Subaru 2002 IMPREZA Service Manual page 1904

FRONT SUSPENSION
7. THRUST ANGLE
• Inspection
1) Position the vehicle on a level surface.
2) Move the vehicle 3 to 4 m (10 to 13 ft) directly
forward.
3) Determine the locus of both front and rear axles.
4) Measure the distance "L" between center line of
loci of the axles.
Thrust angle:
Less than 20 ' ' ' ' when "L" is equal to or less
than 15 mm (59 in).
(1) Center line of loci (front axle)
(2) Center line of loci (rear axle)
• Adjustment
1) Make the thrust angle adjustments by turning
toe-in adjusting bolts of rear suspension equally in
the same direction.
2) When one rear wheel is adjusted in a toe-in di-
rection, adjust the other rear wheel equally in toe-
out direction, in order to make thrust angle adjust-
ment.
WHEEL ALIGNMENT
3) When the right and left adjusting bolts are turned
incrementally by one graduation in the same direc-
tion, the thrust angle will change approx. 16' ["L" is
almost equal to 12 mm (0.472 in)].
Thrust angle:
0 °± °± °± °± 20 ' ' ' '
NOTE:
Thrust angle refers to a mean value of right and left
S4M0350B
rear wheel toe angles in relation to the vehicle body
center line. Vehicle is driven straight in the thrust
angle direction while swinging in the oblique direc-
tion depending on the degree of the mean thrust
angle.
FS-14
(1) Center line of loci (front axle)
(2) Center line of loci (rear axle)
(1) Front
(2) Thrust angle
(3) Body center line
S4M0350B
B4M0193B