1935 Cadillac - GM Heritage Center

15
350
FRONT WHEEL SUSPENSION SYSTEM
Specifications—Figs. 13 to 19, Inclusive
355-D
Series 10 Series 20 Series 30
A H-i' u-m° H-iH"
B 3tt" 5&" 5&" 5A'
370-D 452-D
C 4° 51' 3½° 3½° 3½° 3½ 0 3½°
D 95° 51' 10' 95° 95° 95° 95° 95°
E 3° 3° 1° 1° r
F-G "F" should be in. less than "C measured against tire side wall 8 in. above floor
H
K
M
N
O
R
U
V
8A'
18¼'
1M"
w
ff-tt"
1¼"
2¼"
8«'
8¾'
1¾'
2-3½°
16¾"
8&"
18¾'
«'
2A'
«'
7H'
ltt"
2-3¾°
16¾"
8&'
18¾'
2A'
Vs"
7½'
9*'
ltt"
2-3½°
16¾"
18¾'
-? S If
il6
7½'
9A'
2-3½ 0
16¾"
3tS
18¼"
*1»
«'
7½"
9A"
ltt"
2-3½°
16¾"
8A"
18¾"
2&"
H'
7H"
9A"
ltt"
Insufficient caster results in car wander which
makes it difficult to keep a car travelling ahead in
a straight course. Reverse caster results in erratic
steering. A car under this condition will tend to
go from one side of the road to the other, will turn
curves easily but will be difficult to straighten out
at the end of the curve.
Adjustment
The amount of caster is 3° on the 355-D Series
10 and 20 Cars, 1° on the remaing Cadillac models
and 1 }/2 to 2° on the LaSalle with the weight of the
car on the front wheels.
Before checking the caster angle, it is important
to remove all extras such as shimmy dampening
.devices, etc., from the front wheel suspension
system. The car is then lowered to bring all of
the weight on the wheels, after which it should be
moved back and forth a full turn of the wheels to
relieve the tire tension. Also see Fig. 20.
The caster angle should come within the limits
given above. Equal caster or the same amount
within 34 degree on both sides of the car is extremely
important. Unbalanced caster will cause a car
to pull to one side, usually towards the side with
the least amount of caster, causing undue tire
wear, hard steering and wheel shimmy.
Necessary corrections in caster are made by
adjusting the threaded pin, which connects the
shock absorber arms to the upper end of the steering
knuckle support.
On Cadillac cars first loosen the yoke on the
lower suspension arm and then turn the threaded
pin to the right or clockwise on the right side of
the car as viewed from the driver's seat to move
the top of the steering knuckle support toward the
rear, increasing the caster, and turn it oppositely
to move the top of the support toward the front,
decreasing the caster.
Chalk
Marks
Fig. 20. The front wheels should be turned on their
bearings to bring the high spot or that portion of the
tire with the greatest run-out toward the front or rear
as shown at the left when checking caster, camber, and
knuckle pin inclination and at the top or bottom as
shown at the right when checking toe-in and toe-out