Subaru IMPREZA 2002 Service Manual page 16

WHEEL ALIGNMENT
FRONT SUSPENSION
I
7. THRUST ANGLE
Inspection
1) Position the vehicle on a level surface.
2) Move the vehicle 3 to 4 meters 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).
c-
.
T
S4M0350B
(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 the thrust angle ad-
justment.
3) When the left and right adjusting bolts are turned
incrementally by one graduation in the same direc-
tion, the thrust angle will change approximately 16'
['I" is almost equal to 12 mm (0.472 in)].
Thrust angle:
O " f 2 0 '
S4M0350B
M
(1) Center line of loci (front axle)
(2) Center line of loci (rear axle)
NOTE:
Thrust angle refers to a mean value of left and right
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
direction depending on the degree of the mean
thrust angle.
( 1
1
t
(1) Front
(2) Thrust angle
(3) Body center line
FS-14