1995 TOYOTA SUPRA wheel

TROUBLESHOOTING
Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely
cause of the problem. Check each part in order. If necessary, replace these parts.
CL±4CL±6CL±11See page
Parts Name
Trouble
Clutch grabs/chatters
Clutch noisy
Clutch slips
Clutch pedal spongy
Clutch does not disengage
Clutch pedal (freeplay out of adjustment)Pilot bearing (Worn or damaged)Release bearing (Worn, dirty or damaged)Engine mounting (loosen)Release cylinder cup (Damaged)master cylinder cup (Damaged)Clutch line (Air in line)Clutch disc (Dirty or burred)Clutch disc (Oily)Clutch disc (Worn out)Clutch disc torsion rubber (Damaged)Clutch disc (Out of true)Input shaft bearing (Worn or damaged)Clutch disc (Lining broken)Clutch disc (Runout is excessive)Clutch disc (Lack of spline grease)Diaphragm spring (Damaged)Clutch disc (Glazed)Diaphragm spring (Out of tip alignment)Pressure plate (Distortion)Flywheel (Distortion)
CL±17CL±8CL±9CL±11CL±17CL±11CL±17CL±11CL±17CL±11CL±17CL±11CL±17CL±11CL±17CL±11CL±17CL±11CL±17CL±11CL±17CL±15CL±21CL±11CL±17CL±15CL±20CL±11CL±17
± CLUTCHTROUBLESHOOTINGCL±3

CLUTCH PEDAL
CLUTCH PEDAL CHECK AND ADJUSTMENT
1. CHECK PEDAL HEIGHT
Pedal height from asphalt sheet:
146.2±156.2 mm (5.76±6.15 in.)
2. IF NECESSARY, ADJUST PEDAL HEIGHT
Loosen the lock nut and clutch switch until the height is cor-
rect. Tighten the lock nut.
HINT: Before rotating the clutch switch for pedal height ad-
justment, disconnect the clutch switch connector.
3. CHECK PEDAL FREEPLAY AND PUSH ROD PLAY
Push in on the pedal until the beginning of clutch resistance
is felt.
Pedal freeplay: 5.0±15.0 mm (0.197±0.591 in.)
Gently push on the pedal until the resistance begins to in-
crease a little.
Push rod play at pedal top:
1.0±5.0 mm (0.039±0.197 in.)
4. IF NECESSARY, ADJUST PEDAL FREEPLAY AND PUSH
ROD PLAY
(a) Loosen the lock nut and turn the push rod until the freeplay
and push rod play are correct.
(b) Tighten the lock nut.
(c) After adjusting the pedal freeplay, check the pedal height.
5. INSPECT FULL PEDAL STROKE
Full pedal stroke: 132.0±138.0 mm (5.20±5.43 in.)
6. INSPECT CLUTCH RELEASE POINT
(a) Pull the parking brake lever and install wheel stopper.
(b) Start the engine and idle the engine.
(c) Without depressing the clutch pedal, slowly shift the shift
lever into position until the gears contact.
(d) Gradually depress the clutch pedal and measure the stroke
distance from the point the gear noise stops (release point)
up to the full stroke end position.
Standard distance: 25 mm (0.98 in.) or more
(From pedal stroke end position to release point)
If the distance is not as specified, do the following operation.
wInspect pedal height.
wInspect push rod play and pedal freeplay.
wBleed the clutch line.
wInspect the clutch cover and disc. CL±4
± CLUTCHCLUTCH PEDAL

3. REMOVE CLUTCH DISC
4. REMOVE CLUTCH COVER ASSEMBLY
5. REMOVE CLUTCH RELEASE BEARING HUB
(a) Using a snap ring expander, remove the snap ring.
(b) Remove the release bearing hub, thrust cone spring and
plate washer.
6. REMOVE CLUTCH RELEASE BEARING
(a) Using a snap ring expander, remove the snap ring.
(b) Remove the release bearing, wave washer and plate washer.
CLUTCH PARTS INSPECTION AND
REPAIR
1. INSPECT CLUTCH DISC FOR WEAR OR DAMAGE
Using calipers, measure the rivet head depth.
Minimum rivet depth:
0.3 mm (0.012 in.)
If a problem is found, replace the clutch disc.
2. INSPECT CLUTCH DISC RUNOUT
Using a dial indicator, check the disc runout.
Maximum runout:
0.8 mm (0.031 in.)
If runout is excessive, replace the clutch disc.
3. INSPECT FLYWHEEL RUNOUT
Using a dial indicator, check the flywheel runout.
Maximum runout:
0.1 mm (0.004 in.)
If runout excessive, replace the flywheel. CL±12
± CLUTCHCLUTCH UNIT (2JZ±GTE)

6. INSPECT DIAPHRAGM SPRING FOR WEAR
Using calipers, measure the diaphragm spring for depth and
width of wear.
Maximum:
A: Depth 0.6 mm (0.024 in.)
B: Width 5.0 mm (0.197 in.)
If necessary, replace the clutch cover.
7. INSPECT RELEASE BEARING
Turn the bearing by hand while applying force in the axial
direction.
HINT: The bearing is permanently lubricated and requires no
cleaning or lubrication.
If a problem is found, replace the bearing together with the
hub.
8. INSPECT FLYWHEEL DAMPER FOR GREASE LEAKAGE
If grease has sprayed onto the clutch housing, replace the fly-
wheel assembly.
9. INSPECT FLYWHEEL DAMPER ROTATIONAL
FREEPLAY
(a) Install the 2 bolts to the secondary flywheel at diametrically
opposite positions.
(b) Holding both the bolts, turn the secondary flywheel clockwise
until it stops.
(c) Put matchmarks on the primary and secondary fly±wheels at
this position.
(d) Then rotate the primary flywheel counterclockwise by hand
until it stops.
(e) Put matchmarks on the primary flywheel at this position.
(f) M e a s u r e t h e c i r c u m f e r e n t i a l length between the 2
matchmarks on the secondary flywheel.
Standard:
105 mm (4.134 in.)
(g) Repeat the preceding steps (d) to (f) 4 times and if the
measurement is greater than the maximum length replace
the flywheel assembly.
(See page EG±122) CL±14
± CLUTCHCLUTCH UNIT (2JZ±GTE)

CLUTCH UNIT INSTALLATION
1. INSTALL CLUTCH DISC AND COVER ON FLY±WHEEL
(a) Insert SST in the clutch disc, and then set them and the cover
in position.
SST 09301±00110
(b) Align the matchmarks on the clutch cover and fly±wheel.
(c) Tighten the bolts evenly and gradually while pushing the SST.
Make several passes around the cover until it is snug.
(d) Torque the bolts on the clutch cover in the order shown.
Torque: 19 NVm (195 kgfVcm, 14 ftVlbf)
HINT: Temporarily tighten the No.1 and No.2 bolts.
2. CHECK DIAPHRAGM SPRING TIP ALIGNMENT
Using a dial indicator with roller instrument, check the dia-
phragm spring tip alignment.
Maximum non±alignment:
0.5 mm (0.020 in.)
If alignment is not as specified, use the SST to adjust the dia-
phragm spring tip alignment.
SST 09333±00013
3. REMOVE CLUTCH COVER AND CLUTCH DISC
4. INSTALL CLUTCH RELEASE FORK
(a) Install the wave washer and pin to release fork.
(b) Install a new E±ring.
5. APPLY MOLYBDENUM DISULPHIDE LITHIUM BASE
GREASE (NLGI NO.2)
(a) Apply release hub grease to these parts:
wRelease fork and hub contact point
wRelease fork and push rod contact point
wRelease fork pivot point
± CLUTCHCLUTCH UNIT (2JZ±GTE)CL±15

CLUTCH UNIT REMOVAL
1. REMOVE TRANSMISSION FROM ENGINE
(See page MT1±8)
HINT: Do not drain the transmission oil.
2. REMOVE CLUTCH COVER AND DISC
(a) Place matchmarks on the flywheel and clutch cover.
(b) Loosen each set bolt one turn at a time until spring tension
is released.
(c) Remove the set bolts, and pull off the clutch cover with the
clutch disc.
NOTICE: Do not drop the clutch disc.
3. REMOVE RELEASE BEARING, FORK AND BOOT FROM
TRANSMISSION
(a) Remove the clips, and pull off the bearing and hub.
(b) Remove the fork and boot.
CLUTCH PARTS INSPECTION AND
REPAIR
1. INSPECT CLUTCH DISC FOR WEAR OR DAMAGE
Using calipers, measure the rivet head depth.
Minimum rivet depth:
0.3 mm (0.012 in.)
If a problem is found, replace the clutch disc.
2. INSPECT CLUTCH DISC RUNOUT
Using a dial indicator, check the disc runout.
Maximum runout:
0.8 mm (0.031 in.)
If runout is excessive, replace the clutch disc.
3. INSPECT FLYWHEEL RUNOUT
Using a dial indicator, check the flywheel runout.
Maximum runout:
0.1 mm (0.004 in.)
If runout excessive, replace the flywheel. CL±18
± CLUTCHCLUTCH UNIT (2JZ±GE)

6. INSPECT DIAPHRAGM SPRING FOR WEAR
Using calipers, measure the diaphragm spring for depth and
width of wear.
Maximum:
A: Depth 0.6 mm (0.024 in.)
B: Width 5.0 mm (0.197 in.)
If necessary, replace the clutch cover.
7. INSPECT RELEASE BEARING
Turn the bearing by hand while applying force in the axial
direction.
HINT: The bearing is permanently lubricated and requires no
cleaning or lubrication.
If a problem is found, replace the bearing together with the
hub.
CLUTCH UNIT INSTALLATION
1. INSTALL CLUTCH DISC AND CLUTCH COVER ON
FLYWHEEL
(a) Insert the SST in the clutch disc, and then set them and the
cover in position.
SST 09301±00110
(b) Align the matchmarks on the clutch cover and fly±wheel.
(c) Tighten the bolts evenly and gradually while pushing SST.
Make several passes around the cover until it is snug.
(d) Torque the bolts on the clutch cover in order shown.
Torque: 19 NVm (195 kgfVcm, 14 ftVlbf)
HINT: Temporarily tighten the No.1 and No.2 bolts.
2. CHECK DIAPHRAGM SPRING TIP ALIGNMENT
Using a dial indicator with roller instrument, check the dia-
phragm spring tip alignment.
Maximum non±alignment:
0.5 mm (0.020 in.)
If alignment is not as specified, using SST adjust the dia-
phragm spring tip alignment.
SST 09333±00013 CL±20
± CLUTCHCLUTCH UNIT (2JZ±GE)

SERVICE SPECIFICATIONS
SERVICE DATA
 Pedal height from asphalt sheet 146.2±156.2 mm (5.76±6.15 in.) 
 Pedal freeplay
 
 5.0±15.0 mm (0.197±0.591 in.)
 Push rod play at pedal top 1.0±5.0 mm (0.039±0.197 in.)
 Full pedal stroke 132.0±138.0 mm (5.20±5.43 in.)
 Clutch release point from pedal full stroke end position 25 mm (0.98 in.) or more 
 Disc rivet head depth Maximum
 
 0.3 mm (0.012 in.)
 Disc runout Maximum 0.8 mm (0.031 in.)
 Diaphragm spring out non±alignment Maximum 0.5 mm (0.020 in.)
 Diaphragm spring finger wear Depth Maximum 0.6 mm (0.024 in.) 
 Diaphragm spring finger wear Width Maximum
 
 5.0 mm (0.197 in.)
 Flywheel runout Maximum 0.1 mm (0.004 in.)
 Flywheel damper rotational freeplay (2JZ±GTE) Standard 105 mm (4.134 in.)
TORQUE SPECIFICATIONS
 Part tightened NVm kgfVcm ftVlbf
 Clutch cover x Flywheel 19 195 14 
 Master cylinder set nut
 
 12
 


125
 
 9
 Release cylinder set bolt 12 120 9
 Clutch tube bracket (2JZ±GE) 4.9 50 43 in.Vlbf
 Clutch line union 15 155 11 
 Bleeder plug
 
 11
 


11 0
 
 8
 Flywheel set bolt 49 500 36
 Release fork support (2JZ±GTE) 25 260 18
 Release fork support (2JZ±GE) 39 400 29 Clutch housing cover LH (2JZ±GTE) 12 120 9
CL±22± CLUTCHSERVICE SPECIFICATIONS