Volvo Coupes/Sedans/Wagons 1970-1989 Repair Guide

Lower Control Arm

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REMOVAL & INSTALLATION



On all models, always fully install the control arm, bounce the suspension several times, and THEN tighten the control arm to crossmember mounting nuts or bolts.

1800 Series
  1. Loosen the wheel lugs, raise and support the front end and remove the wheels.
  2.  
  3. Remove the shock absorber.
  4.  
  5. Place a jack under the lower control arm at the spring. Raise the jack until the control arm rubber stop rises.
  6.  
  7. Disconnect the stabilizer bar from the lower control arm.
  8.  
  9. Remove the lower ball joint.
  10.  
  11. Slowly lower the jack and remove the spring when all tension is relieved.
  12.  


CAUTION
The spring is under considerable pressure. The use of a spring compressor or safety chain is advised.

  1. Disconnect the control arm from the cross shaft and remove.
  2.  

To install:
  1. Install the new arm on the cross shaft. Position the spring and raise the control arm into place.
  2.  
  3. Connect the lower ball joint and the stabilizer bar to the lower control arm.
  4.  
  5. Install the shock absorber.
  6.  
  7. Install the wheel, lower the car and tighten the wheel lugs.
  8.  

140 Series and 164 Models
  1. Loosen the wheel lugs, raise and support the car and remove the wheels.
  2.  
  3. Remove shock absorber.
  4.  
  5. Disconnect the tie rod from the steering arm with a separator tool.
  6.  
  7. Loosen the brake hose clamp and remove the stabilizer.
  8.  
  9. Place a jack under the lower control arm and support it.
  10.  
  11. Loosen the ball joint nuts and tap around the ball joints with a hammer until they loosen from the knuckle.
  12.  
  13. Remove the nuts, lower the jack slightly and remove the knuckle with the front brake unit. Suspend or position this assembly out of the way.
  14.  
  15. Lower the jack slowly and carefully and, when all tension is relieved, remove the spring.
  16.  


CAUTION
The spring is under considerable pressure. It is advisable to use a spring compressor or safety chain when removing the spring.

  1. Remove the control arm shaft nut, turn the relay rod with the tie rod (so that the control arm shaft is free) and remove the control arm shaft.
  2.  
  3. Remove the control arm.
  4.  

To install:
  1. Pay attention to the correct order of spacers, rings and washers on the shaft. Their order and placement is important. Install the control arm in place and tighten the nut to 95-110 ft. lbs. (130ndash;150 Nm).
  2.  
  3. Place the spring in position and elevate the arm with the jack.
  4.  
  5. Attach the steering knuckle and connect and tighten the ball joints.
  6.  
  7. Install the brake hose clamps. Connect the tie rod to the steering rod.
  8.  
  9. Reinstall the shock absorber.
  10.  
  11. Install the wheel, lower the car and tighten the lug nuts to 85-90 ft. lbs. (115-122 Nm).
  12.  

240 and 260 Series

See Figure 1

  1. Jack up the car, support on stands and remove the wheels.
  2.  
  3. Disconnect the stabilizer (sway bar) link at the control arm.
  4.  
  5. Remove the ball joint from the control arm. (Helpful tips can be found in "Lower Ball Joint Removal and Installation" in this section.)
  6.  
  7. Remove the control arm rear attachment plate.
  8.  



Click image to see an enlarged view

Fig. Fig. 1: Exploded view of the lower control arm and related fasteners-200 series

  1. Remove the control arm front retaining bolt.
  2.  
  3. Remove the control arm.
  4.  
  5. If bushings are to be replaced, note that the right and left bushings are not interchangeable. The right side bushing should be turned so that the small slots point horizontally when installed.
  6.  

To install:
  1. Install the bracket onto the control arm. The nut should be tightened only enough to hold securely. The washer should be able to be turned with your fingers after the nut is on.
  2.  
  3. Attach the control arm. Install the front retaining bolt and nut; tighten the nut only two or three turns onto the bolt.
  4.  
  5. Guide the stabilizer link into position. Attach it loosely with its nut and bolt.
  6.  
  7. Install the ball joint and its mount. Tighten the three mounting bolts to 75-95 ft. lbs. (102-129 Nm).
  8.  
  9. Install the rear bracket to the car. Tighten the three bolts to 25-35 ft. lbs. (34-47 Nm).
  10.  
  11. Tighten the stabilizer link.
  12.  
  13. Install the wheels and lower the car to the ground. Roll the car back and forth several times while bouncing the front end up and down. This "normalizes" the front suspension and allows the control arm to seek its final position.
  14.  
  15. Tighten the rear mount nut to 38-44 ft. lbs. (52-60 Nm). Tighten the front mount to 55 ft. lbs. (75 Nm).
  16.  

700 Series

See Figure 2

  1. Jack the car, support it on jackstands and remove the wheel.
  2.  
  3. Remove the cotter pin from the ball joint and remove the ball joint nut.
  4.  
  5. Disconnect the stabilizer (sway bar) link at the control arm.
  6.  
  7. Disconnect the strut bolt and remove the front bushing.
  8.  
  9. Use a ball joint puller and separate the ball joint from the control arm. Make sure the puller is properly located and that the rubber boot is not damaged during removal.
  10.  
  11. Unbolt the control arm at the crossmember and remove the arm.
  12.  

To install:
  1. If the bushings are to be replaced, use a press and support the arm from below. The new bushings should always be pressed in from the front side of the arm.
  2.  



Click image to see an enlarged view

Fig. Fig. 2: Exploded view of the lower control arm and related fasteners-700 series

  1. Fit the control arm over the end of the strut rod. Install the arm in the crossmember but do not fully tighten the nut.
  2.  
  3. Install the ball joint in the control arm. Tighten the nut to 44 ft. lbs. (60 Nm). Install a new cotter pin.
  4.  
  5. Install the bushing, washer and bolt for the strut rod. tighten the bolt to 70 ft. lbs. (95 Nm).
  6.  
  7. Attach the stabilizer link to the control arm and tighten it to 63 ft. lbs. (85 Nm).
  8.  
  9. Install the wheels and lower the car to the ground. Roll the car back and forth several times while bouncing the front end up and down. This "normalizes" the front suspension and allows the control arm to seek its final position.
  10.  
  11. Tighten the control arm-to-crossmember bolt to 63 ft. lbs. (85 Nm). Tighten the wheel lugs evenly to 63 ft. lbs. (85 Nm).
  12.  

 
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