2002 SUZUKI GRAND VITARA Shaft

YH4
GRAND
VITARA
AUTOMATIC TRANSMISSION (4 A / T) 7B1-65
1. Drain plug
2. Propeller shaft
1. Oiler (with transmission fluid)
2. Solenoid valve
3. BatteryA: Hole (Should be dry)
B: Exhausting fluid Terminal Arrangement of PCM Coupler
(Viewed from harness side)
WITH BATTERY VOLTAGE WITHOUT BATTERY VOLTAGE
H25 Engine
Shift solenoid valve ± A (#1)C51-1-6
Shift solenoid valve ± B (#2)C51-1-1
TCC (Lock-up) solenoid valveC51-1-2
REMOVAL
1) Pull out dipstick and lift up vehicle.
2) With engine cooled, remove drain plug from oil pan and drain
A / T fluid.
3) Install drain plug with gasket.
Tightening Torque
(a): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
4) Remove exhaust pipe bracket and disconnect front propeller
shaft from front differential (if equipped).
5) Remove oil pan bolts.
6) Remove oil pan.
7) Remove oil tubes.
8) Remove solenoid valve No.1 (shift solenoid valve A and B) or so-
lenoid valve No.2 (TCC solenoid valve).
OPERATION CHECK
Whenever shift solenoid valves and TCC (lock-up) solenoid valve
are removed from transmission, verify their valve function physical-
ly before they are reinstalled.
1) Apply oiler to solenoid valve and give compression by hands
and then check to be sure that transmission fluid from oiler does
not come out of holes in solenoid valve when battery voltage is
not conducted.
2) Under the same conditions as above, conduct battery voltage
and then make sure that fluid comes out with vigor.
NOTE:

If fluid does not come out with vigor in above step 2 in-
spection, do not re-use that solenoid valve.

Figure at the left shows shift solenoid valve check.
Check TCC solenoid valve also in the same way.

YH4
GRAND
VITARA
AUTOMATIC TRANSMISSION (4 A / T) 7B1-75
1. Drain plug
2. Filler and level plug
1. Drain plug
2. Front propeller shaft
1. Match marks
1. Right side transmission stiffener (if equipped)
G16 / J20
ON LIFT
1) Drain transfer oil for 4WD vehicle or A / T fluid for 2WD vehicle.
NOTE:
If 4WD automatic transmission is overhauled later on,
draining A / T fluid at this point will facilitate work.
Tightening Torque
(a): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
2) Before removing propeller shaft, give match marks on joint
flange and propeller shaft as shown in left figure.
3) Remove universal joint flange bolts and take out rear propeller
shaft.
4) Likewise, take out front propeller shaft. (if equipped)
5) Remove nut from the end of select cable and bracket to set
cable free.
6) Remove select cable bracket by removing its 2 bolts.
7) Remove exhaust No.1 and No.2 pipe.
8) Remove transmission stiffener (right side) if equipped.
9) Unclamp and disconnect oil cooler hoses from pipes.
NOTE:
To avoid leakage of transmission fluid, plug open ends of
oil cooler pipes and hoses right after they are discon-
nected.
10) Remove torque converter housing lower plate.
11) Holding drive plate stationary with special tool or the like, re-
move torque converter mounting bolts with wrench.
Special Tool (only for G16 / J20)
(A): 09927-56010

YH4
GRAND
VITARA
1. Crankshaft
2. Flywheel
3. Clutch disc
4. Pressure plate
5. Clutch cover
6. Diaphragm spring
7. Release bearing
8. Input shaft bearing
9. Input shaft
10. Operating cylinder
11. Clutch housing
12. Release fork
7C1-2 CLUTCH
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 torsional coil springs, is positioned
on the transmission input shaft with an involute spline
fit.
The clutch cover is secured to the flywheel, and car-
ries the diaphragm spring in such a way that the pe-
ripheral edge part of the spring pushes on the pres-
sure plate against the flywheel (with the disc in be-
tween), when the clutch release bearing is held back.
This is the engaged condition of the clutch.Depressing the clutch pedal causes the release bear-
ing to advance and pushes on the tips of the tapered
fingers 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 transmis-
sion input shaft.
GENERAL DESCRIPTION

YH4
GRAND
VITARA
CLUTCH 7C1-3
DIAGNOSIS
ConditionPossible CauseCorrection
Slipping
Improper clutch pedal free travel.

Worn or oily clutch disc facing.

Warped disc, pressure plate or flywheel
surface.

Weakened diaphragm spring.

Master cylinder piston or seal cup not returning.Bleed air or replace master
cylinder.
Replace disc.
Replace disc, clutch cover or
flywheel.
Replace clutch cover.
Repair master cylinder.
Dragging clutch
Improper clutch pedal free travel.

Weakened diaphragm spring, or worn spring tip.

Rusted input shaft splines.

Damaged or worn splines of transmission
input shaft.

Excessively wobbly clutch disc.

Clutch facings broken or dirty with oil.

Fluid leakage.Bleed air or replace master
cylinder.
Replace clutch cover.
Lubricate.
Replace input shaft.
Replace disc.
Replace disc.
Repair or replace.
Clutch vibration
Glazed (glass-like) clutch facings.

Clutch facings dirty with oil.

Release bearing slides unsmoothly on input
shaft bearing retainer.

Wobbly clutch disc, or poor facing contact.

Weakened torsion springs in clutch disc.

Clutch disc rivets loose.

Distorted pressure plate or flywheel surface.

Weakened or loosened engine mounting
bolt or nut.Repair or replace disc.
Replace disc.
Lubricate or replace input
shaft bearing retainer.
Replace disc.
Replace disc.
Replace disc.
Replace clutch cover or flywheel.
Retighten or replace mounting.
Noisy clutch
Worn or broken release bearing.

Input shaft front bearing worn down.

Excessive rattle of clutch disc hub.

Cracked clutch disc.

Pressure plate and diaphragm spring rattling.Replace release bearing.
Replace input shaft bearing.
Replace disc.
Replace disc.
Replace clutch cover.
Grabbing clutch
Clutch disc facings soaked with oil.

Clutch disc facings excessively worn.

Rivet heads showing out of facing.

Weakened torsion springs.Replace disc.
Replace disc.
Replace disc.
Replace disc.

YH4
GRAND
VITARA
7C1-10 CLUTCH
(B)1
12
(A)
1. Input shaft bearing
2. Flywheel
3. Clutch disc
4. Clutch cover
5. Bolt
6. Release bearing
7. Clutch release fork
8. Boot
9. Clip
10. Clutch release fork support
1. Bolt
2. Clutch cover
1. Input shaft bearing
UNIT REPAIR
CLUTCH COVER, CLUTCH DISC AND FLYWHEEL
DISMOUNTING / REMOUNTING
Refer to SECTION 7A ªDismounting / Remounting of Trans Unitº.
REMOVAL
1) Hold flywheel stationary with special tool (A) and remove clutch
cover bolts, clutch cover and clutch disc.
Special Tool
(A): 09924-17810
2) Pull out input shaft bearing by using special tool (B) and wrench.
Special Tool
(B): 09917-58010 (G16 engine)
(B): 09923-73210 (J20 and H25 engines)
3) Remove release bearing and release fork.

YH4
GRAND
VITARA
CLUTCH 7C1-11
INSPECTION
Input Shaft Bearing and Release Bearing
Check bearing 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: 1.6 mm (0.06 in.)
Service limit: 0.5 mm (0.02 in.)
Clutch Cover
1) Check diaphragm spring for abnormal wear or damage.
2) Inspect pressure plate 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.

YH4
GRAND
VITARA
7C1-12 CLUTCH
(C)
1
ªAº, (a)1
2
1. Flywheel
2. Bolt
1. Clutch cover
INSTALLATION
NOTE:
Before assembling, make sure that flywheel surface and pres-
sure plate surface have been cleaned and dried thoroughly.
1) Install flywheel to crankshaft and tighten bolts to which sealant
is applied to specification.
Special Tool
(A): 09924-17810
ªAº: Sealant 99000-31110
Tightening Torque
(a): 78 N
.m (7.8 kg-m, 56.5 lb-ft) (G16 engine)
(a): 70 N
.m (7.0 kg-m, 50.5 lb-ft) (J20 and H25 engines)
2) Using special tool (B), install input shaft bearing to flywheel.
Special Tool
(B): 09925-98210
3) Aligning clutch disc to flywheel center by using special tool (C),
install clutch cover and bolts. Then tighten bolts to specification.
NOTE:

While tightening clutch cover bolts, compress clutch disc
with special tool (C) by hand so that disc centered.

Tighten cover bolts little by little evenly in diagonal order.
Special Tools
(A): 09924-17810
(C): 09923-36330 (G16 engine)
(C): 09923-36320 (J20 and H25 engines)
Tightening Torque
(b): 23 N
.m (2.3 kg-m, 16.5 lb-ft)

YH4
GRAND
VITARA
CLUTCH 7C1-13
1. Release fork
2. Clip
3. Input shaftªBº
ªBº
ªAº 3
2
1
1
2
4) Install clip to release fork and apply grease.
ªAº: Grease 99000-25010
Then install release fork and release bearing as shown in figure.
5) Slightly apply grease to input shaft and install clutch disc. Then
join transmission transfer assembly with engine. Refer to SEC-
TION 7A.
ªBº: Grease 99000-25210
NOTE:
Turn crankshaft with wrench from front while inserting
transmission input shaft to clutch disc until splines mesh.