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Home >> Subaru >> 2018 >> BRZ Limited, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 10 (Wheel Alignment) >> Rear Wheel Alignment >> Adjustment
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Rear Wheel Alignment: Adjustment

WARNING: This page is about a different car, the 2019 Subaru BRZ. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: To ensure proper functioning of the brake system, be sure to perform the neutral position setting of the VDC sensor as initialization after alignment adjustment or removal.replacement of suspension or underbody parts. (Refer to WORK SUPPORT )
  1. Tire inspection (Refer to WHEEL AND TIRE SYSTEM )
  2. Vehicle height inspection (Refer to FRONT WHEEL ALIGNMENT )
  3. Side slip inspection
    1. Check the side slip using a side slip tester.

      Standard value: 0±5 mm {0±0.20in} (per 1 m {3.3ft})

      CAUTION:
      • Enter onto the side slip tester in the straight ahead position at a speed equal to or less than the walking speed (4 km/h {2.5 MPH}), and perform the inspection while in neutral.
      • Do not depress the brake pedal on the tester.
      • Do not turn the steering wheel on the tester.
    2. If it is out of standard value, check the wheel alignment.
  4. Toe-in inspection
    1. Bounce the vehicle to stabilize it.
    2. Move the vehicle straight 5 m {16.4 ft} forward by manually pushing it.
      CAUTION: If the vehicle has been moved backward, be sure to move it forward by the same distance.
    3. Adjust the height of the toe-in gauge pointer so that it is at the same height as the center of the rear wheel axis, and set it behind the tire.
      G12588508Courtesy of SUBARU OF AMERICA, INC.
    4. Place a tread center mark on the back of both rear tires, and measure the distance between the marks (dimension B).
    5. Move the vehicle forward by pushing it slowly to rotate the rear wheels 180°.
      CAUTION: Be sure not to rotate the tires more than 180°. If the wheels have been over-rotated, repeat from the setting up of the toe-in gauge.
    6. Measure the distance between the marks at the front of the tires (dimension A).
      G12588509Courtesy of SUBARU OF AMERICA, INC.
    7. Calculate the toe-in.

      Standard value: 2±3mm {0.08±0.12in}

      NOTE: Toe-in = Dimension B - Dimension A
  5. Toe-in adjustment
    1. Loosen the toe adjust cam nut.
    2. When adjusting the toe-in of the left and right wheels at the same time, adjust the toe-in by turning the toe adjust plate No. 2.

      Standard value: 2±2 mm {0.08±0.08 in}

      NOTE: When the left and right toe adjust plate No. 2 are turned by one graduation, the toe will change approx. 5.2mm {0.20in}.
    3. Tighten the toe adjust cam nut.

      Standard value: T=100N.m {1020kgf.cm} {73.8ft.lbf}

    G08556962Courtesy of SUBARU OF AMERICA, INC.
  6. Camber inspection
    1. Lift up the vehicle on a level surface.
    2. Set the wheel alignment gauge. (Refer to FRONT WHEEL ALIGNMENT )
    3. Calibrate the wheel alignment gauge. (Refer to FRONT WHEEL ALIGNMENT )
    4. Lower the vehicle and check the camber.

      Standard value

      Camber
      -1°10' ±45'
      CAUTION:
      • Perform the inspection while the vehicle is at curb weight (with the spare tire, jack, and service tools loaded and with a full fuel tank).
      • The limit of difference between the left and right camber values is 45'.
      • Remove foreign matter from the axle hub end surface before performing the inspection.
      NOTE: The rear camber is not adjustable. When the value is not within the left and right difference range, check the suspension parts and the joint for deformation, and replace the faulty parts, if any.
    5. Remove the wheel alignment gauge.
  7. Rear suspension inspection
    1. Inspection of rear suspension member
      1. Check the distance between the center of rear suspension arm ASSY No. 2 LH and RH mounting bolts.

        Standard value: 457.5±3mm {18.01±0.12in}

        NOTE: If it is out of standard value, replace with a new rear suspension member.
      G12588511Courtesy of SUBARU OF AMERICA, INC.
    2. Inspection of rear suspension arm ASSY No. 2
      1. Check the distance between the center of rear suspension arm ASSY No. 2 mounting bolts.

        Standard value: 450.9±2 mm {17.75±0.08 in}

        NOTE: If it is out of standard value, replace with a new rear suspension arm ASSY No. 2.
    3. Inspection and adjustment of toe-in and camber
      1. Check the toe-in and camber, and if they are out of standard value, adjust them with the play in the mounting portion of the rear suspension member or that of the upper control arm and rear suspension arm.
      G12588512Courtesy of SUBARU OF AMERICA, INC.
  8. Confirmation of front tires in the straight-ahead position
  9. VDC sensor mid point setting (Refer to WORK SUPPORT )
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