Subaru Car 1998-05

Accessory Drive Belts

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Adjustment



2.0L & 2.5L Engines

The belt tension may be check with or without a belt tension gauge.

  1. If using a belt tension gauge, the tension should be as follows:
    1. Used front belt: 110.2-143.9 lbs. (490-640 N)
    2.  
    3. New front belt: 143-175 lbs. (640-780 N)
    4.  
    5. Used rear belt: 78.7-101.2 lbs. (350-450 N)
    6.  
    7. New rear belt: 166-198 lbs. (740-880 N)
    8.  

  2.  
  3. If you are not using a belt tension gauge, using 22 lbs. (98 Nm) of force, push on the belt as shown in the illustration. The total distance the belt travels up and down should be:
    1. Used front belt: 0.354-0.433 in. (9-11 mm)
    2.  
    3. New front belt: 0.276-0.354 in. (7-9 mm)
    4.  
    5. Used rear belt: 0.354-0.394 in. (9.0-10.0 mm)
    6.  
    7. New rear belt: 0.295-0.335 in. (7.5-8.5 mm)

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      Fig. Location to check the belt tension if you are using a belt tension gauge-2.5L engine (1998-2005)



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      Fig. Location to check to the belt tension if you are not using a belt tension gauge-2.5L engine (1998-2005)

    8.  

  4.  

3.0L Engine
  1. With the belt installed, check that the automatic belt tension indicator is within the range.
  2.  
  3. Replace the belt if the indicator is outside of the service limit.

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    Fig. Automatic belt tension indicator-3.0L Engine (1998-2005)

  4.  

Front Side Belt


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Fig. Loosen the retaining and bracket bolt, and move the alternator to adjust the belt tension-1.8L engine (1997)



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Fig. Use a suitable prytool to tension the belt while tightening the bolt-typical (1997)

  1. Loosen the alternator mounting bolts.
  2.  
  3. Move the alternator to increase the tension, or decrease to reduce the belt tension.
  4.  
  5. Tighten the alternator mounting bolts.
  6.  



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Fig. Loosen and remove the belt cover retainer bolts-2.5L and 3.3L engines (1997)



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Fig. Lift the belt cover off and place aside-2.5L and 3.3L engines (1997)



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Fig. Loosen the belt adjuster bolt-2.5L and 3.3L engines (1997)



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Fig. Loosen the adjuster bolt's lower clamp retainer bolt-2.5L and 3.3L engines (1997)



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Fig. Remove the belts from the pulleys-2.5L and 3.3L engines (1997)

  1. Remove the drive belt cover over the belt by removing the retaining bolts at both ends of the bracket.
  2.  
  3. Loosen the locknut and adjust the slider bolt to obtain the correct belt tension.
  4.  
  5. Tighten the locknut.
  6.  
  7. When complete, install the drive belt cover.
  8.  

Rear Side Belt


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Fig. Loosen the lockbolt below the belt and next to the pulley, then adjust the idler pulley to correct the belt tension-Impreza (1997)

  1. Loosen the bolt and special nut securing the idler pulley.
  2.  
  3. Tighten or loosen the idler pulley to obtain the correct belt tension.
  4.  
  5. Tighten the bolt and special nut.
  6.  



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Fig. Loosen the locknut and lockbolt, and rotate the pulley to adjust the belt tension-Legacy and SVX (1997)

  1. Loosen both the lockbolt and locknut on the slider bracket.
  2.  
  3. Adjust the slider pulley forward or backwards to obtain the correct belt tension.
  4.  
  5. Tighten the lockbolt.
  6.  

Drive Belt Routings





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Fig. Accessory drive belt routing-2.2L and 2.5L engines



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Fig. Accessory drive belt routing-2.2L and 2.5L engines



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Fig. Accessory drive belt routing 1.8L engine



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Fig. Accessory drive belt routing-2.0L, 2.2L and 2.5L engines



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Fig. Accessory drive belt routing-3.0L engine

Inspection



Inspect the drive belt for signs of glazing or cracking. A glazed belt will be perfectly smooth from slippage, while a good belt will have a slight texture of fabric visible. Cracks will usually start at the inner edge of the belt and run outward. All worn or damaged drive belts should be replaced immediately.

Removal & Installation



1.8 Engine
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Remove the necessary components in order to gain access to the drive belt(s).
  6.  
  7. Using the proper removal tools, remove the drive belt(s).
  8.  

To install:


NOTE
Wipe off any oil or water on the belt and pulley.

  1. Installation is the reverse of the removal procedure.
  2.  
  3. Reinstall any components removed for clearance.
  4.  
  5. Connect the negative battery cable.
  6.  

2.0L, 2.2L & 2.5L Engines
  1. Remove the accessory drive belt cover, if equipped.
  2.  
  3. Loosen the lock bolt (bottom) of the front belt tensioner.
  4.  
  5. Loosen the slider bolt (top) of the front belt tensioner.
  6.  
  7. Remove the front side belt.
  8.  
  9. Loosen the lock bolt (bottom) of the rear belt tensioner.
  10.  
  11. Loosen the slider bolt (top) of the rear belt tensioner.
  12.  
  13. Remove the rear side belt.
  14.  

To install:


NOTE
Wipe off any oil or water on the belt and pulley.

  1. Install the rear side belt, then tighten the slider bolt until the belt reaches the specified tension. Please refer to the following topic: -Accessory Drive Belts-, -Adjustment.-
  2.  
  3. Tighten the lock nut of the rear belt tensioner to 18 ft. lbs. (25 Nm).
  4.  
  5. Install the front side belt, then tighten the slider bolt until the belt reaches the specified tension. Please refer to the following topic: -Accessory Drive Belts-, -Adjustment.-
  6.  
  7. Tighten the lock nut of the front belt tensioner to 17 ft. lbs. (23 Nm).
  8.  

3.0L Engines
  1. Remove the accessory drive belt cover, if equipped.
  2.  
  3. Rotate the belt tensioner clockwise to loosen the belt tension.
  4.  
  5. Remove the accessory drive belt.
  6.  
  7. Installation is the reverse order of removal.
  8.  

3.3 Engine

The manufacturer does not provide service information related to this topic.

 
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