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35
CLUTCH—-Service Information—Specifications
4.
I n s t a l l a t i o n of S e c o n d T y p e C l u t c h o n E a r l y 452-C
C a r s
A second t y p e c l u t c h a n d flywheel are used o n 4 5 2 - C cars
b e g i n n i n g w i t h engine u n i t 50-24.
T h e change m a d e i n the
c l u t c h is the r e m o v a l of the s t a r t e r r i n g gear from the c l u t c h
center plate to the flywheel, w h i c h c o n s t r u c t i o n is s i m i l a r t o
t h a t used o n the V - 8 a n d V - 1 2 cars.
T h e p a r t n u m b e r of this
second t y p e c l u t c h is 3500109 a n d t h a t o f the
flywheel
is
1096192.
T h i s second type c l u t c h is furnished for replacement o n a l l
452 cars, the " A " a n d " B " series as well as the
" C " series.
I n s t a l l a t i o n o n a l l except 4 5 2 - C cars after engine u n i t 50-23
w i l l also necessitate the i n s t a l l a t i o n of the second type flywheel
w i t h starter gear.
A s the flywheels s u p p l i e d under part n u m b e r 1096192 are
for use o n " A " a n d " B " as well as " C " series cars, t h e y are
s t a m p e d w i t h t w o sets o f i g n i t i o n t i m i n g m a r k s .
These m a r k s
c a n be readily identified, however, as the I G / A m a r k for the
" A " a n d " B " cars is 1
x
/i inches ahead o f center, whereas the
I G / A m a r k for the " C " series is % i n c h ahead o f center.
T h e
I G / A m a r k s c a n b e further identified b y the stampings " A
a n d B m o d e l " a n d " C m o d e l " respectively.
5.
C l u t c h B a l a n c e
Before a c l u t c h leaves the factory, i t is p r o p e r l y balanced
a n d each of the three plates are m a r k e d i n line so t h a t the
plates c a n be l i n e d u p w i t h o u t rebalancing a n y time the c l u t c h
is disassembled.
T h e m a r k i n g consists o f a circle i n w h i c h a
letter m a y appear. I f the circles o n each o f the three plates
are l i n e d u p whenever the c l u t c h is reassembled after dis-
assembly, there s h o u l d be no difficulty experienced of a n out
of balance c o n d i t i o n .
Specifications
S u b j e c t a n d R e m a r k s
C l e a r a n c e between—
D r i v i n g plates a n d d r i v i n g pins
N e w l i m i t s
W o r n l i m i t , n o t o v e r
H u b a n d splines o n c l u t c h c o n n e c t i o n shaft
N e w l i m i t s
W o r n l i m i t , n o t over
bearing cap
N e w l i m i t s
W o r n l i m i t , not o v e r .
P e d a l a n d b o t t o m of toe-board.
D i s c facings—
A r e a — t o t a l i n square inches.
D i a m e t e r inside
D i a m e t e r outside
N u m b e r used
T h i c k n e s s
D r i v e n disc w i t h facings—
N u m b e r used
T h i c k n e s s
N e w l i m i t s
W o r n l i m i t , n o t o v e r .
D r i v i n g plates, n u m b e r of
M o u n t i n g of c l u t c h c o n t r o l m e c h a n i s m (Sec N o t e 1).
P e d a l (clutch) free p l a y
Pressure springs, n u m b e r of
R e m o v a l of transmission (See N o t e 2)
S p r i n g , retracting for c l u t c h pedal—
F r e e length inside loops
•
T e n s i o n in pounds stretched to 1 0 ¾ i n . between l o o p s .
T y p e
V e n t holes i n c o n t r o l v a l v e b o o t (See N o t e 3 ) .
L a S a l l e
j
C a d i l l a c
345-B
355-B
370-B
452-B
.002-.0045"
.008"
.002-.0045"
.008"
.002-.0045"
.008"
.002-.0045"
.008"
0005-.002"
.005"
.0005-.002"
.005"
.0005-.002"
.005"
.0005-.002"
.005"
.001-.004"
!
.006"
!
H-Vs"
.001-.004"
.006"
K-Vs"
.001-.004"
.006"
h-v
s
"
.001-.004"
.006"
H-Vs"
i
219.1
5 ½ "
i
10"
!
4
;
.135-.145"
219.1
5 ½ "
10"
4
.135-.145"
219.1
5 ½ "
10"
4
.135-.145"
243.3
b]4"
1 0 ¾ '
4
i
.135-.145"
i
2
2
I
2
i
.325-.350"
j
.260"
i
.325-.350"
i
.260"
.325-.350"
.260"
.335-.360"
.260"
i
:
3
i
3
[
i
3
1 M - W
!
1 ¾ - ! ½ "
1 M - 1 M "
i
\H-\H'
12
12
1
i
1 2
|
12
6 J 4 "
34 t o 38
!
6 ½ "
i
34 t o 38
i
I
6 ¾ "
|
34 t o 38
I
i
1
6 ¼ "
1
34 to 38
!
P l a t e
P l a t e
P l a t e
!
P l a t e
August 1933
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