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REAR SUSPENSION AND WHEELS
149
Fig. 251 • Installing roller bearing cup.
1. Driver A. 74088.• 2. Rear wheet hub.
Assembly.
For the assembly of the control arm just reverse
the disassembly procedure and recall the following:
- install roller bearing cup using driver A. 74088
(fig.
251);
- install resilient bushings using driver A. 14053;
- lubricate bearings liberally with FIAT MR 3
grease;
- draw up
all
mounting nuts and screws with
torques tabulated on page 193.
COIL SPRINGS
Check to make sure that coil springs register
correct deflection rate and show no cracks; other-
wise replace springs.
Examine the condition of rubber seats and renew
them, if damaged.
Coil spring specifications:
wire diameter.
.594" ± .002" (15.1 ±0.05 mm)
inner diameter
3.976" (101
mml
active turns . .
4
total turns . . .
6
direction of winding
clockwise
Fig. 252 • Installing roller bearing snap ring.
1. Bearing cup. - 2. Bearing snap ring.• 3. Rear wheel hub.
Coil springs are graded into two categories:
- a yellow paint daub on center turns identifies
springs which, under a load of 1,653 lbs (750 kg),
develop a length in excess of 6.457" (164 mm)
(early type) or 6.653" (169 mm) (late type);
Fig. 253 •
Securing rear wheel hub and brake backing plate
to control arm.
1. Rear wheel hub. - 2. Hub and brake backing plate mounting
screw. -
3.
Torque wrench.
Up to car
with
From car
with
parts serial No. 005083
parts
serial No. 005084
Free height . . . . . . . . . . . . . . . . .
Height under 1257 ±55 lbs (570 ±25 kg) of load
Height under 1817 lbs (824 kg) of load . . . .
Deflection rate (between 836 and 1653 lbs - 360 and 750 kg)
two
9.370" (236 mm)
6.457" (164 mm)
5.157" (131 mm)
.232 in/IOO lbs
(13 mm/IOO kg)
two
9.567" (243 mm)
6.653" (169 mm)
5.354" (136 mm)
.232 in/IOO lbs
(13 mm/IOO kg)
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