Honda Prelude Accord Civic S2000 2001-2006

Timing Belt, Sprockets, Front Cover & Seal

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Removal & Installation



1.7L Engine
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Note the radio security code and the radio presets. Disconnect the negative battery cable.
  4.  
  5. Rotate the crankshaft to set the engine at Top Dead Center (TDC) on the compression stroke for the No. 1 piston. The white mark on the crankshaft pulley should align with the pointers on the timing cover. Once the engine is in this position, it must not be disturbed.
  6.  
  7. Raise and support the vehicle safely. Remove the front tires. Remove the splash shield. Lower the vehicle.
  8.  
  9. Remove the power steering pump and position it to the side without disconnecting the hoses. Remove the alternator.
  10.  
  11. Remove the ignition coil cover. Remove the four ignition coils. Remove the throttle cable clamps and harness holder mounting bolts. Remove the cylinder head cover. Remove the crankshaft pulley.
  12.  
  13. Properly support the engine using a block of wood under the oil pan. Remove the upper bracket.
  14.  
  15. Remove the grommet from the upper cover. Disconnect the camshaft position (CMP) top dead center (TDC) sensor connector.
  16.  
  17. Remove the side engine mount bracket.
  18.  
  19. Remove the crankshaft position (CKP) sensor from the oil pump, without disconnecting the connector.
  20.  
  21. Apply slight force to the timing belt at the midpoint between the camshaft pulley and the water pump pulley and check that the auto tensioner moves smoothly, if not replace it.
  22.  
  23. Move the auto tensioner to remove tension from the timing belt. Remove the timing belt.
  24.  

To install:

Click image to see an enlarged view

Fig. TDC alignment mark locations for the crankshaft sprocket-1.7L engine



Click image to see an enlarged view

Fig. Timing belt sprocket TDC mark positioning for timing belt installation-1.7L engine

  1. Set the crankshaft to TDC. Align the TDC mark on the timing belt drive pulley with the pointer on the oil pump.
  2.  
  3. Set the camshaft to TDC. The UP mark on the camshaft pulley should be at the top. Align the TDC marks on the camshaft pulley with the top edge of the cylinder head.
  4.  
  5. Install the timing belt in a counterclockwise sequence, starting with the drive pulley.
  6.  
  7. As required, replace the auto tensioner assembly.
  8.  
  9. Continue the installation in the reverse order of the removal procedure.
  10.  
  11. Reprogram the ECM/PCM engine idle characteristics. Be sure all electrical items are OFF.
  12.  
  13. 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.
  14.  
  15. Let the engine idle for about five minutes with the throttle fully closed.
  16.  
  17. If the radiator fan comes on during the five minutes, do not count this toward the five minute programming time.
  18.  
  19. Set the clock.
  20.  

2.2L & 2.3L Engines
Except S2000 with 2.2L Engine
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Remove the cylinder head (valve) and upper timing belt covers.
  4.  
  5. Turn the engine to align the timing marks and set cylinder No. 1 to Top Dead Center (TDC). The white mark on the crankshaft sprocket should align with the pointer on the timing belt cover. The words UP embossed on the camshaft sprocket should be aligned in the upward position. The marks on the edge of the sprocket should be aligned with the cylinder head or the back cover upper edge. Once in this position, the engine must NOT be turned or disturbed.
  6.  
  7. Remove all necessary components for access to the lower timing belt cover, then remove the cover.
  8.  
  9. There are two belts in this system; the one running to the camshaft sprocket is the timing belt. The other, shorter one drives the balance shaft and is referred to as the balancer shaft belt or timing balancer belt. Lock the timing belt adjuster in position, by installing one of the lower timing belt cover bolts to the adjuster arm.
  10.  
  11. Loosen the timing belt and balancer shafts tensioner adjuster nut, do not loosen the nut more than one turn. Push the tensioner for the balancer belt away from the belt to relieve the tension. Hold the tensioner and tighten the adjusting nut to hold the tensioner in place.
  12.  
  13. Carefully remove the balancer belt. Do not crimp or bend the belt; protect it from contact with oil or coolant.
  14.  
  15. Remove the balancer belt sprocket from the crankshaft.
  16.  
  17. Loosen the lockbolt installed to the timing belt adjuster and loosen the adjusting nut. Push the timing belt adjuster to remove the tension on the timing belt, then tighten the adjuster nut.
  18.  
  19. Remove the timing belt by sliding it off the sprockets. Do not crimp or bend the belt; protect it from contact with oil or coolant.
  20.  
  21. If defective, remove the belt tensioners by performing the following:
    1. Remove the springs from the balancer belt and the timing belt tensioners.
    2.  
    3. Remove the adjusting nut from the belt tensioners.
    4.  
    5. Remove the bolt from the balancer belt adjuster lever, and then remove the lever and the tensioner pulley.
    6.  
    7. Remove the lockbolt from the timing belt tensioner lever, then remove the tensioner pulley and lever from the engine.
    8.  

  22.  
  23. This is an excellent time to check or replace the water pump. Even if the timing belt is only being replaced as part of a good maintenance schedule, consider replacing the pump at the same time.

    Click image to see an enlarged view

    Fig. Position the camshaft sprocket as indicated for timing belt installation-Honda 2.2L and 2.3L engines



    Click image to see an enlarged view

    Fig. Before installing the timing belt, ensure the crankshaft sprocket marks are properly aligned-Honda 2.2L and 2.3L engines

  24.  

To install:

  1. If the water pump is to be replaced, install a new O-ring and make certain it is properly seated. Install the water pump and tighten the mounting bolts to 106 inch lbs. (12 Nm).
  2.  
  3. If the tensioners were removed, perform the following procedures:
    1. Install the timing belt tensioner lever and the tensioner pulley.
    2.  
    3. Install the balancer belt pulley and adjuster lever.
    4.  
    5. Install the adjusting nut and the bolt to the balancer belt adjuster lever.
    6.  
    7. Install the springs to the tensioners.
    8.  
    9. Install the lockbolt to the timing belt tensioner, then move it its full deflection and tighten the lockbolt.
    10.  
    11. Move the balancer it's full deflection and tighten the adjusting nut to hold its position.
    12.  

  4.  
  5. The pointer on the crankshaft sprocket should be aligned with the pointer on the oil pump; the camshaft sprocket must be aligned so that the word UP is at the top of the sprocket and the marks on the edge of the sprocket are aligned with the surfaces of the head or the back cover upper edge.
  6.  
  7. Install the timing belt on the sprockets in the following sequence: crankshaft sprocket, tensioner sprocket, water pump sprocket and camshaft sprocket.
  8.  
  9. Check the timing marks to be sure that they did not move.
  10.  
  11. Loosen, then retighten the timing belt adjusting nut; this will apply the proper amount of tension to the timing belt.
  12.  
  13. Install the timing balancer belt drive sprocket and the lower timing belt cover.
  14.  
  15. Install the crankshaft pulley and bolt, tighten the bolt to 181 ft. lbs. (245 Nm). Rotate the crankshaft sprocket 5-6 turns to position the timing belt on the sprockets.
  16.  
  17. Set the No. 1 cylinder to TDC and loosen the timing belt adjusting nut one turn. Turn the crankshaft counterclockwise until the cam sprocket has moved 3 teeth; this creates tension on the timing belt.
  18.  
  19. Tighten the timing belt adjusting nut.
  20.  
  21. Set the crankshaft sprocket and the camshaft sprocket to TDC. If the sprockets do not align, remove the belt to realign the marks, then install the belt.
  22.  
  23. Remove the crankshaft pulley and the lower cover.
  24.  
  25. With the timing marks aligned, lock the timing belt adjuster in place with one of the lower cover mounting bolts.
  26.  
  27. Loosen the adjusting nut and ensure the timing balancer belt adjuster moves freely.
  28.  
  29. Align the rear timing balancer sprocket using a 6 x 100mm bolt or rod. Mark the bolt or rod at a point 2.9 in. (74mm) from the end. Remove the bolt from the maintenance hole on the side of the block; insert the bolt/rod into the hole and align the 2.9 in. (74mm) mark with the face of the hole. This will hold the shaft in place during installation.
  30.  
  31. Align the groove on the front balancer shaft sprocket with the pointer on the oil pump.
  32.  
  33. Install the balancer belt. Once the belts are in place, be sure that all the engine alignment marks are still correct. If not, remove the belts, realign the engine and reinstall the belts. Once the belts are properly installed, slowly loosen the adjusting nut, allowing the tensioner to move against the belt. Remove the bolt from the maintenance hole and reinstall the bolt and washer.
  34.  
  35. Install the crankshaft pulley, then turn the crankshaft sprocket 1 turn counterclockwise and tighten the timing belt adjusting nut to 33 ft. lbs. (45 Nm).
  36.  
  37. Remove the crankshaft pulley and the bolt locking the timing belt adjuster in place.
  38.  
  39. Install the lower and upper timing belt covers, and all applicable components. When installing the crankshaft pulley, coat the threads and seating face of the pulley bolt with engine oil, then install and tighten the bolt to 181 ft. lbs. (250 Nm).
  40.  
  41. 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.
  42.  
  43. Apply liquid gasket to the four 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.
  44.  
  45. Install the cylinder head (valve) cover and all other applicable components.
  46.  

3.0L Engine
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Note the radio security code and the radio presets. Disconnect the negative battery cable.
  4.  
  5. Turn the crankshaft so that its white mark lines up with the pointer. Check to insure that number one piston is at TDC. Be sure that the mark on the front camshaft pulley and the pointer on the front upper cover are aligned.
  6.  
  7. Raise and support the vehicle safely. Remove the front tires. Remove the splash shield.
  8.  
  9. Remove the drive belt. Remove the drive belt auto tensioner.
  10.  
  11. Properly support the engine using a block of wood under the oil pan. Remove the ground cable. Remove the side engine mount bracket.
  12.  
  13. Remove the front upper cover. Remove the rear upper cover.
  14.  
  15. Remove the crankshaft pulley. Remove the lower cover.
  16.  
  17. Using the proper size bolt, screw it into the timing belt adjuster. Tighten by hand, do not use a wrench.

    Click image to see an enlarged view

    Fig. Timing belt adjuster bolt and installation location-3.0L engine

  18.  
  19. Remove the engine mount bracket.
  20.  
  21. Remove the idler pulley bolt and idler pulley. Remove the timing belt.
  22.  

To install:

Click image to see an enlarged view

Fig. Crankshaft timing belt sprocket alignment mark locations-3.0L engine



Click image to see an enlarged view

Fig. Left camshaft timing belt sprocket alignment mark location-3.0L engine



Click image to see an enlarged view

Fig. Rear camshaft timing belt sprocket alignment mark location-3.0L engine

  1. Set the timing belt drive pulley to TDC by aligning the TDC mark on the tooth of the timing belt drive pulley with the pointer on the oil pump.
  2.  
  3. Set the camshaft pulleys to TDC by aligning the TDC marks on the camshaft pulleys with the pointers on the back covers.
  4.  
  5. Remove the auto tensioner. Align the holes on the rod and housing of the tensioner.
  6.  
  7. Using a hydraulic press to slowly compress the auto tensioner, insert a 0.08 inch pin through the housing and the rod.
  8.  
  9. Install the auto tensioner. Be sure that the pin stays in place.
  10.  
  11. By hand, screw down on the timing belt adjuster bolt to hold the timing belt adjuster.
  12.  
  13. Install the timing belt in a counterclockwise sequence starting with the drive pulley.
  14.  
  15. Remove the pin from the auto tensioner. Remove the bolt from the timing belt adjuster.
  16.  
  17. Continue the installation in the reverse order of the removal procedure.
  18.  
  19. 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.
  20.  
  21. 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.
  22.  
  23. Stop the vehicle, but keep the engine running.
  24.  
  25. 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.
  26.  
  27. Stop the vehicle, but keep the engine running.
  28.  
  29. Check PULSAR F/B LEARN in the data list with the HDS. If not complete repeat the procedure.
  30.  
  31. If completed, turn the ignition switch OFF. Turn the ignition switch ON, wait thirty seconds. The learning procedure is now complete.
  32.  
  33. As required, reprogram the power window control unit as follows.
  34.  
  35. Turn the ignition switch ON. Lower the window, all the way down. Open the driver-s side door.
  36.  
  37. 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.
  38.  
  39. Repeat the above step three more times. Wait one second.
  40.  
  41. 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
  42.  
  43. Move the driver-s window all the way down by holding the drivers window DOWN switch to the AUTO DOWN position.
  44.  
  45. 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.
  46.  
  47. Confirm that the power window master switch has been reset by using the driver-s window AUTO UP and DOWN function.
  48.  
  49. If the AUTO UP and DOWN feature is still not working, repeat the complete procedure, paying close attention to the five second time limit.
  50.  
  51. Set the clock.
  52.  

 
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