521 / 1595
CLUTCH
5
IN THE VEHICLE
THE COMPONENT
CAUSES
REMEDY
6. Vibrations through the Pedal When Starting to De-clutch
Pedal vibration when
starting to De-clutch.
The fingers of diaphragm
are out of line and show
sign of damage.
The gearbox input shaft
has struck the fingers of
the diaphragm on fitting.
Carefully guide in the
gearbox to avoid any
knocks on fitting.
7. Metallic Sound with Pedal Fully Depressed
Metallic sounding noise
affected by engine
speed with pedal fully
depressed.
Signs of rubbing on the
diaphragm fingers, in the
area of contact with the
release bearing.
Incorrect clutch
adjustment excess
travel.
Systematically
check
the condition of cable
linkage and automatic
adjuster.
Always refer to vehicle
workshop manual for
correct adjustment.
8. Noisy Clutch
The clutch is noisy and
the pedal cab be slack.
A location lug on the
release bearing has
broken.
A lug has broken.
Another fault in the
mechanical operation of
the lug to break. For
example, the fork is out
of shape or wrongly
positioned at the time of
assembly.
Check the fork and
guide
sleeve
and
replace if signs wear
are present. Ensure
components
are
lubricated.
Carefully
check at the clutch
cable.
9. Permanent Loud Noise
Permanent loud noise.
The levers are badly
damaged
and
the
release bearing has
seized.
Incorrect clutch
adjustment causing
bearing failure.
Regularly check the
clutch
adjustment.
Always refer to manual
for correct method of
clutch adjustment.
10. Slipping and Juddering
The clutch slips and
eventually judders.
The pressure plate burn
marks.
Driver resting foot on
pedals. Incorrect clutch
adjustment.
Regularly check the
clutch
adjustment.
Always refer to manual
for correct method of
clutch
adjustment
Educate the driver.
11. Juddering after changing the Clutch
The clutch judders.
Circular grooves can be
seen on the friction
material on the flywheel
side.
The clutch has been
replaced
when
the
flywheel
has
been
previously scored.
Systematically
check
the condition of the
flywheel. Skim flywheel
if necessary.