clutch SUZUKI SWIFT 2000 1.G Transmission Service Repair Manual

CLUTCH 7C-1
6F1
6F2
6G
6H
6K
7A1
7B1
7C1
7D
7E
7C
8A
8B
8C
8D
8E
9
10
10A
10B
SECTION 7C
CLUTCH
CONTENTS
GENERAL DESCRIPTION .............................. 7C-2
DIAGNOSIS ..................................................... 7C-3
ON-VEHICLE SERVICE .................................. 7C-4
CLUTCH CABLE .......................................... 7C-4
CLUTCH PEDAL AND CLUTCH PEDAL
BRACKET .................................................... 7C-6
CLUTCH PEDAL HEIGHT ....................... 7C-7
CLUTCH PEDAL FREE TRAVEL ............ 7C-7UNIT REPAIR OVERHAUL ............................. 7C-8
CLUTCH COVER, CLUTCH DISC AND
FLYWHEEL.................................................. 7C-8
CLUTCH RELEASE SYSTEM ................... 7C-11
TIGHTENING TORQUE SPECIFICATION.... 7C-14
REQUIRED SERVICE MATERIAL................ 7C-14
SPECIAL TOOL ............................................ 7C-14

WARNING:
For vehicles equipped with Supplemental Restraint (Air Bag) System:
 Service on and around the air bag system components or wiring must be performed only by an
authorized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under
“General Description” in air bag system section in order to confirm whether you are performing ser-
vice on or near the air bag system components or wiring. Please observe all WARNINGS and “Ser-
vice Precautions” under “On-Vehicle Service” in air bag system section before performing service
on or around the air bag system components or wiring. Failure to follow WARNINGS could result in
unintentional activation of the system or could render the system inoperative. Either of these two
conditions may result in severe injury.
 Technical service work must be started at least 90 seconds after the ignition switch is turned to the
“LOCK” position and the negative cable is disconnected from the battery. Otherwise, the system
may be activated by reserve energy in the Sensing and Diagnostic Module (SDM).

7C-2 CLUTCH
GENERAL DESCRIPTION
The clutch is a diaphragm-spring clutch of a dry single disc type. The diaphragm spring is of a tapering-finger
type, which is a solid ring in the outer diameter part, with a series of tapered fingers pointing inward.
The disc, carrying four torsional coil springs, is positioned on the transmission input shaft with an involute spline
fit.
The clutch cover is secured to the flywheel, and carries the diaphragm spring in such a way that the peripheral
edge part of the spring pushes on the pressure plate against the flywheel (with the disc in between), when the
clutch release bearing is held back. This is the engaged condition of the clutch.
Depressing the clutch pedal causes the release bearing to advance and pushes on the tips of the tapered fin-
gers of the diaphragm spring. When this happens, the diaphragm spring pulls the pressure plate away from the
flywheel, thereby interrupting the flow of drive from flywheel through clutch disc to transmission input shaft.
1. Crankshaft 6. Diaphragm spring
2. Flywheel 7. Release bearing
3. Clutch disc 8. Input shaft bearing
4. Pressure plate 9. Input shaft
5. Clutch cover 10. Release shaft

CLUTCH 7C-3
DIAGNOSIS
Condition Possible Cause Correction
Slipping
Improper clutch pedal free travel Adjust free travel.
Worn or oily clutch disc facing Replace disc.
Warped disc, pressure plate or flywheel surface Replace disc, clutch cover or
flywheel.
Weakened diaphragm spring Replace clutch cover.
Rusted clutch cable Replace cable.
Dragging clutch
Improper clutch pedal free travel Adjust free travel.
Weakened diaphragm spring, or worn spring tip Replace clutch cover.
Rusted input shaft splines Lubricate.
Damaged or worn splines of transmission input shaft Replace input shaft.
Excessively wobbly clutch disc Replace disc.
Clutch facings broken or dirty with oil Replace disc.
Clutch vibration
Glazed (glass-like) clutch facings Repair or replace disc.
Clutch facings dirty with oil Replace disc.
Release bearing slides unsmoothly on input shaft
bearing retainerLubricate or replace input
shaft bearing retainer.
Wobbly clutch disc, or poor facing contact Replace disc.
Weakened torsion springs in clutch disc Replace disc.
Clutch disc rivets loose Replace disc.
Distorted pressure plate or flywheel surface Replace clutch cover or fly-
wheel.
Weakened engine mounting or loosened engine
mounting bolt or nutRetighten or replace mount-
ing.
Noisy clutch
Worn or broken release bearing Replace release bearing.
Input shaft front bearing worn down Replace input shaft bearing.
Excessive rattle of clutch disc hub Replace disc.
Cracked clutch disc Replace disc.
Pressure plate and diaphragm spring rattling Replace clutch cover.
Grabbing clutch
Clutch disc facings soaked with oil Replace disc.
Clutch disc facings excessively worn Replace disc.
Rivet heads showing out of facing Replace disc.
Weakened torsion springs Replace disc.

7C-4 CLUTCH
ON-VEHICLE SERVICE
CLUTCH CABLE
REMOVAL
1) Disconnect negative cable at battery.
2) Remove clutch cable joint nut (1).
3) Remove joint pin (2) from clutch release lever (3).
4) Disconnect cable hook (1) from clutch pedal (4).
5) Remove clutch cable (3) from bracket (5) by turning cable
cap (2) about 90° as shown.
1. Clutch cable 6. Pedal bracket
2. Release lever 7. Adjusting bolt
3. Joint pin
: Apply grease 99000-25010 to joint pin.8. Lock nut
4. Joint nut 9. Clutch cable hook
: Apply grease 99000-25010 to cable hook.
5. Clutch pedal Tightening torque

CLUTCH 7C-5
INSPECTION
Inspect clutch cable and replace it for any of the following condi-
tions.
Excessive cable friction
Frayed cable
Bent or kinked cable
Broken boots
Worn end
INSTALLATION
1) Apply grease to cable end hook and also joint pin before
installing cable.
“A” : Grease 99000-25010
2) Hook cable end with pedal by using screwdriver or long nose
pliers from cabin inside, then join inner cable wire joint pin in
release lever.
3) Install clutch cable (2) to bracket (3) by turning cable cap (1)
about 90° as shown.
4) Screw in joint nut and adjust free travel of pedal to specifica-
tion by turning nut.
5) Check clutch for proper function with engine running.
NOTE:
Take care that cable grommet (4) has specific installing
direction as shown in the figure.

7C-6 CLUTCH
CLUTCH PEDAL AND CLUTCH PEDAL BRACKET
1. Clutch cable hook
: Apply grease 99000-25010 to cable
hook.7. Pedal spring
: Apply grease 99000-25010 to inside surface
of spring.13. Adjusting bolt cap
2. Clutch pedal bracket 8. Pedal shaft spacer
: Apply grease 99000-25010 to outside sur-
face of spacer.14. Adjusting bolt
3. Bolt 9. Pedal shaft 15. Lock nut
4.
Nut10.
Clutch pedalTightening torque
5. Pedal shaft nut 11. Pedal pad
6. Pedal bush 12. Pedal return cushion

CLUTCH 7C-7
CLUTCH PEDAL HEIGHT
Adjust clutch pedal (1) height with adjusting bolt (2) located on
pedal bracket (3) so that clutch pedal height is same as brake
pedal (4) height.
Height difference
“a” : 0 mm (0 in.)
CLUTCH PEDAL FREE TRAVEL
1) Confirm that clutch pedal height is specification.
2) Depress clutch pedal (1), stop the moment clutch resistance
is felt, and measure distance (clutch pedal free travel). Free
travel should be within the following specification.
Pedal free travel
“b” : 15 – 20 mm (0.6 – 0.8 in.)
3) If free travel is out of specification, adjust it with cable joint
nut (1).
Release lever free travel (Reference)
“c” : 0 – 2 mm (0 – 0.08 in.)
4) After checking clutch pedal free travel, also check clutch for
proper function with engine running.

7C-8 CLUTCH
UNIT REPAIR OVERHAUL
CLUTCH COVER, CLUTCH DISC AND FLYWHEEL
REMOVAL
1) Dismount transmission assembly referring to Section 7A.
2) Hold flywheel stationary with special tool (A) and remove
clutch cover bolts (1), clutch cover (2) and clutch disc.
Special tool
(A) : 09924-17810
1. Flywheel7. Release bearing
: Apply grease 99000-25010 to joint of bearing and release
shaft and also bearing inside. (0.3 g)
2. Clutch release shaft seal
: Apply grease 99000-25010 to seal lip. (0.3 g)8. Clutch cover
3. Clutch release shaft No.2 bush
: Apply grease 99000-25010 to bush inside. (0.3 g)9. Clutch disc
4. Return spring 10. Clutch cover bolt
5. Clutch release shaft
Apply grease 99000-25010 to the end of release shaft arm. (0.3 g)Tightening torque
6. Clutch release shaft No.1 bush
: Apply grease 99000-25010 to bush inside. (0.3 g)Do not reuse.

CLUTCH 7C-9
3) Pull out input shaft bearing (1) by using special tool (B), and
wrench.
Special tool
(B) : 09921-26020
09930-30104
INSPECTION
Input Shaft Bearing
Check bearing (1) for smooth rotation and replace it if abnormality
is found.
Clutch Disc
Measure depth of rivet head depression, i.e. distance between
rivet head and facing surface. If depression is found to have
reached service limit at any of holes, replace disc assembly.
Rivet head depth
Standard : 1.65 – 2.25 mm (0.06 – 0.09 in.)
Service limit : 0.5 mm (0.02 in.)
Clutch Cover
1) Check diaphragm spring (1) for abnormal wear or damage.
2) Inspect pressure plate (2) for wear or heat spots.
3) If abnormality is found, replace it as assembly. Do not disas-
semble it into diaphragm and pressure plate.
Flywheel
Check surface contacting clutch disc for abnormal wear or heat
spots. Replace or repair as required.

7C-10 CLUTCH
INSTALLATION
1) Install flywheel (1) to crankshaft and tighten bolts (2) to spec-
ification.
Special tool
(A) : 09924-17810
Tightening torque
Flywheel bolts (a) : 70 N·m (7.0 kg-m, 50.5 lb-ft)
2) Using special tool, install input shaft bearing to flywheel.
Special tool
(B) : 09925-98210
3) Aligning clutch disc to flywheel center by using special tool,
install clutch cover (1) and bolts. Then tighten bolts to speci-
fication.
Special tool
(A) : 09924-17810
(C) : 09923-36320
Tightening torque
Clutch cover bolts (b) : 23 N·m (2.3 kg-m, 16.5 lb-ft) NOTE:
Before assembling, make sure that flywheel surface and
pressure plate surface have been cleaned and dried thor-
oughly.
NOTE:
 While tightening clutch cover bolts, compress clutch
disc with special tool (C) by hand so that disc cen-
tered.
 Tighten cover bolts little by little evenly in diagonal
order.