Disassembly Of Clutch Pressure Plate Assembly; Reassembly Of Clutch Pressure Plate Assembly; Adjustment Of Clutch Release Levers - Cadillac 1937 LaSalle VVI Information

113
C L U T C H
Series 37-90—
T h e procedure for removing the c l u t c h on the
37-series Cadillac V-16 is as follows:
1. Disconnect the front and rear universal
joints and remove the transmission as explained
in N o t e 10, Page 125.
2. R e m o v e the four retaining nuts that hold
the c l u t c h on the flywheel.
3. R e m o v e c l u t c h assembly from flywheel.
4. Installing Clutch in Car
T h e clutch is installed in the reverse order of
its removal as explained in N o t e 3.
W h e n installing the clutch on series 37-50, 60,
65, 70, 75 and 85 cars, it is important to locate
the c l u t c h in the correct position according to the
m a r k i n g made on the flywheel and pressure plate
assembly. O n these cars, it is also important to
install the driven disc w i t h the side on which
the cushion springs project toward the trans-
mission. T h e disc is also marked " F L Y W H E E L
S I D E " to indicate its correct position on the
flywheel.
A l w a y s inspect the clutch disc facings carefully
before installing a clutch and replace them i f
they are badly worn, glazed, o i l soaked, or other-
wise in unsatisfactory condition for further use.
Be sure also to line up the c l u t c h driven disc
with the pilot bearing using aligning arbor, T o o l
N o . J-1031, before tightening the clutch retaining
screws. T i g h t e n the retaining screws securely
before removing tool. O n series 37-85 cars use
this same tool to align the flywheel housing after
installation of the clutch on the flywheel in order
to secure proper alignment between the c l u t c h
hub and the transmission c l u t c h connection shaft.
Note: O n Series 37-90 cars, the entire clutch
assembly comes off as a complete unit
and alignment of the driven discs is not
disturbed except when the clutch assem-
bly itself is disassembled.
If a new c l u t c h disc or transmission is installed,
movement between the splines in the hub of the
c l u t c h disc and c l u t c h connection shaft must be
free to prevent any spinning action in the clutch.
L u b r i p l a t e or graphite applied to the splines will
aid in the proper assembly of these units.
After the transmission and floor boards have
been installed, always check the clutch pedal
free play, explained in N o t e 1, as a final check on
the completed job.
Caution
Under no circumstances allow the transmission
to hang in the c l u t c h assembly when removing or
installing the transmission as this would bend or
otherwise damage the driven disc.
D o riot p u t oil or kerosene i n the clutch.
K e e p the clutch facings d r y and free from o i l .
5. Disassembly of Clutch Pressure Plate
Assembly
The following is a procedure for disassembling
the c l u t c h pressure plate assembly of all 37-series
cars, except the 37-90, V-16, which is serviced in
the field i n complete assemblies only.
1. Place the pressure plate assembly on " a n
arbor press w i t h a block under the spring pressure
plate, so arranged t h a t the cover is left free to
move down.
2. Place a block or bar across the top of the
cover, resting it on the spring bosses, and place
the assembly under compression.
3. R e m o v e the retaining screws which hold
the clutch release levers in place.
4. Slowly release the pressure from the press
and remove the spring cover.
5. R e m o v e the springs and the clutch release
levers b y removing the c l u t c h release lever p i v o t
pins and disassembling the yokes and rollers.
6. Reassembly of Clutch Pressure Plate
Assembly
1. Place pressure plate i n arbor press and set'the
clutch springs on it in a vertical position, seating
them on the small bosses.
Note: Inspect the springs carefully and replace
them in complete sets if they show signs
of having been overheated. I f the springs
have been overheated, they will show a
pronounced blue color, indicating the
temper has been drawn, or else the paint
will be burned off the springs. If the
heating has continued long enough, the
springs will have a dark gray color, indi-
cating that the temper has been entirely
removed from them.
2. R e i n s t a l l the clutch release levers in the
reverse order of removal.
3. L a y the cover on top of the assembled parts,
t a k i n g care the clutch levers are in position and
that the tops of the pressure plate springs are
properly seated under the seats in the cover.
4. L a y a bar across the cover and slowly
compress the assembly, m a k i n g sure that the
pressure plate lugs are guided through the proper
holes in the cover.
5. Screw the adjusting nuts down flush with
the top of the bolts.
6. Release and apply pressure on the assembly
several times so that all m o v i n g parts will settle
into their working position. >
7. R e m o v e pressure plate assembly from the
press and adjust clutch release levers as explained
in N o t e 7. .
7. Adjustment of Clutch Release Levers
T h e o n l y accurate method to adjust the c l u t c h
release levers when required on 37-series V - 8 and
V-12 cars, is b y the use of a c l u t c h lever adjusting
disc, T o o l N o . J-685.
T h e procedure for adjusting the c l u t c h release
levers is as follows:
1. Place adjusting gauge in the flywheel in the
position n o r m a l l y occupied b y the driven disc.