Mazda RX7 Drive Belt Routing and Adjustment: specifications and more

Mazda RX7 1993-1995 FD3S

ADJUSTMENT

Ensure drive belts are not worn, cracked or frayed and are correctly mounted on pulleys. See Fig. 1 . If a new belt is used, adjust belt deflection at midpoint of new belt specification.

Fig. 1: Identifying Correct Belt Mounting

ALTERNATOR

Loosen alternator bolts and adjust belt deflection by turning adjusting bolt. See Fig. 2 and Fig. 4 . Tighten bolts to specification.

Fig. 2: Adjusting Alternator Belt

AC COMPRESSOR/POWER STEERING PUMP

Loosen locknut and adjust belt deflection by turning adjusting bolt. See Fig. 3 and Fig. 4 . Tighten bolts to specification.

Fig. 3: Adjusting AC Compressor/Power Steering Pump Belt

DRIVE BELT ROUTING

Fig. 4: Identifying Drive Belt Routing and Deflection Points

ADJUSTMENT SPECIFICATIONS

Check belt deflection when engine is cold, or has bin off for 30 minutes.

DEFLECTION SPECIFICATIONS

• New Belt: Used on for less than 5 minutes.
  • Alternator: 0.24-0.27 (6-7) In. (mm)
  • AC Compressor/Power Steering Pump: 0.14-0.15 (3.5-4) In. (mm)
• Used Belt
  • Alternator: 0.27-0.29 (7-7.5) In. (mm)
  • AC Compressor/Power Steering Pump: 0.18-0.19 (4.5-5) In. (mm)
• Wear Limit
  • Alternator: 0.35 (9) In. (mm)
  • AC Compressor/Power Steering Pump: 0.24 In. (mm),

TENSION SPECIFICATIONS

• New Belt: Used on for less than 5 minutes.
  • Alternator: 160-170 (70-80) Lbs. (kg)
  • AC Compressor/Power Steering Pump: 170-190 (75-90) Lbs. (kg)
• Used Belt
  • Alternator: 140-150 (60-70) Lbs. (kg)
  • AC Compressor/Power Steering Pump: 130-140 (55-65) Lbs. (kg)
• Wear Limit
  • Alternator: 73 (33) Lbs. (kg)
  • AC Compressor/Power Steering Pump: 73 (33) Lbs. (kg)

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TORQUE SPECIFICATIONS

• Alternator Adjusting Bolt
  • "A": 28-38 (38-51)
  • "B": 14-18 (19-25)
• AC Compressor/Power Steering Pump Locknut: 27-39 (37-53)

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Mazda RX-7 1993-1995 FD3S

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