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Front Wheel Alignment: Inspection

  1. MEASURE VEHICLE HEIGHT 

    Vehicle height: 

    HEIGHT SPECIFICATION

    Front (1) 192.4 mm (7.57 in.)
    Rear (2) 266 mm (10.47 in.)
    (1) Front measuring point Measure the distance from the ground to the center of the frontside lower suspension arm mounting bolt.
    (2) Rear measuring point Measure the distance from the ground to the center of the frontside strut rod mounting bolt.
    NOTE: Before inspecting the wheel alignment, adjust the vehicle height to the specified value.

    If the vehicle height is not the specified value, try to adjust it by pushing down on or lifting the body.

    Fig 1: Measuring Distance From Ground To Center Of Strut Rod Mounting Bolt (Front And Rear)
    G02837344Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSTALL CAMBER-CASTER-KINGPIN GAUGE OR POSITION VEHICLE ON WHEEL ALIGNMENT TESTER 

    Follow the specific instructions of the equipment manufacturer.

  3. INSPECT CAMBER, CASTER AND STEERING AXIS INCLINATION 

    Camber caster and steering axis inclination: 

    Fig 2: Installing Camber-Caster-Kingpin Gauge Or Position Vehicle On Wheel Alignment Tester
    G02837345Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    If the caster and steering axis inclination are not within the specified values, after the camber has been correctly adjusted, re-check the suspension parts for damaged and/or worn out parts.

  4. ADJUST CAMBER NOTICE: 
    NOTE: After the camber has been adjusted, inspect the toe-in.
    1. Remove the front wheel.
      Fig 3: Inspecting Camber, Caster And Steering Axis Inclination Chart
      G02837346Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 2 nuts on the lower side of the shock absorber.
    3. Coat the threads of the nuts with engine oil.
    4. Temporarily install the 2 nuts.
      Fig 4: Removing 2 Nuts On Lower Side Of Shock Absorber
      G02837347Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Adjust the camber by pushing or pulling the lower side of the shock absorber in the direction in which the camber adjustment is required.
    6. Tighten the nuts.

      Torque: 140 N.m (1,430 kgf.cm, 103 ft.lbf) 

    7. Install the front wheel.

      Torque: 103 N.m (1,050 kgf.cm, 76 ft.lbf) 

    8. Check the camber.

      HINT:

      • Try to adjust the camber to the center of the specified value.
      • Adjusting value for the set bolts is 6' - 30' (0.1 ° - 0.5°).

      If the camber is not within the specified value, using the following table, estimate how much additional camber adjustment will be required, and select the camber adjusting bolt.

      NOTE: Tighten the adjusting bolt with a washer and a new nut.
      Fig 5: Adjusting Camber By Tightening Bolt
      G02837348Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 6: Adjusting Bolt Specification Table
      G02837349Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    9. Do the steps mentioned above again. Between step (b)and (c), replace 1 or 2 selected bolts.

      HINT:

      When replacing the 2 bolts, replace 1 bolt for each time.

  5. INSPECT TOE-IN 

    Toe-in 

    Fig 7: Inspecting Toe-In
    G02837350Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 8: Turning Right And Left Rack Ends By An Equal Amount To Adjust Toe-In
    G02837351Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    If the toe-in is not within the specified value, adjust it at the rack ends.

  6. ADJUST TOE-IN 
    1. Remove the rack boot set clips.
    2. Loosen the tie rod end lock nuts.
    3. Turn the right and left rack ends by an equal amount to adjust the toe-in.

      HINT:

      Try to adjust the toe-in to the center of the specified value.

      Fig 9: Identifying Lengths Of Right And Left Rack Ends
      G02837352Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Make sure that the lengths of the right and left rack ends are the same.

      Rack end length difference: 1.5 mm (0.059 in.) or less 

    5. Torque the tie rod end lock nuts.

      Torque: 47 N.m (479 kgf.cm, 35 ft.lbf) 

    6. Place the boots on the seats and install the clips.

      HINT:

      Make sure that the boots are not twisted.

      Fig 10: Identifying Wheel Angle
      G02837353Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. INSPECT WHEEL ANGLE 

    Turn the steering wheel fully, and measure the turning angle.

    Wheel turning angle: 

    Fig 11: Wheel Turning Angle Table
    G02837354Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    WHEEL TURNING ANGLE

    Inside wheel 38° 03' +/- 2° (38.05° +/- 2°)
    Outside wheel: Reference 32° 56' (32.93°)

    If the right and left inside wheel angles differ from the specified value, check the right and left rack end lengths.