Page 641 of 4264
CLUTCH 7C-39
INSPECTION AND REPAIR
Make the necessary adjustments, repairs, and part replacements if excessive wear or damage is discovered during
inspection.
206RS003
Cylinder Body
1. Clean the cylinder body.
2. Check the fluid return port for restrictions and clean it i
f
necessary.
206RS004
Piston and Piston Cup
1. Visually inspect the disassembled piston and piston cup for
excessive wear and damage.
2. Replace the inner parts with new parts shown in the
illustration.
206RS005
3. Measure the clearance between slave cylinder wall and
piston.
4. If the measured value exceeds the specified limit, the slave
cylinder assembly must be replaced.
mm(in)
Standard Limit
0.07 (0.0028) 0.15 (0.006)
Page 642 of 4264
7C-40 CLUTCH
REASSEMBLY
To reassemble, follow the disassembly steps in the reverse order, noting the following points:
206RS006
1. Before installing the parts, apply a thin coat of rubber
grease.
2. Install cup in groove in piston with the lip turned to the fron
t
of cylinder. Use care so as not to scratch the cylinder.
Page 643 of 4264
CLUTCH 7C-41
HYDRAULIC DAMPER CYLINDER
INSPECTION AND REPAIR
Make the necessary adjustments, repairs, and part replacements if excessive wear or damage is discovered during
inspection.
Visually check for oil leakage and other damage.
If oil leakage or other damage is discovered during the
inspection; the damper cylinder assembly must be replaced as
a unit.
Page 644 of 4264
7C-42 CLUTCH
TROUBLESHOOTING
Refer to this Section to quickly diagnose and repair clutch problems.
Each troubleshooting chart has three headings arranged from left to right.
(1) checkpoint (2) Trouble Cause (3) Countermeasure
This Section is divided into five sub-sections:
1. Clutch Slippage
2. Clutch Does Not Release Properly
3. Clutch Shudder
4. Clutch Noise
1) Clutch pedal Depressed (Clutch Disengaged)
2) Clutch pedal Not Depressed (Clutch Engaged)
5. Oil Leakage
Page 645 of 4264
CLUTCH 7C-43
1. CLUTCH SLIPPAGE
Checkpoint
Trouble Cause
Countermeasure
Adjust the push rod play
No push rod play in the master
cylinder
NG
Clutch pedal free play
Clean the related parts and/or
replace the facing
Replace the transmission front
cover oil seal
Clean the related parts and/or
replace the facing
Repair or replace the
transmission front cover
Defective transmission front
cover oil seal
Continued on the next page
Grease or oil adhering to the
facing
Too much grease
Transmission front cover
unevenly worn
Clean and grease the release
bearing
Release bearing
Insufficient grease on the front
cover contact surfaces
NG NG NG NG OK
OK
OK
Page 646 of 4264
7C-44 CLUTCH
Checkpoint Trouble Cause Countermeasure
Replace the release bearingRelease bearing broken
Clean the related parts and/or
replace the facing
Replace the crankshaft rear oil
seal
Defective crankshaft rear oil
seal
NG NG
OK OKGrease or oil adhering to the
facing
Clutch diaphragm springReplace the clutch pressure
plate assemblyWeak or broken clutch
diaphragm spring
Replace the driven plate
assemblyWorn facing
NG NG
OKFacing Continued from the previous page
Page 647 of 4264
CLUTCH 7C-45
2. CLUTCH DOES NOT RELEASE PROPERLY
Checkpoint Trouble Cause
Countermeasure
Adjust the push rod play
Too much push rod play in the
master cylinder
NG
Clutch pedal free play
Driven plate
Replace the driven plate
Driven plate warped or
unevenly worn
Hydraulic circuit
Bleed the hydraulic circuit
Air in the hydraulic circuit
OK
NG NG OK
Clean or repair the top gear
shaft spline
Replace the top gear shaft
Corrosion or step wear on the
top gear shaft spline
Pressure plate
Replace the pressure plate
assembly
Clean and grease the splined
contact surface
Pressure plate unevenly worn
Insufficient grease on the
spline contact surface of the
splined hub
OK NG NG NG
OK
Continued on the next page
Page 648 of 4264
7C-46 CLUTCH
Checkpoint Trouble Cause Countermeasure
Crankshaft pilot bearingReplace the pilot bearingTop gear shaft wobble is
causing pilot bearing wear
Repair or replace the flywheelFlywheel unevenly worn
NG NG OK
OKFlywheel Continued from the previous page