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Home >> Mazda >> 2005 >> B4000 SE, Automatic >> Repair and Diagnosis >> Drivelines & Axles >> Driveshaft & Universal Joints >> Propeller Shaft >> Propeller Shaft RUNOUT And Balance

Propeller Shaft RUNOUT And Balance

  1. Use a twin post axle contact hoist to raise and support the vehicle. See LIFTING .
  2. Remove the rear wheels and tires. See WHEEL AND TIRE REMOVAL/INSTALLATION . Install the lug nuts to retain the brake drums.
    CAUTION:
    • To prevent overheating, do not run the vehicle on the hoist for an extended period.
  3. Note and record baseline speed.
    1. With the transmission in gear, increase vehicle speed to the maximum vibration level. Note and record the speed of this vibration period as a baseline speed.
  4. Check the attachment of the propeller shaft to the rear companion flange. Replace any worn parts.
    Fig 1: Checking Attachment Of Propeller Shaft To Rear Companion Flange
    G03729931Courtesy of MAZDA MOTORS CORP.
    WARNING:
    • Keep hands away from the balance weights while the propeller shaft is rotating.
  5. Check the propeller shaft for out of balance.
    1. With the transmission in gear, run the vehicle with the propeller shaft rotating 64-80 km/h (40-50 mph).
    2. Have an assistant barely contact the propeller shaft with a marker in the rear, middle, and front end to indicate heavy spots.
  6. Balance the propeller shaft.
    1. Install two stainless steel screw-type hose clamps on the propeller shaft with the clamp screws opposite the mark.
    2. Tighten the hose clamps starting at the pinion yoke end of the propeller shaft.
      Fig 2: Balancing Propeller Shaft
      G03729932Courtesy of MAZDA MOTORS CORP.
  7. Run the vehicle at baseline speed.
  8. If vibration is still evident, rotate the clamps away from each other until balanced and test.
    Fig 3: Rotating Clamps Away From Each Other Until Balanced
    G03729933Courtesy of MAZDA MOTORS CORP.
  9. If necessary, continue to rotate the clamps apart in smaller increments and test. If vibration still exists, repeat the procedure at the front of the propeller shaft.
  10. Install the tire and wheel assembly. See WHEEL AND TIRE REMOVAL/INSTALLATION .
  11. Road test the vehicle.
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