Ford COUGAR 1968 Shop Manual page 149

GROUP 5
-
Drive
Shaft And Clutch
with Rotunda Grease (ClAZ-19590-
B). Clean all excess grease from the
bore of the bearing hub. Excess
grease could be forced out by the
transmission bearing retainer, con-
taminating the clutch lining.
Hold the bearing inner race and
rotate the outer race while applying
pressure to it. If the bearing rotation
is rough or noisy, replace the bear-
ing.
Most release bearing failures are
caused by improper clutch pedal ad-
justments. If the clutch linkage does
not have enough free travel, the re-
lease bearing will constantly touch
the release fingers and will spin when-
ever the engine is running.
When installing a release bearing,
use the tool shown in Fig. 5.
Release bearing failure can be
caused by the release lever contact
points being out of plane. Check the
wear on the release bearing.assembly
where the release lever contacts it.
If one side of the assembly shows
more wear than the other, the re-
lease lever is bent out of plane, or
is not centering on the bracket on the
flywheel housing.
'
Misalignment between the engine
and transmission can cause release
bearing failure. Other symptoms of
misalignment are: transmission jump-
ing out of gear, especially third gear,
drive li?e vibration; excessive wear
in the pilot bushing, excessive clutch
disc spin time resulting in gear clash,
and excessive transmission gear wear.
surfacing
IS
not recommended. How-
ever, minor burn marks,' scores, or
r~dges may be removed. During the
resurfacing process, the .flatness of
the' pressure plate must be main-
tained. If the pressure plate is badly
heat-checked or deeply scored, replace
the pressure plate and cover assem-
bly. Clean the pressure plate and fly-
wheel surfaces with a suitable sol-
vent to be sure the surfaces are free
from any oil film.
D o not use cleaners
with petroleum base, and do not
immerse the pressure plate in the
solvent.
*
Place the plate on the floor, being
careful not to score or scratch the
surface. Force each individual finger
down, then release it quickly. If the
finger does not return quickly, a bind-
ing condition is indicated, and the
pressure plate should be replaced.
The pressure plate should be lubri-
cated with a lithium-base grease be-
tween the driving lugs and the edges
of the pressure plate. Depress the
pressure plate fingers fully, apply the
lubricant, and then move the fingers
up and down until the lubricant is
worked in. D o not apply excessive
lubricant.
CLUTCH DISC
Inspect the clutch disc facings for
oil or grease. Eliminate the source
of any oil or grease before replacing
the disc. An excessive amount of
grease in the crankshaft pilot bush-
ing or release bearing hub will find
its way to the disc facings. Too much
lubricant in the transmission or a
olugged transmission vent will force
leaks or oil leaks from the flywheel
mounting bolts can contaminate the
'clutch disc.
Inspect the clutch disc for worn
or loose facings. Check the disc for
distortion and for loose rivets at the
hub. Check for broken springs.
Springs loose enough to rattle will
not cause noise when the car is oper-
ating.
Replace the disc assembly if
any of these defects are present.
Be
especially careful when installing
a
new disc to avoid dropping i t or con-
taminating it with oil or grease.
PILOT B U S H I N G
Check the fit of the clutch. pilot
bushing in the bore of the crank-
shaft.
The bushing is pressed into the
crankshaft and should not be loose.
Inspect the inner surface of the bush-
ing for wear or a bell-mouthed con-
dition. If the bushing is worn or dam-
aged, replace the bushing with a new
service bearing. Refer to the applica-
ble engine for the replacement pro-
cedure.
Tool-T49P-7580-A
CLUTCH RELEASE
RELEASE
BEARING HUB
-
.
--
Inspect the surface of the pressure the transinission lubricant out the
plate for burn marks, $cores,' or
input'shaft .and onto the disc facings.
FIG.
5-lnstalling Clutch Release
ridges. Generally, pressure plate re- Also, rear main bearing oil seal Bearing o r Hub