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Buick 40 Series 1948 Shop Manual page 143

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4-12
CLUTCH
CLUTCH, TRANSMISSION, UNIVERSAL JOINT
(140)
push spring retainers up over the spring. See
figure 4-15.
4. Place clutch
cover
over spring and pres-
sure plate with marks made at disassembly in
alignment.
5. Use
Assembly
Tool J 1039-1 and Assister
Hook J 1039-2 to hook loop of ea
ch
spring re-
tainer
over
ear on clutch cover. See figure 4-16.
Do not hammer on tools to get them into place
because
this will distort
clutch
cover . Do not
stretch
r
etainer s any further than is necessary
to hook loop over ear on cover. If retainers ap-
pear weak or distorted they should be replaced
in complete sets to insure
even
tension.
HOO K
J·1039 -2
Figure 4-16-Attaching Spring Relainer
10
Cover-Series 40-50
4-15
ASSEMBLY
OF
CLUTCH-
1948
SERIES
70
1. Connect pivot screws to release levers with
dowel pins and attach release levers to pres-
sure plate with pivot pins locked in place with
release lever springs. Springs must be installed
over top of release levers. Very sparingly oil
release lever pins and sides of levers.
2. Coat side surfaces of driving lugs on pres-
sure plate with Lubriplate or Delco Brake Lu-
bricant (this is not
brake
fluid). Use sparingly
-
exc essive
lubrication will ruin driven plate
facings.
3.
Place
driven plate and
pressure
plate on
fixture used
to disassemble
clutch
.
Place clutch
spring
seats
and clutch springs
over
boss es on
pressure
plate, then place clutch
cover
on
pres-
sure plate so that marks made at disassembly
are aligned and springs are properly located
over
bosses in cover. See figure 4-10.
4.
Screw Clutch Guide Pins J 857 on the
three release lever pivot screws through holes
in cover, then press cover down while guiding
Figure 4-17-Assembling Clulch-1948
Series
70
pressure
plate driving lugs into slots in cover.
See figure
4-17.
When cover is all the way
down
, remove
Guide Pins J 857, install nuts on
pivot screws and turn them down against cover.
5. Place metal spacers of equal thickness be-
tween release levers and inner edge of clutch
cover to hold clutch springs compressed, relieve
pressure on cover and remove assembly from
fixture.
6. Place Clutch Release Lever Adjusting
Gauge J 1036 on flat surface, hold a scale
vertically inside hub of gauge and measure the
height, which will be either 2" or
2Yt6".
Paint
this dimension on hub for future reference. If
height is 2", provide a spac
er
%6" thick for use
in Step 7; if height is
2%6"
provide spacer
lfs"
thick.
7. Mount dial indicator on Gauge Fixture J
1013, set fixture and the spa
cer
selected in Step
6 on flat surface, press indicator stem down
against the spacer until indicator hand has
made one
revolution,
tighten indicator to fix-
ture and set indicator to zero. NOTE: Use of
prop
er
spacer results in
setting
release lever
height to
2%6"
(step
9),
which provides
better
clutch release than
2"
or
2Yt6".
8. Place Adjusting Gauge J 1036 on spare
flywheel and place clutch
assembly
on gauge so
that release levers are
directly above
machined
bosses of gauge.
Install
cover bolts and tighten
ea
ch on
e
several turns
at
a time until all are
uniformly
tight.
Remove metal spacers installed
in step 5
above.
9. Carefully place gauge fixture and indicator
on machined hub of adjusting gauge so that
in-
dicator button is directly over inner end of one
release lever. See figure 4-18. Adjust nut on re-

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