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Front Suspension: Other Lexus SC II

Suspension Front 2 illustrations ~309 words

BALL JOINT ROTATION CHECKING

Inspect ball joints for wear. Move ball joint fully back and forth 5 times. Install nut and use torque wrench to rotate. Turn nut continuously at one turn every 2-4 seconds. Read torque on fifth turn. Replace ball joint if rotating torque exceeds specification or there is unusual resistance or looseness. See BALL JOINT ROTATING TORQUE SPECIFICATIONS table.

ApplicationINCH Lbs. (N.m)
Lower Ball Joint.9-26 (.1-3)
Stabilizer Bar Link Ball Joint.4-13 (.05-1.5)
Upper Ball Joint9-30 (1.0-3.4)

BALL JOINT ROTATING TORQUE SPECIFICATIONS

BEARING BACKLASH & AXLE HUB DEVIATION

  1. Using a dial indicator near center of axle hub, check backlash in bearing shaft direction. (Scheme 41) If backlash exceeds.0020 inches (.05 mm), replace bearing.
  2. Using a dial indicator, check deviation at the surface of axle hub outside hub bolt. (Scheme 41) If deviation exceeds.0020 inches (.05 mm), replace axle hub.

Scheme 41

Scheme 41
Scheme 41

LOWER BALL JOINT EXCESSIVE PLAY

  1. Remove tire and install lug nuts to disc.
  2. Using a dial indicator, check lower ball joint for excessive play when you push lug nuts up and down with a force of 66 ft.lbs. (294 N). Maximum play should be .016 inches (.4 mm). If not within specification, replace lower ball joint.

RIDE HEIGHT

  1. Measure front vehicle height from ground to center of lower control arm mounting bolt. (Scheme 42)
  2. Measure rear vehicle height from ground to center of lower control arm No. 2 mounting bolt. (Scheme 42)
  3. For standard vehicle height specification, see «STANDARD VEHICLE HEIGHT SPECIFICATION»(ref-156826-S11829534792003073000000) table.
  4. If vehicle height is not within specification, try to adjust by pushing down or lifting body.
Tire SizeFront In. (mm)Rear In. (mm)
245/40 ZR 189.13 (232)8.22 (209)

STANDARD VEHICLE HEIGHT SPECIFICATION

Scheme 42

Scheme 42
Scheme 42

AXLE HUB & BEARING

Note. Procedure is for left side. Right side is same.

LOWER BALL JOINT

Note. Procedure is for left side. Right side is same.

LOWER CONTROL ARM

Note. Procedure is for left side. Right side is same.

SHOCK ABSORBER WITH COIL SPRING

Note. Procedure is for left side. Right side is same.

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