Mazda 323/MX-3/626/MX-6/Millenia/Protégé 1990-1998 and Ford Probe 1993-1997

Belts

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INSPECTION



See Figures 1, 2, 3, 4 and 5

Inspect the belts 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. It is best to replace all drive belts at one time, as a preventive maintenance measure, during this service operation.



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Fig. Fig. 1: There are typically 3 types of accessory drive belts found on vehicles today



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Fig. Fig. 2: An example of a healthy drive belt



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Fig. Fig. 3: Deep cracks in this belt will cause flex, building up heat that will eventually lead to belt failure



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Fig. Fig. 4: The cover of this belt is worn, exposing the critical reinforcing cords to excessive wear



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Fig. Fig. 5: Installing too wide a belt can result in serious belt wear and/or breakage

ADJUSTMENT



See Figures 6, 7, 8 and 9



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Fig. Fig. 6: Typical alternator mounting and drive belt adjustment points



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Fig. Fig. 7: Typical power steering and A/C compressor mounting and drive belt adjustment points



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Fig. Fig. 8: Single accessory drive belt adjustment points with idler pulley



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Fig. Fig. 9: Measure the belt deflection between two pulleys along the longest span

1990-94 1.6L and 1.8L 4-Cylinder Engines
ALTERNATOR BELT
  1. Position a ruler perpendicular to the drive belt midway between the pulleys on the longest accessible belt span. Press firmly on the belt with your thumb to test the belt tension. The belt should deflect 0.31-0.35 in. (8-9mm) if it is new or 0.35-0.39 in. (9-10mm) for a used belt.
  2.  
  3. If the belt tension is not as specified in Step 1, loosen the alternator adjustment bolt and the through bolt. Turn the alternator adjustment screw to adjust the belt tension.
  4.  
  5. After adjustment, tighten the through bolt to 27-38 ft. lbs. (37-52 Nm) and the adjusting bolt to 14-19 ft. lbs. (19-25 Nm).
  6.  

POWER STEERING AND AIR CONDITIONING BELT
  1. Position a ruler perpendicular to the drive belt midway between the pulleys on the longest accessible belt span. Press firmly on the belt with your thumb to test the belt tension. The belt should deflect 0.31-0.35 in. (8-9mm) if it is new or 0.35-0.39 in. (9-10mm) if it is used.
  2.  
  3. If the belt tension is not as specified in Step 1, loosen the upper and lower air conditioning compressor through bolts.
  4.  
  5. Using a suitable prybar against the compressor body, move the compressor until the belt tension is as specified in Step 1.
  6.  
  7. After adjustment, tighten the upper and lower air conditioning compressor through bolts.
  8.  

AIR CONDITIONING BELT
  1. Position a ruler perpendicular to the drive belt midway between the pulleys on the longest accessible belt span. Press firmly on the belt with your thumb to test the belt tension. The belt should deflect 0.31-0.35 in. (8-9mm) if it is new or 0.35-0.39 in. (9-10mm) if it is used.
  2.  
  3. If the belt tension is not as specified in Step 1, loosen the upper and lower air conditioning compressor through bolts.
  4.  
  5. Using a suitable prybar against the compressor body, move the compressor until the belt tension is as specified in Step 1.
  6.  
  7. After adjustment, tighten the upper and lower air conditioning compressor through bolts.
  8.  

1995 1.6L Engines
POWER STEERING

This belt includes the air conditioner compressor, if equipped.

  1. Turn the ignition OFF and remove the key. Allow the engine to cool.
  2.  
  3. Remove the power steering pump belt shield.
  4.  
  5. Without A/C, loosen the adjusting bolt, lockbolt, and through-bolt. With A/C, loosen the adjusting bolt and the locknut.
  6.  
  7. Remove the power steering belt.
  8.  

To install:
  1. Install the power steering belt and make sure it is correctly lined up on the pulley.
  2.  
  3. Adjust the power steering belt tension/deflection by turning the adjusting bolt. A new belt should deflect 0.32-0.35 inch (8-9mm), and a used belt should deflect 0.36-0.39 inch (9-10mm).
  4.  
  5. Without A/C, tighten the lockbolt to 24-33 ft. lbs. (32-46 Nm). Tighten the through-bolt to 14-18 ft. lbs. (19-25 Nm). With A/C, tighten the locknut to 24-25 ft. lbs. (32-34 Nm).
  6.  
  7. Install the belt shield and tighten the attaching bolts to 5-86 inch lbs. (7-9 Nm).
  8.  

ALTERNATOR
  1. Turn the ignition OFF and remove the key. Allow the engine to cool.
  2.  
  3. Remove the power steering belt.
  4.  
  5. Loosen the alternator adjusting bolt and upper mounting bolt.
  6.  
  7. Raise and safely support the vehicle.
  8.  
  9. Remove the right splash shield.
  10.  
  11. Loosen the lower through-bolt.
  12.  
  13. Lower the vehicle and remove the alternator belt.
  14.  

To install:
  1. Install the alternator belt and make sure it is correctly lined up on the pulley.
  2.  
  3. Adjust the alternator belt deflection by turning the adjusting bolt. A new belt should deflect 0.22-0.27 inch (6-7mm), and a used belt should deflect 0.24-0.29 inch (6-8mm).
  4.  
  5. Tighten the upper mounting bolt to 14-18 ft. lbs. (19-25 Nm).
  6.  
  7. Raise and safely support the vehicle.
  8.  
  9. Tighten the lower through-bolt to 28-38 ft. lbs. (38-51 Nm).
  10.  
  11. Install the right splash shield and tighten the bolts to 15-88 inch lbs. (8-10 Nm).
  12.  
  13. Lower the vehicle.
  14.  
  15. Install the power steering belt.
  16.  

1993-97 2.0L (FS) Engines
POWER STEERING AND A/C COMPRESSOR

See Figures 10, 11, 12, 13 and 14

This belt includes the air conditioner compressor, if equipped.

  1. Disconnect the negative battery cable.
  2.  



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Fig. Fig. 10: To remove the power steering/A/C compressor belt, first remove the belt shield attaching bolts (arrows) and shield



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Fig. Fig. 11: Next, loosen the power steering pump through or upper pivot bolt ...



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Fig. Fig. 12: ... and the adjuster lockbolt (arrow)



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Fig. Fig. 13: Loosen the adjuster bolt and relieve the tension from the drive belt



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Fig. Fig. 14: Remove the power steering/A/C compressor drive belt by disengaging it from all related engine pulleys

  1. Remove the power steering pump belt shield.
  2.  
  3. Loosen the through-bolt, lockbolt and adjusting bolt.
  4.  
  5. Remove the power steering belt.
  6.  

To install:
  1. Install the power steering belt and make sure it is correctly lined up on the pulley.
  2.  
  3. Adjust the power steering belt tension/deflection. A new belt should deflect 0.30-0.35 inch (8-9 mm), and a used belt should deflect 0.32-0.37 inch (8-10 mm).
  4.  
  5. Tighten the lockbolt to 24-34 ft. lbs. (32-46 Nm).
  6.  
  7. Tighten the through-bolt to 32-44 ft. lbs. (44-4 Nm).
  8.  
  9. Install the belt shield and tighten the attaching bolts to 5-86 inch lbs. (7-9 Nm).
  10.  
  11. Connect the negative battery cable.
  12.  

ALTERNATOR

See Figures 15, 16, 17 and 18

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the power steering belt.
  4.  



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Fig. Fig. 15: To remove the alternator belt, first remove the power steering belt, then loosen the lower alternator pivot bolt



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Fig. Fig. 16: Next loosen the adjuster lockbolt ...



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Fig. Fig. 17: ... then the adjuster bolt and relieve the tension from the alternator drive belt



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Fig. Fig. 18: Remove the alternator drive belt by disengaging it from all related engine pulleys

  1. Loosen the alternator adjusting bolt and upper mounting bolt.
  2.  
  3. Raise and safely support the vehicle.
  4.  
  5. Remove the RH splash shield.
  6.  
  7. Loosen the lower through-bolt.
  8.  
  9. Lower the vehicle and remove the alternator belt.
  10.  

To install:
  1. Install the alternator belt and make sure it is correctly lined up on the pulley.
  2.  
  3. Adjust the alternator belt tension/deflection by turning the adjusting bolt. A new belt should deflect 0.26-0.27 inch (6.5-7.0 mm), and a used belt should deflect 0.27-0.35 inch (7-9 mm).
  4.  
  5. Tighten the upper mounting bolt to 14-18 ft. lbs. (19-25 Nm).
  6.  
  7. Raise and safely support the vehicle.
  8.  
  9. Tighten the lower through-bolt to 28-38 ft. lbs. (38-51 Nm).
  10.  
  11. Install the RH splash shield and tighten the bolts to 15-88 inch lbs. (8-10 Nm).
  12.  
  13. Lower the vehicle.
  14.  
  15. Install the power steering belt.
  16.  
  17. Connect the negative battery cable.
  18.  

2.2L Engine
ALTERNATOR BELT
  1. Position a ruler perpendicular to the drive belt midway between the pulleys on the longest accessible belt span. Press firmly on the belt with your thumb to test the belt tension. The belt should deflect 0.24-0.31 in. (6-8mm) if it is new or 0.27-0.35 in. (7-9mm) if it is used.
  2.  
  3. If the belt tension is not as specified in Step 1, loosen the alternator adjustment bolt and the through bolt. Turn the alternator adjustment screw to adjust the belt tension.
  4.  
  5. After adjustment, tighten the through bolt to 27-38 ft. lbs. (37-52 Nm) and the adjusting bolt to 13-18 ft. lbs. (18-25 Nm).
  6.  

POWER STEERING AND AIR CONDITIONING BELT
  1. Position a ruler perpendicular to the drive belt midway between the pulleys on the longest accessible belt span. Press firmly on the belt with your thumb to test the belt tension. The belt should deflect 0.27-0.35 in. (7-9mm) if it is new or 0.31-0.39 in. (8-10mm) if it is used.
  2.  
  3. If the belt tension is not as specified in Step 1, loosen the upper and lower air conditioning compressor through bolts.
  4.  
  5. Using a suitable prybar against the compressor body, move the compressor until the belt tension is as specified in Step 1.
  6.  
  7. After adjustment, tighten the upper and lower air conditioning compressor through bolts.
  8.  

1.8L and 2.5L V6 Engines
ALTERNATOR AND POWER STEERING BELT
  1. Position a ruler perpendicular to the drive belt midway between the pulleys on the longest accessible belt span. Press firmly on the belt with your thumb to test the belt tension. The belt should deflect 0.24-0.28 in. (6-7mm) if it is new or 0.28-0.31 in. (7-8mm) if it is used.
  2.  
  3. If the belt tension is not as specified in Step 1, loosen the idler pulley locknut. Turn the alternator adjustment bolt to adjust the belt tension.
  4.  
  5. After adjustment, tighten the idler pulley locknut to 23-41 ft. lbs. (31-46 Nm).
  6.  

ALTERNATOR AND AIR CONDITIONING BELT
  1. Position a ruler perpendicular to the drive belt midway between the pulleys on the longest accessible belt span. Press firmly on the belt with your thumb to test the belt tension. The belt should deflect 0.22-0.26 in. (5.5-6.5mm) if it is new or 0.26-0.30 in. (6.5-7.5mm) if it is used.
  2.  
  3. If the belt tension is not as specified in Step 1, loosen the idler pulley locknut. Turn the adjustment bolt to adjust the belt tension.
  4.  
  5. After adjustment, tighten the idler pulley locknut to 23-34 ft. lbs. (31-46 Nm).
  6.  

1995-97 2.3L Engines
ALTERNATOR, A/C AND VACUUM PUMP

If the belt is to be reused, mark the direction of normal belt rotation.

  1. Switch the ignition OFF and remove the key. Allow the engine to cool.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Remove the right-hand splash shield and dust cover.
  6.  
  7. Using a wrench, turn the tensioner pulley locknut clockwise to remove tension on the belt.
  8.  
  9. Remove the belt from each of the pulleys, remove from the vehicle and inspect the belt.
  10.  

To install:
  1. Route the alternator belt around the pulleys.
  2.  
  3. Install the right-hand splash shield and dust cover.
  4.  
  5. Connect the negative battery cable.
  6.  

POWER STEERING, SUPERCHARGER AND WATER PUMP

If the belt is to be reused, mark the direction of normal belt rotation.

  1. Disconnect the negative battery cable.
  2.  
  3. Switch the ignition OFF and remove the key. Allow the engine to cool.
  4.  
  5. Remove the right-hand splash shield and dust cover.
  6.  
  7. Remove the alternator belt.
  8.  
  9. Using a wrench, turn the tensioner pulley locknut clockwise to remove tension on the belt.
  10.  
  11. Remove the belt from each of the pulleys, remove from the vehicle and inspect the belt.
  12.  

To install:
  1. Route the power steering drive belt around the pulleys.
  2.  
  3. Install the alternator belt.
  4.  
  5. Install the right-hand splash shield and dust cover.
  6.  
  7. Connect the negative battery cable.
  8.  

REMOVAL & INSTALLATION



When removing a belt from the engine, pay attention to its routing (over and under pulleys, etc.) before removing it. Drawing a quick picture may also help.

Follow the adjustment procedure to loosen the accessory drive belt. Once loose, simply remove the belt from the pulleys. If there is a belt in front of the one you need to remove, follow the adjustment procedures for that accessory as well.

 
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