotate the crankshaft 180 degrees. Using the proper gauge feeler gauge, adjust the valves on cylinder number four.
  14.  
  15. Rotate the crankshaft 180 degrees. Using the proper gauge feeler gauge, adjust the valves on cylinder number two.
  16.  
  17. Install the cylinder head cover.
  18.  
  19. As required, reprogram the power window control unit as follows.
  20.  
  21. Turn the ignition switch ON. Lower the window, all the way down. Open the driver-s side door.
  22.  
  23. Turn the ignition switch OFF. Push and hold the drivers window DOWN switch. Turn the ignition switch ON. Release the driver-s window DOWN switch. This must be done within five seconds.
  24.  
  25. Repeat the above step three more times. Wait one second.
  26.  
  27. Confirm that the AUTO UP and AUTO DOWN do not work. If they work repeat the procedure, paying close attention to the five second time limit
  28.  
  29. Move the driver-s window all the way down by holding the drivers window DOWN switch to the AUTO DOWN position.
  30.  
  31. Pull up and hold the driver-s window UP switch to the AUTO UP position until the window reaches the fully closed position. Hold the switch for one second.
  32.  
  33. Confirm that the power window master switch has been reset by using the driver-s window AUTO UP and DOWN function.
  34.  
  35. If the AUTO UP and DOWN feature is still not working, repeat the complete procedure, paying close attention to the five second time limit.
  36.  
  37. Set the clock.
  38.  

3.0L Engine

NOTE
Adjust valves only when the cylinder head temperature is less than 100 degrees F.

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section. Disconnect the negative battery cable.
  2.  
  3. Note the radio security code and the radio presets.
  4.  
  5. Remove the cylinder head cover retaining bolts. Remove the cylinder head cover from the engine.
  6.  
  7. Set the number one piston at TDC. Align the pointer on the front of the upper cover with the number one piston TDC mark on the front camshaft pulley.
  8.  
  9. Using the proper gauge feeler gauge, adjust the valves on cylinder number one.
  10.  
  11. Rotate the crankshaft clockwise. Align the pointer on the front of the upper cover with the number four piston TDC mark on the front camshaft pulley.
  12.  
  13. Using the proper gauge feeler gauge, adjust the valves on cylinder number four.
  14.  
  15. Rotate the crankshaft clockwise. Align the pointer on the front of the upper cover with the number two piston TDC mark on the front camshaft pulley.
  16.  
  17. Using the proper gauge feeler gauge, adjust the valves on cylinder number two.
  18.  
  19. Rotate the crankshaft clockwise. Align the pointer on the front of the upper cover with the number five piston TDC mark on the front camshaft pulley.
  20.  
  21. Using the proper gauge feeler gauge, adjust the valves on cylinder number five.
  22.  
  23. Rotate the crankshaft clockwise. Align the pointer on the front of the upper cover with the number three piston TDC mark on the front camshaft pulley.
  24.  
  25. Using the proper gauge feeler gauge, adjust the valves on cylinder number three.
  26.  
  27. Rotate the crankshaft clockwise. Align the pointer on the front of the upper cover with the number six piston TDC mark on the front camshaft pulley.
  28.  
  29. Using the proper gauge feeler gauge, adjust the valves on cylinder number six.
  30.  
  31. Install the cylinder head cover.
  32.  
  33. As required, reprogram the crankshaft position (CKP) pattern. Run the engine until the operating temperature reaches 176 degree. With the engine stopped clear the CKP pattern. Turn the ignition switch OFF. Turn the ignition switch ON and wait thirty seconds.
  34.  
  35. Road test the vehicle on a level surface. Decelerate the engine speed of 2500 rpm to 1000 rpm. If equipped with automatic transaxle use two Drive positions. If equipped with manual transaxle use first gear.
  36.  
  37. Stop the vehicle, but keep the engine running.
  38.  
  39. Check PULSAR F/B LEARN in the data list with the HDS. If not complete repeat the procedure. If complete, road test the vehicle on a level surface. Decelerate the engine speed of 5000 rpm to 3000 rpm. If equipped with automatic transaxle use two Drive positions. If equipped with manual transaxle use first gear.
  40.  
  41. Stop the vehicle, but keep the engine running.
  42.  
  43. Check PULSAR F/B LEARN in the data list with the HDS. If not complete repeat the procedure.
  44.  
  45. If completed, turn the ignition switch OFF. Turn the ignition switch ON, wait thirty seconds. The learning procedure is now complete.
  46.  
  47. Enter the antitheft codes for the radio and the navigation system. Set the clock.
  48.  
  49. As required, reprogram the power window control unit as follows.
  50.  
  51. Turn the ignition switch ON. Lower the window, all the way down. Open the driver-s side door.
  52.  
  53. Turn the ignition switch OFF. Push and hold the drivers window DOWN switch. Turn the ignition switch ON. Release the driver-s window DOWN switch. This must be done within five seconds.
  54.  
  55. Repeat the above step three more times. Wait one second.
  56.  
  57. Confirm that the AUTO UP and AUTO DOWN do not work. If they work repeat the procedure, paying close attention to the five second time limit
  58.  
  59. Move the driver-s window all the way down by holding the drivers window DOWN switch to the AUTO DOWN position.
  60.  
  61. Pull up and hold the driver-s window UP switch to the AUTO UP position until the window reaches the fully closed position. Hold the switch for one second.
  62.  
  63. Confirm that the power window master switch has been reset by using the driver-s window AUTO UP and DOWN function.
  64.  
  65. If the AUTO UP and DOWN feature is still not working, repeat the complete procedure, paying close attention to the five second time limit.
  66.  
  67. Set the clock.
  68.  

Civic
1.7L Engine

NOTE
Adjust valves only when the cylinder head temperature is less than 100 degrees F.

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section. Disconnect the negative battery cable.
  2.  
  3. Note the radio security code and the radio presets.
  4.  
  5. Remove the ignition coil cover. Remove the ignition coils. Remove the throttle cable clamps and harness holder from the cylinder head cover.
  6.  
  7. Remove the cylinder head cover retaining bolts. Remove the cylinder head cover from the engine.
  8.  
  9. Remove the grommet from the upper cover and disconnect the camshaft position (CMO) sensor connector. Remove the upper cover.
  10.  
  11. Set the number one piston at TDC. The UP mark on the camshaft pulley should be at the top, and the TDC marks on the pulley should line up with the top edge of the cylinder head.
  12.  
  13. Using the proper gauge feeler gauge, adjust the valves on cylinder number one.
  14.  
  15. Rotate the crankshaft 180 degrees counterclockwise. The UP mark on the camshaft pulley should be toward the exhaust side of the cylinder head.
  16.  
  17. Using the proper gauge feeler gauge, adjust the valves on cylinder number three.
  18.  
  19. Rotate the crankshaft 180 degrees counterclockwise and bring the number four piston to TDC.
  20.  
  21. Using the proper gauge feeler gauge, adjust the valves on cylinder number four.
  22.  
  23. Rotate the crankshaft 180 degrees counterclockwise. The UP mark on the camshaft pulley should be toward the intake side of the cylinder head.
  24.  
  25. Using the proper gauge feeler gauge, adjust the valves on cylinder number two.
  26.  
  27. Install the cylinder head cover.
  28.  
  29. As required, reprogram the ECM/PCM engine idle characteristics. Be sure all electrical items are OFF.
  30.  
  31. Start the engine. Hold the idle speed at 3000 RPM-s in park or neutral until the radiator fan comes on or the temperature reached 194 degrees.
  32.  
  33. Let the engine idle for about five minutes with the throttle fully closed.
  34.  
  35. If the radiator fan comes on during the five minutes, do not count this toward the five minute programming time.
  36.  
  37. Set the clock.
  38.  

1.8L Engine

NOTE
Adjust valves only when the cylinder head temperature is less than 100 degrees F.

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section. Disconnect the negative battery cable.
  2.  
  3. Note the radio security code and the radio presets.
  4.  
  5. Remove the cylinder head cover retaining bolts. Remove the cylinder head cover from the engine.
  6.  
  7. Set the number one piston at TDC. The UP mark on the camshaft sprocket should be at the top, and the TDC grooves on the camshaft sprocket should line up with the top edge of the cylinder head.
  8.  
  9. Using the proper gauge feeler gauge, adjust the valves on cylinder number one.
  10.  
  11. Rotate the crankshaft clockwise. Align the number three piston TDC groove on the camshaft sprocket with the top edge of the cylinder head.
  12.  
  13. Using the proper gauge feeler gauge, adjust the valves on cylinder number three.
  14.  
  15. Rotate the crankshaft clockwise. Align the number four piston TDC groove on the camshaft sprocket with the top edge of the cylinder head.
  16.  
  17. Using the proper gauge feeler gauge, adjust the valves on cylinder number four.
  18.  
  19. Rotate the crankshaft clockwise. Align the number two piston TDC groove on the camshaft sprocket with the top edge of the cylinder head.
  20.  
  21. Using the proper gauge feeler gauge, adjust the valves on cylinder number two.
  22.  
  23. Install the cylinder head cover.
  24.  
  25. Reset the maintenance minder light.
  26.  
  27. As required, reprogram the power window control unit as follows.
  28.  
  29. Turn the ignition switch ON. Lower the window, all the way down. Open the driver-s side door.
  30.  
  31. Turn the ignition switch OFF. Push and hold the drivers window DOWN switch. Turn the ignition switch ON. Release the driver-s window DOWN switch. This must be done within five seconds.
  32.  
  33. Repeat the above step three more times. Wait one second.
  34.  
  35. Confirm that the AUTO UP and AUTO DOWN do not work. If they work repeat the procedure, paying close attention to the five second time limit
  36.  
  37. Move the driver-s window all the way down by holding the drivers window DOWN switch to the AUTO DOWN position.
  38.  
  39. Pull up and hold the driver-s window UP switch to the AUTO UP position until the window reaches the fully closed position. Hold the switch for one second.
  40.  
  41. Confirm that the power window master switch has been reset by using the driver-s window AUTO UP and DOWN function.
  42.  
  43. If the AUTO UP and DOWN feature is still not working, repeat the complete procedure, paying close attention to the five second time limit.
  44.  
  45. Set the clock.
  46.  

2.0L Engine

NOTE
Adjust valves only when the cylinder head temperature is less than 100 degrees F.

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section. Disconnect the negative battery cable.
  2.  
  3. Note the radio security code and the radio presets.
  4.  
  5. Remove the cylinder head cover retaining bolts. Remove the cylinder head cover from the engine.
  6.  
  7. Set the number one piston at TDC. The punch mark on the variable timing control (VTC) actuator and the punch mark on the exhaust camshaft sprocket should be at the top. Align the TDC marks on the VTC actuator and exhaust camshaft sprocket.
  8.  
  9. Using the proper gauge feeler gauge, adjust the valves on cylinder number one.
  10.  
  11. Rotate the crankshaft 180 degrees. Using the proper gauge feeler gauge, adjust the valves on cylinder number three.
  12.  
  13. Rotate the crankshaft 180 degrees. Using the proper gauge feeler gauge, adjust the valves on cylinder number four.
  14.  
  15. Rotate the crankshaft 180 degrees. Using the proper gauge feeler gauge, adjust the valves on cylinder number two.
  16.  
  17. Install the cylinder head cover.
  18.  
  19. As required, on 2001-05 vehicles, reprogram the ECM engine idle characteristics. Be sure all electrical items are OFF.
  20.  
  21. Start the engine. Hold the idle speed at 3000 RPM-s in neutral until the radiator fan comes on or the temperature reached 194 degrees.
  22.  
  23. Let the engine idle for about five minutes with the throttle fully closed.
  24.  
  25. If the radiator fan comes on during the five minutes, do not count this toward the five minute programming time.
  26.  
  27. Set the clock.
  28.  
  29. As required, reprogram the power window control unit as follows.
  30.  
  31. Turn the ignition switch ON. Lower the window, all the way down. Open the driver-s side door.
  32.  
  33. Turn the ignition switch OFF. Push and hold the drivers window DOWN switch. Turn the ignition switch ON. Release the driver-s window DOWN switch. This must be done within five seconds.
  34.  
  35. Repeat the above step three more times. Wait one second.
  36.  
  37. Confirm that the AUTO UP and AUTO DOWN do not work. If they work repeat the procedure, paying close attention to the five second time limit
  38.  
  39. Move the driver-s window all the way down by holding the drivers window DOWN switch to the AUTO DOWN position.
  40.  
  41. Pull up and hold the driver-s window UP switch to the AUTO UP position until the window reaches the fully closed position. Hold the switch for one second.
  42.  
  43. Confirm that the power window master switch has been reset by using the driver-s window AUTO UP and DOWN function.
  44.  
  45. If the AUTO UP and DOWN feature is still not working, repeat the complete procedure, paying close attention to the five second time limit.
  46.  

Prelude

NOTE
The valve clearance should be adjusted when the engine is cold, the cylinder head temperature should be less than 100°F (38°C).


NOTE
The radio may contain a coded theft protection circuit. Always obtain the code number before disconnecting the battery.

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Remove or disconnect the following:
    NOTE
    Label the wires before disconnecting them.



    Negative battery cable
     



    Spark plug wires from the spark plugs
     
    Positive Crankcase Ventilation (PCV) hose
     
    Cylinder head cover. Replace the rubber seals if damaged or deteriorated.
     

  4.  
  5. Turn the engine to align the timing marks and set cylinder No.1 to TDC. The white mark on the crankshaft pulley should align with the pointer on the timing belt cover. The words UP embossed on the camshaft pulley should be aligned in the upward position. The marks on the edge of the pulley should be aligned with the cylinder head or the back cover upper edge.
  6.  
  7. Adjust the valves on cylinder No. 1 by performing the following:
    1. Insert a feeler gauge in between the camshaft lobe and the rocker arm.
      NOTE
      The intake valve clearance specification is 0.009-0.011 in (0.24-0.28mm) for 2001-02 vehicles or 0.008-0.010 in. (0.21-0.25mm) for 2003-04 vehicles. The exhaust valve clearance specification is 0.011-0.013 in. (0.27-0.32mm).

    2.  
    3. Loosen the locknut and turn the adjusting screw until the feeler gauge slides back and forth with a slight amount of drag.
    4.  
    5. Tighten the locknut to 14 ft. lbs. (20 Nm) for intake or 10 ft. lbs. (14 Nm) for exhaust and recheck the valve clearance. Repeat the valve adjustment if necessary.
    6.  

  8.  
  9. Rotate the crankshaft 180° counterclockwise (the camshaft pulleys will turn 90°) The UP arrow marks should be pointing to the exhaust side of the cylinder head.
  10.  
  11. Adjust the valves on cylinder No. 3 by performing the following:
    1. Insert a feeler gauge in between the camshaft lobe and the rocker arm.
    2.  
    3. Loosen the locknut and turn the adjusting screw until the feeler gauge slides back and forth with a slight amount of drag.
    4.  
    5. Tighten the locknut to 14 ft. lbs. (20 Nm) for intake or 10 ft. lbs. (14 Nm) for exhaust and recheck the valve clearance. Repeat the valve adjustment if necessary.
    6.  

  12.  
  13. Rotate the crankshaft 180° counterclockwise (the camshaft pulleys will turn 90°) to bring No. 4 piston to TDC. The UP arrow marks should be pointing down, toward the crankshaft.
  14.  
  15. Adjust the valves on cylinder No. 4 by performing the following:
    1. Insert a feeler gauge in between the camshaft lobe and the rocker arm.
    2.  
    3. Loosen the locknut and turn the adjusting screw until the feeler gauge slides back and forth with a slight amount of drag.
    4.  
    5. Tighten the locknut to 14 ft. lbs. (20 Nm) for intake or 10 ft. lbs. (14 Nm) for exhaust and recheck the valve clearance. Repeat the valve adjustment if necessary.
    6.  

  16.  
  17. Rotate the crankshaft 180° counterclockwise (the camshaft pulleys will turn 90°) to bring piston No. 2 to TDC. The UP arrow marks should be pointing to the intake side of the cylinder head.
  18.  
  19. Adjust the valves on cylinder No. 2 by performing the following:
    1. Insert a feeler gauge in between the camshaft lobe and the rocker arm.
    2.  
    3. Loosen the locknut and turn the adjusting screw until the feeler gauge slides back and forth with a slight amount of drag.
    4.  
    5. Tighten the locknut to 14 ft. lbs. (20 Nm) and recheck the valve clearance. Repeat the valve adjustment if necessary.
    6.  

  20.  
  21. Install the cylinder head cover gasket cover to the groove of the cylinder head cover. Before installing the gasket, thoroughly clean the seal and the groove. Seat the recesses for the camshaft first, then work it into the groove around the outside edges. Be sure the gasket is seated securely in the corners of the recesses.
  22.  
  23. Apply liquid gasket to the 4 corners of the recesses of the cylinder head cover gasket. Do not install the parts if 5 minutes or more have elapsed since applying liquid gasket. After assembly, wait at least 20 minutes before filling the engine with oil.
  24.  
  25. Install or connect the following:

    Cylinder head (valve) cover. Tighten the bolts attaching to 84 inch lbs. (10 Nm).
     
    Spark plug wires to the correct spark plugs.
     
    Positive, then the negative battery cable and enter the radio security code.
     

  26.  
  27. If equipped with 4WS, start the engine and turn the steering wheel lock-to-lock to reset the 4WS control unit.

    Click image to see an enlarged view

    Fig. Valve clearance adjusting screw locations

  28.  

S2000
2.0L & 2.2L Engines

NOTE
Adjust valves only when the cylinder head temperature is less than 100 degrees F.

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section. Disconnect the negative battery cable.
  2.  
  3. Note the radio security code and the radio presets.
  4.  
  5. Remove the cylinder head cover retaining bolts. Remove the cylinder head cover from the engine.
  6.  
  7. Set the number one piston at TDC. The TDC marks on the cam chain sprocket should align with the cylinder head surface.
  8.  
  9. Using the proper gauge feeler gauge, adjust the valves on cylinder number one.
  10.  
  11. Rotate the crankshaft 180 degrees. Using the proper gauge feeler gauge, adjust the valves on cylinder number three.
  12.  
  13. Rotate the crankshaft 180 degrees. Using the proper gauge feeler gauge, adjust the valves on cylinder number four.
  14.  
  15. Rotate the crankshaft 180 degrees. Using the proper gauge feeler gauge, adjust the valves on cylinder number two.
  16.  
  17. Install the cylinder head cover.
  18.  
  19. As required, on 2001-05 vehicles, reprogram the ECM engine idle characteristics. Be sure all electrical items are OFF.
  20.  
  21. Start the engine. Hold the idle speed at 3000 RPM-s in neutral until the radiator fan comes on or the temperature reached 176 degrees.
  22.  
  23. Let the engine idle for about five minutes with the throttle fully closed.
  24.  
  25. If the radiator fan comes on during the five minutes, do not count this toward the five minute programming time.
  26.  
  27. Set the clock.
  28.  
  29. As required, reprogram the power window control unit as follows.
  30.  
  31. Turn the ignition switch ON. Lower the window, all the way down. Open the driver-s side door.
  32.  
  33. Turn the ignition switch OFF. Push and hold the drivers window DOWN switch. Turn the ignition switch ON. Release the driver-s window DOWN switch. This must be done within five seconds.
  34.  
  35. Repeat the above step three more times. Wait one second.
  36.  
  37. Confirm that the AUTO UP and AUTO DOWN do not work. If they work repeat the procedure, paying close attention to the five second time limit
  38.  
  39. Move the driver-s window all the way down by holding the drivers window DOWN switch to the AUTO DOWN position.
  40.  
  41. Pull up and hold the driver-s window UP switch to the AUTO UP position until the window reaches the fully closed position. Hold the switch for one second.
  42.  
  43. Confirm that the power window master switch has been reset by using the driver-s window AUTO UP and DOWN function.
  44.  
  45. If the AUTO UP and DOWN feature is still not working, repeat the complete procedure, paying close attention to the five second time limit.
  46.  

 
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