Subaru 2009 IMPREZA Service Manual page 2193

3. CASTER
• Inspection
1) Place the front wheel on the turning radius
gauge. Make sure the ground contact surfaces of
the front and rear wheels are at the same height.
2) Set the adapter into the center of wheel, and
then set the wheel alignment gauge.
(1)
(2)
(1) Alignment gauge
(2) Turning radius gauge
(3) Adapter
3) Measure the caster angle in accordance with the
operation manual for wheel alignment gauge.
Model
Except for OUTBACK
OUTBACK
4. STEERING ANGLE
• Inspection
1) Place the vehicle on turning radius gauge.
2) While depressing the brake pedal, turn the steer-
ing wheel fully to the left and right. With the steering
wheel held at each fully turned position, measure
both the inner and outer wheel steering angles.
Model
OUTBACK
WRX-SS
Other than above
Wheel Alignment
(3)
FS-00213
Caster
5°55
5°50
Inner wheel Outer wheel
37.9° 1.5° 33.5° 1.5°
37.2° 1.5° 32.9° 1.5°
37.8° 1.5° 33.4° 1.5°
• Adjustment
1) Turn the tie-rod to adjust the steering angle of
both inner and outer wheels.
2) Check the toe-in.
NOTE:
Correct the boot if it is twisted.
(1) Lock nut
5. FRONT WHEEL TOE-IN
• Inspection
Toe-in:
0 3 mm (0 0.12 in)
1) Set the toe-in gauge in the position at wheel axis
center height behind the right and left front tires.
2) Place a mark at the center of both left and right
tires, and measure distance "A" between the
marks.
3) Move the vehicle forward to rotate the tires 180°.
NOTE:
Be sure to rotate the tires in the forward direction.
4) Measure the distance "B" between the left and
right marks. Find toe-in using the following calcula-
tion:
A – B = Toe-in
B
FS-11
FRONT SUSPENSION
(1)
FS-00014
A
FS-00015