Specifications & Procedures: Diagnosis Subaru Impreza GD/GC/GG

INSPECTION

Check, adjust and/or measure wheel alignment in accordance with procedures indicated in figure.

Identifying Order Of Wheel Alignment Procedures. Scheme 12

Scheme 13

Scheme 14

1. Adjust tire pressure to specifications.
2. Set vehicle under "curb weight" conditions. (Empty luggage compartment, install spare tire, jack, service tools, and top up fuel tank.)
3. Set steering wheel in a wheel-forward position.
4. Suspend thread from wheel arch (point "A" in figure) to determine a point directly above center of spindle.
5. Measure distance between measuring point "A" and center of spindle. (Scheme 13): Measuring Distance Between Measuring Point "A" & Center Of Spindle (Scheme 14): Wheel Arch Height Chart

Scheme 15

1. Place front wheel on turning radius gauge. Make sure ground contacting surfaces of front and rear wheels are set at the same height.
2. Set ST into the center of the wheel, and then install the wheel alignment gauge. ST 927380000 ADAPTER (Scheme 15): Setting ST Into Center Of Wheel, & Installing Wheel Alignment Gauge

Note. Refer to "SPECIFICATIONS" for camber values. See SPECIFICATIONS , General Description.

Scheme 16

Scheme 17

1. Loosen two self-locking nuts located at lower front portion of strut. CAUTION: When adjusting bolt needs to be loosened or tightened, hold its head with a wrench and turn self-locking nut. Discard loosened self-locking nut and replace with a new one. (Scheme 16): Turning Adjusting Bolt So Camber Is Set
2. Turn camber adjusting bolt so that camber is set at the specification. NOTE: Moving the adjusting bolt by one scale graduation changes camber by approximately 0°10'. (Scheme 17): Turning Camber Adjusting Bolt
3. Tighten the two self-locking nuts. Tightening torque: 152 N.m (15.5 kgf-m, 112 ft-lb)

Scheme 18

1. Place front wheel on turning radius gauge. Make sure ground contacting surfaces of front and rear wheels are set at the same height.
2. Set ST into the center of the wheel, and then install the wheel alignment gauge. ST 927380000 ADAPTER NOTE: Refer to "SPECIFICATIONS" for caster value. See «SPECIFICATIONS»(ref-178975-S14089152952005062700000), General Description. (Scheme 18): Setting ST Into Center Of Wheel & Installing Wheel Alignment Gauge

Scheme 19

1. Using a toe gauge, measure front wheel toe-in. Toe-in: 0+/-3 mm (0+/-0.12 in)
2. Mark rear sides of left and right tires at height corresponding to center of spindles and measure distance "B" between marks
3. Move vehicle forward so that marks line up with front sides at height corresponding to center of spindles.
4. Measure distance "A" between left and right marks. Toe-in can then be obtained by the following equation: B - A = Toe-in (Scheme 19): Measuring Distance "B" Between Left & Right Marks

Scheme 20

1. Loosen the left and right side steering tie-rods lock nuts.
2. Turn the left and right tie rods equal amounts until the toe-in is at the specification. Both the left and right tie-rods are right-hand threaded. To increase toe-in, turn both tie-rods clockwise equal amounts (as viewed from the inside of the vehicle).
3. Tighten tie-rod lock nut. (Scheme 20): Tightening Tie-Rod Lock Nut

1. Tightening torque: 83 N.m (8.5 kgf-m, 61.5 ft-lb)

Note. Check the left and right wheel steering angle is within specifications.

1. Place vehicle on a turning radius gauge.
2. While depressing brake pedal, turn steering wheel fully to the left and right. With steering wheel held at each fully turned position, measure both the inner and outer wheel steering angle.

Steering angle

1. Inner wheel; 37.4°+/-1.5°
2. Outer wheel; 32.5°+/-1.5°