Saab 95 1967, Service Manual

Page: 475 / 610

S
S?!
GRIP
NOTE
After adjustment of toe-in, the measurement A for
a tie-rod of the later design must on no account ex.
ceed 1.0 in. (25 mm).
For tie-rods opposed to each other, the difference
between the measurements A must not exceed
0.08 in. (2 mm).
CAMBER
Camber
is understood to mean the deviation of the wheel
from the vertical. If the wheel tilts inwards, camber is
said to be negative
The camber should be 3/40 t 1l4° if the car is fitted with
diagonal tires (5.20 x 15 or 5.60 x 15) and 1/3° i 1/2°
if the car is fitted with radial tires (155 SR 15).
Checking and adjustment
Camber, and thus king-pin inclination also. can be adjust-
ed by inserting shims under the bearing brackets of the
Upper control arms. The desired result can thus be ob-
tained by the addition or removal of shims.
increasing the thickness of shims under both bragkets by
0.1 in. (2.5 mm) reduces camber by approx. ‘1/2. ed
If. on the other hand, an 0.1 in. (2.5 mm) SM“ IS remov
from under each bracket, camber will be increased by
approx. 1/2°. both
Shims of equal thickness must always be used under
brackets.
CASTER
Caster is the deviation
of the k‘ ‘ ‘ -_
“I when Viewed fmm "19 pin am: from the verti
the side, and is generally expressed
gst'giis‘kfaner Vefies greatly from car to car. In most
and caster isnipln is inclined rearwards, as illustrated,
is iNClined fa en said to be positive If the king-pin
Daily, the ki Wards, caster IS said to be negative Fi-
case ca may be perfectly vertical, in which
Stet Is 0. The caster should be 2° i 1/2° positive.
Checking and adjustment
if caster adjustment is called for, this can be done by in-
“*an shims under the bearing brackets of the upper con-
trol arms.
Transference of shims with a thickness of 0.02 in. (0.5
mm) from under the front bracket to under the rear
bracket results in a 1/2° increase in caster.
Transference of shims with a thickness of 0.02 in. (0.5
mm) from under the rear bracket to under the front
bracket results in a 1/2° decrease in caster.
The same thickness of shims as is removed from under
one bracket must thus always be fitted under the other
bracket.
KING-PIN INCLINATION
In point of fact, there is no king-pin in the true sense of
the term in the Saab car, and the term king-pin inclina-
tion is therefore instead applied to the inclination of the
imaginary axis which passes through the centers of the
two ball joints and meets the ground near the center line
of the wheel. The correct inclination is 7° : 1°.
Checking and adjustment
King-pin inclination is adjusted at the same time as cam-
ber and is changed by the same angle. It is not possible
to adjust king-pin inclination alone, as this is determined
by the steering knuckle. If the king-pin inclination is in-
correct after adjustment of camber, the fault is to be
found in the steering knuckle which should be renewed.
601—3