Honda Pilot - 2003-2005

Accessory Drive Belts

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Accessory Belt Routing





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Fig. Alternator-A/C compressor belt routing and related components-2003-04 models



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Fig. Power steering pump belt routing (shown with belt tension gauge attached)-2003-04 models



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Fig. Serpentine belt routing and related components-2005 models

Adjustment



2003-04 Models
Alternator-A/C Compressor Belt

Belt tension is maintained by an automatic tensioner. No adjustments are necessary or possible.

Power Steering Pump Belt
  1. Loosen the power steering pump mounting nut (A) and bolt (B).
  2.  
  3. Turn the adjusting nut (C) to get the proper belt tension, then retighten the mounting nut and bolt.
  4.  
  5. Start the engine and turn the steering wheel from lock-to-lock several times, then stop the engine and recheck the tension of the belt.

    Click image to see an enlarged view

    Fig. Loosen the power steering pump mounting nut (A) and bolt (B). Turn the adjusting nut (C) to get the proper belt tension, then retighten the mounting nut and bolt

  6.  

2005 Models

Belt tension is maintained by an automatic tensioner. No adjustments are necessary or possible.

Inspection



2003-04 Models
Alternator-A/C Compressor Belt
  1. Inspect the belt for cracks and damage. If the belt is cracked or damaged, replace it.
  2.  
  3. Check that the pointer (A) on auto-tensioner housing is not beyond the edge of the indicator rib (B) on the tensioner base. If pointer is beyond the indicator rib, the alternator-compressor belt must be replaced.

    Click image to see an enlarged view

    Fig. Check that the pointer (A) on auto-tensioner housing is not beyond the edge of the indicator rib (B) on the tensioner base. If pointer is beyond the indicator rib, the alternator-compressor belt must be replaced

  4.  

Power Steering Pump Belt

NOTE
There are two ways to inspect the belt tension: the Belt Tension Gauge Method and the Deflection Method. Both are outlined below.

Belt Tension Gauge Method

  1. Attach the belt tension gauge to the belt with the gauge face toward the engine, and measure the tension of the belt. Follow the manufacture's instructions. If the belt is worn or damaged, replace it.
    NOTE
    Remove the belt tension gauge carefully to avoid hitting the gauge reset lever.

  2.  
  3. The tension should be:
    1. Used Belt: 88-120 lbs. (390-540 N)
    2.  
    3. New Belt: 170-200 lbs. (740-880 N)
    4.  

  4.  
  5. If you installed a new belt, run the engine for 5 minutes, then readjust the belt to the used belt specifications.

    Click image to see an enlarged view

    Fig. Using a belt tension gauge to inspect the power steering pump belt tension

  6.  

Deflection Method

  1. Apply a force of 22 lbs. (98 N) and measure the deflection between the power steering pump pulley (A) and the crankshaft pulley (B).
  2.  
  3. The deflection should be:
    1. Used Belt: 0.51-0.65 in. (13.0-16.5mm)
    2.  
    3. New Belt: 0.33-0.43 in. (8.5-11.0mm)
    4.  

  4.  
  5. If you installed a new belt, run the engine for 5 minutes, then readjust the belt to the used belt specifications

    Click image to see an enlarged view

    Fig. Apply a force of 22 lbs. then measure the deflection between the power steering pump pulley (A) and the crankshaft pulley (B)

  6.  

2005 Models
  1. Inspect the belt for cracks and damaged. If the belt is cracked or damaged, replace it.
  2.  
  3. Check that the auto-tensioner indicator (A) is within the standard range (B) as shown. If it is out of the standard range, replace the drive belt.

    Click image to see an enlarged view

    Fig. Check that the auto-tensioner indicator (A) is within the standard range (B) as shown-2005 models

  4.  

Removal & Installation



2003-04 Models
Alternator-A/C Compressor Belt
  1. Move the auto-tensioner (A) to relieve tension from the alternator-compressor belt (B), and remove the belt.
  2.  
  3. Install the new belt in the reverse order of removal.

    Click image to see an enlarged view

    Fig. Move the auto-tensioner (A) to relieve tension from the alternator-compressor belt (B), and remove the belt-2003-04 models

  4.  

Power Steering Pump Belt

The power steering pump has two fasteners securing it to a bracket mounted on the engine. The right side locknut and fastener are installed through a slotted bracket and the left side fastener allows the pump to pivot.

  1. Note the radio security code and disconnect the negative battery cable.
  2.  
  3. Loosen the right side locknut and left side pivot nut.
  4.  
  5. Move the pump by turning the adjustment nut on the right side bracket. Turn the adjustment nut counterclockwise to release the belt tension.
  6.  
  7. Remove the belt from the pulleys, one pulley at a time.
  8.  

To install:

  1. Install the belt around the pulleys, beginning with the largest pulley first.
  2.  
  3. Follow the adjustment procedure to correctly tension the belt.
  4.  
  5. Tighten the right side locknut and left side pivot bolt and then check the belt tension. If the belt tension is not within specification, repeat the adjustment procedure until the proper belt tension is achieved.
  6.  
  7. Reconnect the negative battery cable and enter the radio security code.
  8.  

2005 Models
  1. Rotate auto-tensioner (A), as shown in the accompanying figure, to release tension from the drive belt (B), then remove the drive belt.
  2.  
  3. Install the new belt in the reverse order of removal.

    Click image to see an enlarged view

    Fig. Rotate the auto-tensioner (A) to release tension from the belt (B), then remove the belt-2005 models

  4.  

 
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