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CLUTCH
6 * 9
CLUTCH GRAB/CHATTER
Condition Found
Cause
Correction
1. Clutch disc facing covered with
oil, grease, or clutch fluid.
a) Oil leak at rear main or input
shaft seal.
b) Too much grease applied to
splines or disc and input shaft.
a) Correct leak and replace disc
(do not clean and reuse the
disc).
b) Apply lighter grease coating
to splines and replace disc (do
not clean and reuse the disc).
2. Clutch disc and/or cover
warped, or disc facings exhibit
unusual wear or appear to be
wrong type.
Incorrect or substandard parts.
Replace disc and/or cover with
correct parts.
3. Clutch master or slave cylinder
plunger dragging-binding.
a) Master or slave cylinder
components worn or corroded.
a) Replace both cylinders as
assembly (and reservoir).
4. No fault found with clutch
components.
a) Problem actually related to
suspension or driveline
component.
b) Engine related problem.
a) Further diagnosis required.
Check engine/transmission
mounts, propeller shafts and
U-joints, tires, suspension
attaching parts and other
driveline components as
needed.
b) Check EFI and igniton systems.
5. Partial engagement of clutch
disc (one side worn-opposite
side glazed and lightly worn).
a) Clutch pressure plate position
setting incorrect or modified.
b) Clutch) cover, spring, or release
fingers bent, distorted (rough
handling, improper assembly).
c) Clutch disc damaged or
distorted.
d) Clutch misalignment.
a) Replace clutch cover and disc.
b) Replace clutch cover and disc.
c)
Replace disc.
d) Check alignment and runout of
flywheel, disc, or cover and/or
clutch housing. Correct as
necessary.
J9006-23
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