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Home >> Toyota >> 2004 >> Celica GT, Standard >> Repair and Diagnosis >> Suspension >> Wheel Alignment >> Front Wheel Alignment >> Inspection

Front Wheel Alignment: Inspection

  1. MEASURE VEHICLE HEIGHT 
    Vehicle height:

    Tire size Front(1) mm (in.) Rear(2) mm (in.)
    195/60R15, P195/60R15 190(7.48) 224(8.82)
    205/55R15, P205/55R15 190(7.48) 226(8.90)
    205/50R16 193(7.60) 225 (8.86)
    (1) Front measuring point. Measure the distance from the ground to the center of the front side lower suspension arm mounting bolt.
    (2) Rear measuring point. Measure the distance from the ground to the center of the rear side lower suspension arm suspension member side set bolt.
    Fig 1: Vehicle Height Chart
    G02896003Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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 2: Identifying Front And Rear Measuring Point
    G02896004Courtesy 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: 195/60R15, P195/60R15 tire: 

    Fig 3: Camber, Caster And Steering Axis Inclination Table
    G02896005Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    205/55R15, P205/55R15 tire: 

    Fig 4: Camber, Caster And Steering Axis Inclination Table (205/55R15, P205/55R15 Tire)
    G02896006Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    205/55R16 

    Fig 5: Camber, Caster And Steering Axis Inclination Table (205/55R16)
    G02896007Courtesy 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 
    NOTE: After the camber has been adjusted, inspect the toe-in.
    1. Remove the front wheel.
      Fig 6: Removing Shock Absorber 2 Nuts
      G02896008Courtesy 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.
    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.
      1. Torque: 153 N.m (1,560 kgf.cm, 113 ft.lbf) 
    7. Install the front wheel.
      1. 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.

      Fig 7: Camber Adjustment Bolt Size Table
      G02896009Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 8: Adjusting Camber By Pushing Or Pulling
      G02896010Courtesy 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:

    Toe-in (total) +B:0° +/- 12'(0° +/- 0.2°) C - D: 0 +/- 2 mm (0 +/- 0.08 in.)
    Fig 9: Inspecting Toe-In
    G02896011Courtesy 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 10: Loosening Tie Rod End Lock Nuts
      G02896012Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Make sure that the lengths of the right and left rack ends are the same.
      1. Rack end length difference: 1.5 mm (0.059 in.) or less 
    5. Torque the tie rod end lock nuts.
      1. Torque: 74 N.m (750 kgf.cm, 54 ft.lbf) 
    6. Place the boots on the seats and install the clips.

      HINT:

      Make sure that the boots are not twisted.

      Fig 11: Identifying Rack End Length Difference
      G02896013Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. INSPECT WHEEL ANGLE 

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

    Wheel turning angle: 

    195/60R15, P195/60R15 tire: 

    Fig 12: Wheel Angle Table (195/60R15, P195/60R15 Tire)
    G02896014Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    WHEEL ANGLE

    Inside wheel 38°41' +/- 2° (38.68° +/- 2°)
    Outside wheel: Reference 33°20' (33.33°)
    205/55R15, P205/55R15 tire:

    Inside wheel 38°46' +/- 2° (38.77° +/- 2°)
    Outside wheel: Reference 33°25' (33.42°)
    205/50R16 tire:

    Inside wheel 38°38' +/- 2° (38.63° +/- 2°)
    Outside wheel: Reference 33°19' (33.32°)

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

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