NISSAN ALMERA 2001 Service Manual

CLUTCH
SECTION
CL
CONTENTS
PRECAUTIONS...............................................................2
Precautions ..................................................................2
PREPARATION...............................................................3
Special Service Tools ..................................................3
Commercial Service Tools ...........................................3
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING.....................................................4
NVH Troubleshooting Chart.........................................4
CLUTCH...................................................................4
CLUTCH SYSTEM...........................................................5
Components - RHD Model with QG Engine - .............5
Components - LHD Model with QG Engine -..............6
Components - RHD Model with YD Engine -..............7
Components - LHD Model with YD Engine - ..............8
Inspection and Adjustment ..........................................9
CLUTCH PEDAL INSPECTION...................................9
CLUTCH PEDAL ADJUSTMENT...............................10
AIR BLEEDING PROCEDURE..................................10
CLUTCH MASTER CYLINDER..................................... 11
Components............................................................... 11
Removal .....................................................................12
Installation ..................................................................12
Disassembly...............................................................12
Inspection...................................................................12
Assembly ...................................................................13
OPERATING CYLINDER...............................................14
Components...............................................................14
Removal .....................................................................14
Disassembly...............................................................14
Inspection...................................................................14
Assembly ...................................................................15
Installation ..................................................................15
PIPING...........................................................................16
Removal .....................................................................16Installation ..................................................................16
RS5F30A, RS5F70A
CLUTCH RELEASE MECHANISM...............................17
Components...............................................................17
Removal .....................................................................17
Inspection...................................................................17
Installation ..................................................................17
RS5F50A
CLUTCH RELEASE MECHANISM...............................20
Components...............................................................20
Removal .....................................................................20
Inspection...................................................................20
Installation ..................................................................20
CLUTCH DISC, CLUTCH COVER AND
FLYWHEEL....................................................................22
Components...............................................................22
Inspection and Adjustment ........................................22
CLUTCH DISC.........................................................22
CLUTCH COVER.....................................................23
FLYWHEEL.............................................................23
Installation ..................................................................23
SERVICE DATA AND SPECIFICATIONS (SDS).........24
Clutch Control System ...............................................24
Clutch Master Cylinder ..............................................24
Clutch Operating Cylinder .........................................24
Clutch Disc.................................................................24
Clutch Cover ..............................................................24
Clutch Pedal ..............................................................24

SBR820BA
PrecautionsNJCL0001+Recommended fluid is brake fluid ªDOT 4º. Refer to
MA-16, ªFluid and Lubricantsº.
+Never reuse drained brake fluid.
+Be careful not to splash brake fluid on painted areas.
+When removing and installing clutch piping, use Tool.
+Use new brake fluid to clean or wash all parts of master
cylinder and operating cylinder.
+Never use mineral oils such as gasoline or kerosene. It will
ruin the rubber parts of the hydraulic system.
WARNING:
After cleaning clutch disc, wipe it with a dust collector. Do not
use compressed air.
PRECAUTIONS
Precautions
CL-2

Special Service ToolsNJCL0002
Tool number
Tool nameDescription
GG94310000
Flare nut torque wrench
NT406
Removing and installing clutch piping
a: 10 mm (0.39 in)
KV30101600 (New)
KV30101000 (Former)
Clutch aligning bar
NT645
Installing clutch cover and clutch disc
(F30A and F70A)
a: 15.9 mm (0.626 in) dia.
b: 17.9 mm (0.705 in) dia.
c: 40 mm (1.57 in)
ST20630000
Clutch aligning bar
NT405
Installing clutch cover and clutch disc
(F50A)
a: 15.8 mm (0.622 in) dia.
b: 22.9 mm (0.902 in) dia.
c: 45.0 mm (1.772 in)
ST20050240
Diaphragm spring adjust-
ing wrench
NT404
Adjusting unevenness of diaphragm spring of
clutch cover
a: 150 mm (5.91 in)
b: 25 mm (0.98 in)
KV32101000
Pin punch
NT410
Removing and installing spring pin
a: 4 mm (0.16 in) dia.
Commercial Service ToolsNJCL0003
Tool name Description
1 Flare nut crowfoot
2 Torque wrench
NT360
Removing and installing clutch piping
a: 10 mm (0.39 in)
PREPARATION
Special Service Tools
CL-3

NJCL0004
NVH Troubleshooting ChartNJCL0004S01Use the chart below to help you find the cause of the symptom. The numbers indicate the order of the inspec-
tion. If necessary, repair or replace these parts.
CLUTCHNJCL0004S0101
Reference pageCL-10
CL-10
CL-11
CL-14
Refer to EM-137, ªRemoval and Installationº (QG engine model) and
EM-137, ªRemoval and Installationº (YD engine model).
CL-17 (RS5F30A, RS5F70A), CL-20 (RS5F50A)
CL-22
CL-22
CL-22
CL-22
CL-22
CL-22
CL-22
CL-22
CL-23
CL-23
CL-23
CL-23
SUSPECTED PARTS
(Possible cause)
CLUTCH PEDAL (Free play out of adjustment)
CLUTCH LINE (Air in line)
MASTER CYLINDER PISTON CUP (Damaged)
OPERATING CYLINDER PISTON CUP (Damaged)
ENGINE MOUNTING (Loose)
RELEASE BEARING (Worn, dirty or damaged)
CLUTCH DISC (Out of true)
CLUTCH DISC (Runout is excessive)
CLUTCH DISC (Lining broken)
CLUTCH DISC (Dirty or burned)
CLUTCH DISC (Oily)
CLUTCH DISC (Worn out)
CLUTCH DISC (Hardened)
CLUTCH DISC (Lack of spline grease)
DIAPHRAGM SPRING (Damaged)
DIAPHRAGM SPRING (Out of tip alignment)
PRESSURE PLATE (Distortion)
FLYWHEEL (Distortion)
SymptomClutch grabs/chatters 1 2 2 2 2 2
Clutch pedal spongy 1 2 2
Clutch noisy 1
Clutch slips 1 2 2 3 4 5
Clutch does not disen-
gage1234 55555 5667
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
CL-4

Components Ð RHD Model with QG Engine ÐNJCL0041
SCL843-A
1. Clutch pedal bracket
2. Pedal stopper bolt
3. Bush
4. Clutch pedal
5. Bush
6. Clevis pin
7. Assist spring
8. Return spring
9. Bush
10. Stopper rubber11. Bush
12. Snap pin
13. Fulcrum pin
14. Clutch master cylinder
15. Nipple
16. Reservoir cap
17. Reservoir tank
18. Hose clamp
19. Hose
20. Washer21. Clutch disc
22. Clutch cover
23. Withdrawal lever
24. Spacer
25. Operating cylinder
26. Clutch hose
27. Clutch lever
28. Spring pin
29. Release bearing
30. Release bearing spring
CLUTCH SYSTEM
Components Ð RHD Model with QG Engine Ð
CL-5

Components Ð LHD Model with QG Engine ÐNJCL0048
SCL844
1. Clutch pedal bracket
2. Clevis pin
3. Bush
4. Snap pin
5. Pedal stopper bolt
6. Clutch pedal
7. Clutch master cylinder
8. Nipple9. Reservoir cap
10. Reservoir tank
11. Hose clamp
12. Hose
13. Washer
14. Clutch disc
15. Clutch cover
16. Withdrawal lever17. Spacer
18. Operating cylinder
19. Clutch hose
20. Clutch lever
21. Spring pin
22. Release bearing
23. Release bearing spring
CLUTCH SYSTEM
Components Ð LHD Model with QG Engine Ð
CL-6

Components Ð RHD Model with YD Engine ÐNJCL0005
SCL845-A
1. Clutch pedal bracket
2. Pedal stopper bolt
3. Bush
4. Clutch pedal
5. Bush
6. Clevis pin
7. Assist spring
8. Bush
9. Stopper rubber
10. Bush11. Snap pin
12. Fulcrum pin
13. Clutch master cylinder
14. Nipple
15. Reservoir cap
16. Reservoir tank
17. Hose clamp
18. Hose
19. Washer20. Air bleeder screw
21. Withdrawal lever
22. Operating cylinder
23. Clutch hose
24. Clutch disc
25. Clutch cover
26. Clutch hose connector
27. Release bearing
28. Washer
CLUTCH SYSTEM
Components Ð RHD Model with YD Engine Ð
CL-7

Components Ð LHD Model with YD Engine ÐNJCL0049
SCL846
1. Clutch pedal bracket
2. Clevis pin
3. Bush
4. Snap pin
5. Pedal stopper bolt
6. Clutch pedal
7. Clutch master cylinder
8. Nipple9. Reservoir cap
10. Reservoir tank
11. Hose clamp
12. Hose
13. Washer
14. Air bleeder screw
15. Withdrawal lever16. Operating cylinder
17. Clutch hose
18. Clutch disc
19. Clutch cover
20. Clutch hose connector
21. Release bearing
22. Washer
CLUTCH SYSTEM
Components Ð LHD Model with YD Engine Ð
CL-8

Inspection and AdjustmentNJCL0006CLUTCH PEDAL INSPECTIONNJCL0006S03Pedal StrokeNJCL0006S0301Check clutch pedal stroke by using a 1±meter rule to measure the
total pedal stroke. Place end of rule onto the middle of the clutch
pedal pad. Place a book/clipboard on the driver's seat to set a ref-
erence point, ensure the book/clipboard does not move during
pedal depression. Mark (A) the pedal fully up position on the rule.
Depress the clutch pedal and mark (B) the rule again next to the
reference point on the book/clipboard. Measure the distance
between the marks (A and B), this is the actual pedal stroke (S).
Check the specified pedal stroke in the table, adjust actual pedal
stroke if necessary (refer toªCLUTCH PEDAL ADJUSTMENTº).
NOTE:
+Do not use steering wheel as a reference point, angle gives
incorrect reading.
+Ensure there is no interference between the floor carpet and
clutch pedal when fully depressed.
NCL058
SCL702
Pedal Free PlayNJCL0006S0302Check pedal free play, if out of specification refer toªCLUTCH
PEDAL ADJUSTMENTº
+Push on the clutch pedal until resistance is felt, and check the
distance the pedal moves.
CLUTCH SYSTEM
Inspection and Adjustment
CL-9

CLUTCH PEDAL ADJUSTMENTNJCL0006S04Pedal StrokeNJCL0006S04011. Loosen the pedal stopper bolt completely (so there is no con-
tact between pedal and stopper bolt).
2. Adjust pedal stroke to the specified value with the master cyl-
inder push rod.
3. Adjust the pedal stopper bolt until it is just in contact with the
pedal, then tighten the lock nut.
4. Once stroke is set to specification, adjust clutch pedal free
play.
Pedal stroke ªSº.
Refer to ªSDSº, CL-24.
Pedal Free PlayNJCL0006S04021. Adjust pedal free play to the specified value with the master
cylinder push rod.
2. Tighten lock nut of the master cylinder push rod.
+Push on the clutch pedal until resistance is felt, and check the
distance the pedal moves.
Pedal free play ªAº.
Refer to ªSDSº, CL-24.
SCL838
SCL839
AIR BLEEDING PROCEDURENJCL0006S021. Bleed air from clutch operating cylinder according to the fol-
lowing procedure.
+Carefully monitor fluid level at master cylinder during
bleeding operation.
a. Top up reservoir with recommended brake fluid.
b. Connect a transparent vinyl tube to air bleeder valve.
c. Slowly depress the clutch pedal to its full stroke and release it
completely. Repeat this operation several times at 2 to 3 sec-
onds intervals.
d. Open the air bleeder with the clutch pedal fully depressed.
e. Close the air bleeder.
f. Release the clutch pedal and wait at least 5 seconds.
g. Repeat steps c through f mentioned above, then air bubbles
will no longer appear at the damper in the brake fluid.
Air bleeder valve tightening torque:
: 5.9 - 9.8 N´m (0.6 - 1.0 kg-m, 52 - 86 in-lb)
CLUTCH SYSTEM
Inspection and Adjustment (Cont'd)
CL-10