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Buick 40 Series 1948 Shop Manual page 144

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(141)
CLUTCH, TRANSMISSION, UNIVERSAL JOINT
CLUTCH
4-13
Figu
re 4-18-Release Lever
Ad
iustm e nt - 194 8
Seri es 7
0
lease lever pivot screw
as
required to bring
in-
dicator to zero reading on the
first
revolution of
ind
icator
hand. Adj ust the other release levers
in
same manner, using care to have alI levers
within .005" indicator
r
eadi ng of
each
other.
10.
Lock pivot screw
nuts
by crimping thin
edge against the flat on screws, using large
pliers.
Recheck with indicator to make sure
lever settings did not change.
11. Place metal spacers of equal
thickness
between release levers and clutch cover to hold
clutch springs compressed, then loosen cover
bolts
evenly to remove clutch
assembly
from
flywheel.
4
-16
INSTALLATION OF CLUTCH-ALL
SERIES
1.
Very sparing ly apply front wheel bearing
lubricant to mai
n drive
gear
pilot bearing
in
crankshaft. If too
much
lubricant
is
used it will
run out on face of flywheel
when
hot
and r
uin
driven
plate facings.
Make sure
that surface
of
flywhee
l
is
clean
and dry.
2. Make
sur e
that
splines in
driven
plat e hu
b
are clean and
apply
a light coat ing of
Lubri-
plate. Dr iven plate facings must be clean and
dry.
3. Place
driven plate on
pressure
plate with
oil slinger toward pressure
plate,
t
hen
place
clutch
assembly
in position against
flywheel,
being sure to align marks made on flywheel and
cover before re
moval.
InstalI cover bolts with
lockwashers
but
do not t
ighten bolts.
4. In
sert a
spar e main drive gear through
h
ub
of driven
plate and
into
t
he
pilot bearing.
.
Tighten
each
clutch cover bolt several turns at
a t
ime
to
draw
cover evenly into pilot of fly-
wh
eel
and
avoid
distortion of cover. While tight-
ening cover bolts, move main drive gear from
side t
o
side
to
center
driven
plate
with
pilot
bearing. If
plate
is
not properly
centered it will
be
difficult
to
slide
transmission into
place.
Make
sure
all
cover bolts are uniformly tight-
ened. Remove spacers from
b~tween
cover and
releas e levers (Series 70 only).
5.
Fill groove in re
lease
bearing
sleeve
with
whee l bearing
lubr icant . Coat release yoke ball
stud and ball recess in re
lease
yoke with Lubri-
plate
or Delco Brake Lubricant. Attach release
bearing to release yoke and attach yoke to ball
stud in
flywheel housing.
6.
Install release bearing support with a new
gasket, placing support in flywhee
l
housing with
the tab on support alined with molded recess in
housing to permit
positive
drain back of oil to
transmission. Install spring washer with outer
edge against bearing support.
7.
Install
transmission (par. 4-34), being sure
to use
Guide
Pins J 851 to avoid damage to
clutch driven
plate
which would result if weight
of transmission is allowed to rest on main drive
gear in driven plate hub.
8. Install boot and release rod nut lock on
yoke (fig. 4-9), attach release rod to yoke, then
adjust for
clutch
pedal lash of
%"
(par. 4-7).
Figure
4-19-Checking Contact of Clutch Sp
rin g with
Cover-
Series 40-50
9. On
S
eries 40-50 clutch, have a
helper
hold
clutch fully
disengaged,
then check with a
f
eeler
gauge for space between cover
and clutch spring
at points of
contact.
See figure
4-19.
The
clutch
will not full
y
disengage if an
yone
of
the
clutch
spr ing
contact
points fa
ils to
solidly
contact t
he
cover.
This condition must be
corrected by
re
-
moving clutch and
properly
setting t
he
spring
retainer ears on cover. See figure
4-11.
10. Install flywheel lower
housing,
making

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