Buick LeSabre 1965 Service Manual page 154

4 - 1 8 46000 CLUTCH
CLUTCH, S-M TRANSMISSIONS
SYMPTOM AND PROBABLE CAUSE
b. Oil soaked driven disc
c. Worn facing or facing torn from disc
d. Warped pressure plate or flywheel
e. Weak coil spring
f. Driven plate not seated in
g. Driven plate overheated
GRABBING
a. Oil on facing or burned or glazed facings
b. Worn splines on clutch gear
c. Loose engine mountings
d. Warped pressure plate or flywheel
e. Burned or smeared resin on flywheel or
pressure plate
RATTLING-TRANSMISSION CLICK
a. Throw-out fork loose on ball stud or in
bearing groove
b. Oil in driven plate damper
c. Driven plate damper spring failure
THROW-OUT BEARING "NOISE WITH CLUTCH
a. Improper adjustment
b. Throw-out bearing binding on transmission
bearing retainer
c. Insufficient tension between clutch fork
spring and ball stud
d. Fork improperly installed
e. Weak linkage return spring
NOISY
a. Worn throw-out bearing
b. Fork off ball stud (Heavy clicking)
PROBABLE REMEDY
b. Install new disc and correct oil leak at its
source
c. Replace disc
d. Replace same
e. Replace cover assembly
f. Make 20-50 normal starts
g. Allow to cool—Check lash
a. Install new disc
b. Replace transmission clutch gear
c. Tighten or replace mountings
d. Replace pressure plate or flywheel
e. Sand off if superficial, replace burned or
heat checked parts
a. Check ball stud and retaining spring and
replace if necessary
b. Replace driven disc
c. Replace driven disc
FULLY ENGAGED
a. Adjust linkage
b. Clean, relubricate, check for burrs, nicks,
etc.
c. Replace fork
d. Install properly
e. Replace spring
a. Replace bearing
b. Install properly and lubricate fork fingers
at bearing
PEDAL STAYS ON FLOOR WHEN DISENGAGED
a. Bind in linkage
b. Springs weak in pressure plate
c. Over center spring too tight
HIGH PEDAL EFFORT
a. Bind in linkage
b. Driven plate worn
a. Lubricate and free up linkage
b. Replace
c. Loosen
a. Lubricate and free up linkage
b. Replace driven plate