Table of Contents
Advertisement
6 - 8
CLUTCH
•
IMPROPER CLUTCH RELEASE
Condition Found
Cause
Correction
1. Clutch disc warped.
New disc not checked for axial
runout before installation.
Replace disc. Be sure runout of new
disc is less than .5 mm (.020 in.).
2. Clutch disc binds on input
shaft splines.
a) Clutch disc hub splines
damaged during installation.
b) Input shaft splines rough,
damaged.
c)
Corrosion, rust formations on
splines of disc and input shaft.
Clean, smooth and lubricate disc
and shaft spines. Replace disc
and/or input shaft if splines are
severely damaged.
3. Clutch disc rusted to flywheel
and/or pressure plate.
Occurs in vehicles stored, or not
driven for extended periods
of time. Also occurs after steam
cleaning if vehicle is not used for
extended period.
Remove clutch cover and disc. Sand
rusted surfaces clean with 180 grit
paper. Replace disc cover, and
flywheel if corrosion is severe.
4. Clutch disc facing sticks to
flywheel.
Vacuum may form in pockets over
rivet heads in clutch disc. Occurs as
clutch cools down after use.
Drill 1/16 inch diameter hole
through rivets and scuff sand disc
facing With 180 grit paper.
5. Clutch disc too thick.
Wrong disc installed.
Replace disc.
6. Pilot bushing seized or loose.
a) Bushing cocked during
installation.
b) Bushing defective.
c)
Bushing not lubricated.
d) Clutch misalignment.
a), b), c), d) Lubricate and install
hew bushing. Check and
correct any misalignment.
7. Clutch will not disengage
properly.
a) Low clutch fluid level.
b) Clutch cover loose.
c) Wrong clutch disc.
d) Disc bent, distorted during
installation.
e) Clutch cover diaphragm spring
bent or wraped during
transmission instalation.
f)
Clutch disc installed
backwards.
g) Release fork bent or fork pivot
is loose or damaged.
h) Clutch master or slave cylinder
fault.
a) Top off reservoir and check for
leaks.
b) Tighten bolts.
c) Install correct disc.
d) Repalce disc.
e) Replace cover.
f)
Remove and reinstall disc
correctly. Be sure disc side
marked "to flywheel" is
actually toward flywheel.
g) Replace fork and pivot if worn
or damaged.
h) Replace master and slave
cylinder as assembly.
J9006-22
Advertisement
Table of Contents
