User Guide

EXEDY Globalparts Corporation • 800.346.6091 • www.exedyusa.com
EXEDY Globalparts Corporation • 800.346.6091 • www.exedyusa.com
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Malfunctions of Clutch Discs Malfunctions of Clutch Discs
PROBLEM: Contact mark on the teeth of spline and the end
of hub.
SYMPTOM: Dicult to disengage gears.
CAUSE: Excessive force to t a main drive shaft
causes this problem during reinstallation of
transmission.
SOLUTION: During the installation of transmission, align
drive line;
-height
-angle
-spline teeth
then t without excessive force.
PROBLEM: Burrs at the end of hub due to uneven wear on
the spline teeth.
SYMPTOM: Dicult to disengage gears.
CAUSE: Misalignment between engine crank shaft
and transmission main drive shaft causes this
problem during installation of transmission.
SOLUTION: 1. Replace deteriorated pilot bearing or bush.
2. Reinstall parts after removal of contamination
or scratch on the mating surface of bell housing.
PROBLEM: Damaged torsion springs.
SYMPTOM: Unable to disengage gears/Noisy clutch.
CAUSE 1. When engine torque is higher than clutch
torque, this misapplication causes springs to
deteriorate.
2. Misalignment between engine crank shaft
and transmission main drive shaft causes this
problem during installation of transmission.
SOLUTION: 1. Choose and t appropriate EXEDY clutch to
suit the application.
2. Reinstall deteriorated pilot bearing or bush
parts after removal of contamination or scratch
on the mating surface of bell housing.
PROBLEM: Damaged facing material.
SYMPTOM: Dicult to disengage gears.
CAUSE: Clutch disc has been dropped possibly during
installation or damaged in transit. Bulged clutch
facing to contact ywheel causes this problem.
SOLUTION: Always check before installation that is intact.
Treat parts carefully.
PROBLEM: Oily facings.
SYMPTOM: Slipping clutch/shuddering juddering clutch.
CAUSE: Excessive grease or low viscosity grease causes
this problem.
Melted grease on friction material will aect the
friction coecient of disc facing causing facing
failure.
SOLUTION: Lightly grease spline, wipe o excessive grease
after tentative installation and ensure there is
smooth sliding of clutch disc on main drive shaft.
Use grade of grease specied by vehicle
manufacturer.
PROBLEM: Broken facings.
SYMPTOM: Slipping clutch/Shudder/Judder/Noisy clutch
unable to drive.
CAUSE: Following factors lead to high temperature of
friction surface, resulting in this problem.
1. Driving with a foot on a clutch pedal
2. Overloading vehicle
3. Improper starting gear
4. Clutch pedal height or free play maladjustment
5) Oil/grease contamination.
SOLUTION:
1.~ 3. Driver education.
4. Adjust pedal free play according to service
manual.
*Do not over grease input shaft or disc during installation.
Damaged torsion springs