Buick LeSabre 1965 Service Manual page 149

CLUTCH, S-M TRANSMISSION
46000 CLUTCH 4 - 1 3
wear of the driven plate, flywheel,
and pressure plate if pressure on
the release levers is enough to
prevent positive engagement of
the clutch.
Check pedal lash (free pedal) by
pushing on the pedal pad with the
hand. Pedal lash should be ap-
proximately 7/8" to 1-1/8" meas-
ured at the pedal pad.
Adjust pedal lash as follows:
1. With clutch pedal at full re-
lease position contacting pedal
bumper stop and load removed
from overcenter spring, adjust
turnbuckle to obtain zero lash at
the clutch pedal. Lengthen rod
assembly by turning turnbuckle
1-1/2 turns to give 7/8 to 1-1/8"
lash at the pedal pad. Tighten
locknut to 48-120 in. lbs. and
overcenter eye b o l t to 72-108
in. lbs.
2. Re-install clevis pin and spring
retainer.
4 - 9 REMOVAL, LUBRICA-
TION AND INSTALLA-
TION OF CLUTCH
a. Removal of Clutch
1. Remove propeller shaft from
front companion flange.
2. Remove transmission as de-
scribed in paragraph 4-15.
3. Remove clutch equalizer shaft.
4. Remove ball stud from clutch
release shaft.
5. Remove clutch release lever.
6. Remove clutch release seal
(see Figure 4-10).
7. Remove nylon bushing (see
Figure 4-10).
8. Remove socket head cap screw
on clutch release shaft. From
same hole remove second socket
head (cone point).
9. Pull clutch release shaft out
approximately three (3) inches.
Slide release yoke, woodruff key,
throw-out and return spring bear-
ing off end of release shaft. Re-
move release shaft.
10. Mark clutch cover and fly-
wheel with a center punch so that
cover can be reinstalled in the
same position on flywheel in
order to preserve engine balance.
11. Loosen each clutch cover bolt
one turn at a time in order to re-
lieve c l u t c h spring pressure
evenly and thereby avoid distor-
tion of the cover. Metal spacers
(such as 1/4" nuts) placed be-
tween release levers and inner
edge of clutch cover will aid re-
move and later reinstallation by
holding clutch springs partially
compressed.
12. Support pressure plate and
cover assembly while removing
last bolts then remove the cover
assembly and driven plate.
b. Lubrication of Clutch
Lubrication of the clutch is re-
quired only when the clutch is
removed from the car.
NOTE: Before c l u t c h release
shaft is installed apply a small
amount of wheel bearing lubricant
where right side of clutch release
shaft pilots in flywheel housing.
1. Very sparingly a p p l y wheel
bearing lubricant in pilot bushing
in crankshaft. If too much lubri-
cant is used, it will run out on
face of flywheel when hot and ruin
driven plate facings. Make sure
that surface of flywheel is clean
and dry.
2. Make sure that splines in
driven plate hub are clean and
apply a light coat of wheel bearing
lubricant. Apply a l i g h t coat
of wheel bearing lubricant on
transmission drive gear splines.
Slide driven plate over transmis-
sion drive gear several times.
Remove driven plate and wipe off
all excess lubricant pushed-up by
hub of plate. Driven plate facings
must be kept clean and dry.
3. Coat diameter of throw-out
bearing with wheel bearing lubri-
cant. Make sure transmission
front bearing retainer sleeve is
clean and apply a light coat of
wheel bearing lubricant. Slide
throw-out bearing over transmis-
sion retainer several times. Re-
move throw-out bearing and wipe
off all excess lubricant pushed up
by hub of bearing.
4. If c l u t c h p r e s s u r e plate
driving lugs are dry, brush a
little Lubriplate in between clutch
cover and driving lugs, also be-
tween driving l u g s and r e l e a s e
levers. Wipe off any excess
lubricant.
c. Checking Release Lever
Height
Correct release lever height- is
essential to insure complete re-
lease of the clutch and also to
allow smooth, positive engagement
of the clutch. Before reinstalling
a clutch pressure plate and cover
assembly, release lever height
should be checked as follows:
1. Mount clutch assembly for
checking by placing Adjusting
Gauge J-1036 on a spare flywheel
and then placing clutch assembly
over gauge so that release levers
a r e directly a b o v e machined
bosses of gauge. See Figure 4-11.
NOTE: Thickness of gauge at
machined bosses is .295"; height
of gauge at hub is 2-1/16".
2. Install cover bolts and tighten
each a turn at a time until all are
uniformly tight.
3. Zero dial indicator by mount-
ing d i a l indicator on Support
J-1013. See Figure 4-11. Then set
support on flat surface, press in-
dicator down against surface until
indicator hand turns approxi-
mately one revolution, and tighten
indicator to support. Now set in-
dicator face to zero.