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CLUTCH, TRANSMISSION, UNIVERSAL JOINT
.
CLUTCH
4-5
CUSHIO N
SPRING ----~_
HUB
FLAN GE
---F'--~
MOULDED
FRICTION
RING
"----..i!!:j!t~r
BALAN CE
RIVET
-
----,,...--
--'..1...
FACINGS
Figure 4-4-Driven Plate, Transmission Side-1948 Series 70
The driven plate assembly is designed to pre-
vent torsional periods of the engine from be-
ing transmitted to the transmission gears and
causing rattle. This is accomplished by driving
the plate hub through torsional coil springs
and providing frictional dampening by means
of molded friction washers.
The flange of driven plate hub and two molded
friction washers are located between the drive
washer and the plate which bears the facings.
The plate and driven washer are solidly joined
together
by
three rivets which are shouldered
so that the hub may move independently of the
plate and washer. When the parts are riveted
together the molded friction washers are com-
pressed between the hub flange and drive washer
just enough to provide proper braking friction
between these parts. Six coil springs are located
in notches or
recesses
in the plate, hub flange,
and drive washer so that the plate and washer
drive the hub through these springs. The three
shouldered rivets pass through notches in the
edge of hub flange and serve as stop pins for
limiting compression of the coil springs
when-
ever shock loads are transmitted through the
clutch assembly. The coil springs are covered
on transmission side of plate by a slinger which
keeps oil
or
oil vapor from the driven plate fac-
ings.
See figures 4-3 and 4-4.
d. Clutch Release Mechanism
The clutch pedal is supported on the car
frame upon the same shaft and bracket assem-
bly which supports the brake pedal. The pedal
is bushed and provided with a lubrication fit-
ting.
An over-center type actuating spring holds
the pedal firmly against a rubber bumper on
the toe board when clutch is in engaged posi-
tion, and helps to reduce pedal pressure as it
goes over center when clutch is
disengaged.
The actuating spring is attached to the frame
by
an
eye
bolt and to a short arm of clutch
pedal
by
an extension which straddles the pivot
point of pedal. The spring and extension are
positioned so that the pedal is pulled upward in
the free position and pulled downward when
depressed to disengage the clutch. See figure 4-7.
The clutch pedal is connected by a non-adjust-
able link to the outer arm of a release equalizer
wh ich provides a universal
action
in the release
linkage. The equalizer permits smooth engage-
ment of clutch without being affected by move-
ment of the engine on its mountings. The inner
end of equalizer is fitted with a rubber bushing
BALL STUD
BEARINGS
~~~
BRACKET AND PIN
I
,f)
n
.
L
RElEASE EQUALIZER
(()
-~
C
o
'SPRING SEATS
/
WIRE\.
r~
J
Figure 4-S-Clutch Release Equalizer-Disassembled
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