Volvo 240/740/760/780/940/960 1990-1998

Lower Ball Joint

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INSPECTION



Check the ball joint axial play. Maximum axial play permitted is 0.12 inch (3mm). Check the radial play. Maximum radial play permitted is 0.02 inch (0.5mm).

REMOVAL & INSTALLATION



240 Series
  1. Raise the vehicle and support it safely.
  2.  
  3. Mark the position of the wheel stud nearest to the valve. Wheel is marked to facilitate installation and to avoid the need for rebalancing.
  4.  
  5. Remove the wheel and tire assembly.
  6.  
  7. Remove the ball joint nut from the knuckle.
  8.  
  9. Remove the 4 bolts which retains the ball joint and remove the ball joint from the control arm.
  10.  
  11. Remove the ball joint retaining nut and press the ball joint out of attachment.
  12.  

To install:

Ball joints are different for right and left sides. It is therefore important that the correct ball joint is installed on the correct side.

  1. Press the ball joint to the attachment, and install the ball joint on the control arm and tighten the bolts to 44 ft. lbs. (60 Nm).
  2.  
  3. Install the ball joint to the knuckle and tighten to 85 ft. lbs. (115 Nm).
  4.  
  5. Install the wheel on the hub assembly, while aligning the marking made earlier. Alternately tighten the nuts to specifications.
  6.  
  7. Lower the vehicle.
  8.  

700, 900, S90 and V90 Series

See Figure 1

  1. Raise the vehicle and support it safely.
  2.  
  3. Mark the position of the wheel stud nearest to the valve. Wheel is marked to facilitate installation and to avoid the need for rebalancing.
  4.  
  5. Remove the wheel and tire assembly.
  6.  
  7. Remove the bolt which holds the anti-roll bar link to the control arm.
  8.  
  9. Remove the cotter pin, nut and washer for the ball joint stud.
  10.  
  11. Pull the control arm from the ball joint using a suitable puller (5259 or equivalent).
  12.  
  13. Remove the bolts holding the ball joint to the spring strut.
  14.  
  15. Press the control arm downwards and remove the ball joint.
  16.  

To install:
  1. Install the new ball joint.
  2.  
  3. Use new bolts and apply sealing fluid to the threads. Check that the bolt heads sit flat on the ball joint. Tighten the bolts to 22 ft. lbs. (30 Nm) PLUS angle tighten 90 degrees.
  4.  
  5. Install the control arm to ball joint.
  6.  
  7. Install the washer and nut.
  8.  
  9. Tighten ball joint stud (nut) to 44 ft. lbs. (60 Nm).
  10.  
  11. Install the cotter pin.
  12.  
  13. Install the anti-roll bar.
  14.  
  15. Install the wheel.
  16.  
  17. Lower the vehicle.
  18.  



Click image to see an enlarged view

Fig. Fig. 1: Ball joint assembly -900 series vehicles

850, C70, S70 and V70 Series
  1. Raise and safely support the vehicle.
  2.  
  3. Remove the wheel.
  4.  
  5. Remove the three nuts holding the ball joint to the lower control arm.
  6.  
  7. Remove the clamping bolt and nut from the steering knuckle where the ball joint is mounted.
  8.  
  9. Spread the ball joint apart and remove it from the hub housing.
  10.  

To install:
  1. Clean the control arm and steering knuckle where the new ball joint is fitted.
  2.  
  3. Install the new ball joint with the clamping bolt and nut. Tighten the bolt to 37 ft. lbs. (50 Nm).
  4.  
  5. Connect the ball joint to the lower control arm and fasten it with new nuts. Apply rustproofing compound to the nuts. Starting from inside, working outward, tighten the nuts to 13 ft. lbs. (18 Nm) and then angle tighten 120°.
  6.  
  7. Install the wheel.
  8.  
  9. Lower the car.
  10.  

 
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