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WORKSHOP MANUAL
TF SERIES
CLUTCH
SECTION 7C
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CLUTCH 7C-1
SECTION 7C
CLUTCH
TABLE OF CONTENTS
PAGE
Main Data and Specifications ......................................................................................... 7C- 2
General Description......................................................................................................... 7C- 3
Torque Specification ....................................................................................................... 7C-15
Servicing........................................................................................................................... 7C-19
Clutch................................................................................................................................ 7C-21
Removal and Installation ............................................................................................ 7C-21
Inspection and Repair................................................................................................. 7C-26
Clutch Control .................................................................................................................. 7C-32
Removal and Installation ............................................................................................ 7C-32
Master Cylinder ................................................................................................................ 7C-33
Disassembly ................................................................................................................ 7C-33
Reassembly ................................................................................................................. 7C-34
Slave Cylinder (4J, C24SE) ............................................................................................. 7C-35
Disassembly ................................................................................................................ 7C-35
Inspection and Repair................................................................................................. 7C-36
Reassembly ................................................................................................................. 7C-37
Slave Cylinder (6VE1) ...................................................................................................... 7C-38
Disassembly ................................................................................................................ 7C-38
Inspection and Repair................................................................................................. 7C-39
Reassembly ................................................................................................................. 7C-40
Hydraulic Damper Cylinder ............................................................................................. 7C-41
Inspection and Repair................................................................................................. 7C-41
Troubleshooting .............................................................................................................. 7C-42
Special Service Tool ........................................................................................................ 7C-51
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7C-2 CLUTCH
MAIN DATA AND SPECIFICATIONS
ENGINE 6VE1
4JA1-T(L) 4JA1-TC
4JH1-TC C24SE
Clutch type Dry single plate with diaphragm
Size mm (in)260 (10.24) 225 (8.86) 250 (9.84) 240 (9.45)
Clamping force kg(lb)735 (1621) 500 (1103) 640 (1411) 560 (1235)
(N)(7200) (4900) (6300) (5500)
Pressure plate
Outside diameter mm(in)260 (10.24) 225 (8.86) 250 (9.84) 240 (9.45)
Inside diameter mm(in)170 (6.69) 150 (5.906) 160 (6.299) 160 (6.299)
Driven plate
Thickness mm(in)
at free 8.8 (0.346) 8.4 (0.331) 8.3 (0.327) 8.7 (0.342)
at compressed 8.2 (0.323) 7.8 (0.307) 7.8 (0.307) 8.0 (0.315)
Clutch Cont. type Hydraulic
Pedal free play mm(in)5.0-15.0 (0.2-0.6)
Master cylinder
Bore
Stroke mm(in)15.87
35 (0.625
1.38)
Slave cylinder
Bore
Stroke mm(in)22.22
18.9
(0.875
0.744) 19.05
23
(0.749
0.906) 20.64
23
(0.813
0.906) 19.05
23
(0.749
0.906)
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CLUTCH 7C-3
GENERAL DESCRIPTION
HYDRAULIC CONTROL TYPE
PUSH TYPE CLUTCH (4J C24SE)
PULL TYPE CLUTCH (6VE1)
A07RW046
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7C-4 CLUTCH
The clutch assembly consists of the pressure plate, the clutch cover, the diaphragm spring pivot pin and the driven
plate assembly.
The clutch pedal is connected to the release bearing through the shift fork.
The driven plate assembly is installed between the flywheel and the pressure plate.
For 4J series engine and HEC engine models, the push-type clutch is used.
Diaphragm spring pressure holds the driven plate against flywheel and the pressure plate to provide the friction
necessary to engage the clutch.
Depressing the clutch pedal moves the shift fork against the release bearing.
The release bearing forces the diaphragm to overcome the force of the diaphragm spring and separate the driven
plate from the flywheel and pressure plate to disengage the clutch.
For 6VE1 engine model, the pull-type clutch is used. The pull-type clutch is disengaged by pulling the release lever
(release bearing) to disengage the pressure plate.
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CLUTCH 7C-5
MASTER CYLINDER
C24SE/RHD
RTW47CSF000501
C24SE, 4J/LHD
RTW47CSF000201
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7C-6 CLUTCH
6VE1/LHD
RTW47CSF000101
6VE1, 4J/RHD
RTW47CSF000401
The master cylinder converts mechanical energy into hydraulic energy.
Depressing the clutch pedal causes the push rod to move against the piston to close the return port.
Clutch fluid is forced out of the master cylinder.
Releasing the clutch pedal causes the return spring to force the piston back to its original position.
The return port is opened and the clutch fluid flows back into the fluid reservoir.
Quickly releasing the clutch pedal will cause the fluid pressure at the return spring side to be lower than the fluid
pressure at the push rod side.
This allows the fluid at the push rod side to quickly flow to the return spring side through a port in the piston head.
This equalizes the pressure at both sides of the piston.