Nissan Sentra 2000 Owner's Manual

MANUAL TRANSAXLE

CONTENTS

PREPARATION ...............................................................2

Special Service Tools ..................................................2

Commercial Service Tools...........................................4

NOISE, VIBRATION AND HARSHNESS (NVH)

TROUBLESHOOTING.....................................................6

NVH Troubleshooting Chart.........................................6

DESCRIPTION.................................................................7

Cross-sectional View...................................................7

DOUBLE-CONE SYNCHRONIZER

ON-VEHICLE SERVICE ..................................................9

Replacing Oil Seal.......................................................9

DIFFERENTIAL OIL SEAL STRIKING ROD OIL SEAL

Position Switch Check...............................................10

BACK-UP LAMP SWITCH PNP SWITCH

Viscous Coupling Check............................................11

REMOVAL AND INSTALLATION.................................12

Removal.....................................................................12

Installation..................................................................14

- QG ENGINE -

Installation..................................................................15

- SR ENGINE -

OVERHAUL ...................................................................16

Transaxle Gear Control.............................................16

Case Components.....................................................17

Gear Components .....................................................18

Shift Control Components .........................................19

Final Drive Components............................................20

DISASSEMBLY..............................................................21

Transaxle Case..........................................................21

Clutch Housing ..........................................................23

REPAIR FOR COMPONENT PARTS...........................27

Input Shaft and Gears...............................................27

DISASSEMBLY INSPECTION ASSEMBLY

Mainshaft and Gears.................................................32

DISASSEMBLY

..........................................................10

........................................................14

........................................................15

........................................................27

...........................................................28

.............................................................29

........................................................32

..........................................9

........................................10

..............................8

.........................................9

SECTION

INSPECTION ASSEMBLY

Final Drive..................................................................40

PRE-INSPECTION DISASSEMBLY INSPECTION ASSEMBLY

Shift Control Components .........................................46

INSPECTION

ASSEMBLY....................................................................47

Clutch Housing ..........................................................47

Transaxle Case..........................................................51

SERVICE DATA AND SPECIFICATIONS (SDS).........56

General Specifications...............................................56

TRANSAXLE FINAL GEAR

Gear End Play...........................................................57

Clearance Between Baulk Ring and Gear................57

3RD, 4TH, 5TH, REVERSE BAULK RING 1ST AND 2ND BAULK RING

Available Snap Rings ................................................57

SNAP RING

Available C-rings........................................................58

4TH INPUT GEAR C-RING 5TH INPUT GEAR REAR C-RING MAINSHAFT C-RING

Available Adjusting Shims .........................................59

INPUT SHAFT REAR BEARING ADJUSTING SHIM MAINSHAFT ADJUSTING SHIM MAINSHAFT REAR BEARING ADJUSTING SHIM

Available Thrust Washer............................................61

MAINSHAFT THRUST WASHER

Available Washers.....................................................61

DIFFERENTIAL SIDE GEAR THRUST WASHER

Available Shims - Differential Side Bearing

Preload and Adjusting Shim ......................................62

BEARING PRELOAD DIFFERENTIAL SIDE BEARING ADJUSTING SHIMS

...........................................................33

.............................................................35

........................................................41

...........................................................42

.............................................................43

...........................................................46

...........................................................56

.............................................................57

......................................................................59

....................................................................62

...................................................40

..................57

....................................57

.......................................58

.............................58

...............................................58

................................60

......60

...............................61

........61

...............................................62

IDX

Special Service Tools

PREPARATION

Special Service Tools

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Tool number (Kent-Moore No.) Tool name

KV38107700 (J39027) Preload adapter

KV38106000 (J34291-B) Height gauge adapter (differential side bearing)

KV32101000 (J25689-A) Pin punch

Description

NT087

NT418

Measuring turning torque of final drive assembly Measuring total turning torque Measuring clearance between side gear and differential case with washer Selecting differential side bearing adjusting shim [Use with KV38106000 (J34291-B).]

Selecting differential side bearing adjusting shim [Use with KV38107700 (J39027).]

a: 140 mm (5.51 in) b: 40 mm (1.57 in) c: 16 mm (0.63 in) dia. d: M8 × 1.25P

Removing and installing retaining pin Removing and installing lock pin Removing selector shaft Removing welch plug

a: 4 mm (0.16 in) dia.

NIMT0001

KV31100300 (J25689-A) Pin punch

ST30031000 (J22912-O1) Puller

ST30021000 (J22912-O1) Puller

NT410

NT411

Removing and installing retaining pin

a: 4.5 mm (0.177 in) dia.

Removing 3rd, 5th input gear Removing 3rd & 4th and 5th & Rev synchronizer hub Removing mainshaft rear bearing Removing 2nd gear, 5th gear bush Removing 1st & 2nd synchronizer hub, 1st and 4th main gear Removing and installing differential side bearing

a: 90 mm (3.54 in) dia. b: 50 mm (1.97 in) dia.

Removing input shaft front and rear bearing Installing input shaft front and rear bearing Installing 5th input gear, 3rd main gear and 4th main gear Installing 1st & 2nd, 3rd & 4th and 5th & Rev synchronizer hub Installing 2nd gear bush, 5th gear bush, Rev gear bush Installing mainshaft rear bearing

a: 110 mm (4.33 in) dia. b: 68 mm (2.68 in) dia.

MT-2

Tool number (Kent-Moore No.) Tool name

PREPARATION

Special Service Tools (Cont’d)

Description

ST33061000 (J8107-2) Drift

ST33290001 (J34286) Puller

ST33230000 (J25805-O1) Drift

ST30720000 (J25405) Drift

NT073

NT414

NT084

Removing differential side bearing

a: 39 mm (1.54 in) dia. b: 29.5 mm (1.16 in) dia.

쐌 Removing idler gear bearing outer race

a: 250 mm (9.84 in) b: 160 mm (6.30 in)

Removing differential oil seal Installing differential side bearing

a: 51 mm (2.01 in) dia. b: 28.5 mm (1.122 in) dia.

Installing differential side bearing outer race (F70A and clutch housing side of F70V)

a: 77 mm (3.03 in) dia. b: 55.5 mm (2.185 in) dia.

ST22350000 (J25678-O1) Drift

ST22452000 (J34335) Drift

ST37750000 (J34335) Drift

NT115

NT065

Installing input shaft front and rear bearing

a: 34 mm (1.34 in) dia. b: 28 mm (1.10 in) dia.

Installing 3rd and 4th main gear Installing 5th gear bush Installing 5th & Rev synchronizer hub Installing Rev gear bush Installing mainshaft rear bearing

a: 45 mm (1.77 in) dia. b: 36 mm (1.42 in) dia.

Installing input shaft oil seal Installing 5th synchronizer Installing mainshaft rear bearing Installing 5th main gear Installing 3rd & 4th synchronizer hub Installing striking rod oil seal Installing clutch housing dust seal

a: 40 mm (1.57 in) dia. b: 31 mm (1.22 in) dia.

IDX

MT-3

Special Service Tools (Cont’d)

Tool number (Kent-Moore No.)

Description

Tool name

PREPARATION

ST30621000 (J35869) Drift

NT073

ST30611000 (J25742-1) Drift handle

NT419

Tool name Description Drift

NT065

Drift

Installing differential side bearing outer race [Use with ST30611000 (J25742-1).] (F70A and clutch housing side of F70V)

a: 79 mm (3.11 in) dia. b: 59 mm (2.32 in) dia.

Installing differential side bearing outer race [Use with ST30621000 (J35869).]

a: 15 mm (0.59 in) b: 335 mm (13.19 in) c: 25 mm (0.98 in) dia. d: M12 × 1.5P

Commercial Service Tools

Installing differential side bearing inner race (F70A and except viscous coupling side of F70V)

a: 56 mm (2.20 in) dia. b: 50.5 mm (1.988 in) dia.

Installing differential oil seal (F70V transaxle case side)

a: 94 mm (3.70 in) dia. b: 72 mm (2.83 in) dia.

NIMT0002

Drift

NT065

Installing differential side bearing outer race (F70V viscous coupling side)

a: 104 mm (4.09 in) dia. b: 98 mm (3.86 in) dia.

NT065

Installing differential side bearing inner race (F70V viscous coupling side)

a: 91 mm (3.58 in) dia. b: 81 mm (3.19 in) dia.

NT065

Removing input shaft rear bearing Removing mainshaft rear bearing

a: 22 mm (0.87 in) dia. b: 16 mm (0.63 in) dia.

NT065

Installing differential oil seal (Transaxle case side of F70A and clutch housing side of F70V)

a: 58 mm (2.28 in) dia. b: 50 mm (1.97 in) dia.

NT065

MT-4

Tool name Description

PREPARATION

Commercial Service Tools (Cont’d)

Drift

NT065

Installing differential oil seal (Clutch housing side of F70A)

a: 54 mm (2.13 in) dia. b: 50 mm (1.97 in) dia.

Installing 2nd gear bush

a: 38 mm (1.50 in) dia. b: 33 mm (1.30 in) dia.

Installing 3rd & 4th and 1st & 2nd synchronizer hub Installing mainshaft front bearing

a: 50 mm (1.97 in) dia. b: 41 mm (1.61 in) dia.

Installing input shaft oil seal Installing 5th input gear

a: 39 mm (1.54 in) dia. b: 30 mm (1.18 in) dia.

MT-5

IDX

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting Chart

NIMT0003

NVH Troubleshooting Chart

NIMT0003S01

Use the chart below to help you find the cause of the symptom. The numbers indicate the order of the inspection. If necessary, repair or replace these parts.

Reference page

Refer to MA-20, “Checking M/T Oil”.

MT-17

MT-16

MT-19

MT-18

SUSPECTED PARTS (Possible cause)

Noise 1 2 3 3 Oil leakage 31222

Symptom

Hard to shift or will not shift 1 1 2 3 3 Jumps out of gear 1233

(Oil level is low.)

(Wrong oil)

(Oil level is high.)

GASKET (Damaged)

OIL SEAL (Worn or damaged)

O-RING (Worn or damaged)

CONTROL ROD (Worn)

CHECK PLUG RETURN SPRING AND CHECK BALL (Worn or damaged)

SHIFT FORK (Worn)

GEAR (Worn or damaged)

BEARING (Worn or damaged)

BAULK RING (Worn or damaged)

INSERT SPRING, SHIFTING INSERT (Damaged)

MT-6

DESCRIPTION

NIMT0004

Cross-sectional View

NIMT0004S01

MT-7

IDX

SMT902D

Cross-sectional View (Cont’d)

DESCRIPTION

SMT837DA

DOUBLE-CONE SYNCHRONIZER

NIMT0004S0101

Double-cone synchronizer is adopted for 1st and 2nd gears to reduce operating force of the shift lever.

MT-8

ON-VEHICLE SERVICE

Replacing Oil Seal

SMT563A

SMT126DB

Replacing Oil Seal

DIFFERENTIAL OIL SEAL

1. Remove drain plug and drain gear oil from transaxle.

2. Remove drive shafts. Refer to AX-12, “Removal”.

3. Remove differential oil seal using Tool.

4. Install differential oil seal with a suitable tool.

쐌 Apply multi-purpose grease to seal lip of oil seal before

installing.

5. Install drive shafts. Refer to AX-13, “Installation”.

쐌 Install differential oil seal so that dimension “A” and “B”

are within specifications.

NIMT0005

NIMT0005S01

Unit: mm (in)

WMT012

Item Model A B

QG18DE

Dimension

SR20DE

(RS5F70A)

SR20DE

(RS5F70V)

0.5 (0.020) or less

5.5 - 6.5 (0.217 - 0.256)

STRIKING ROD OIL SEAL

1. Remove transaxle control rod from yoke.

2. Remove retaining pin of yoke using Tool.

쐌 Be careful not to damage boot.

3. Remove the boot.

0.5 (0.020) or less

NIMT0005S02

IDX

SMT143DB

MT-9

Replacing Oil Seal (Cont’d)

ON-VEHICLE SERVICE

4. Remove striking rod oil seal with a suitable tool.

SMT566A

5. Install striking rod oil seal using Tool.

쐌 Apply multi-purpose grease to seal lip of oil seal before

installing.

6. Install the boot.

7. Install yoke and retaining pin.

8. Connect the transaxle control rod to the yoke.

SMT570AA

SMT715BD

Position Switch Check

BACK-UP LAMP SWITCH

쐌 Check continuity.

Gear position Continuity

Reverse Yes

Except reverse No

PNP SWITCH

쐌 Check continuity.

Gear position Continuity

Neutral Yes

Except neutral No

NIMT0006

NIMT0006S01

NIMT0006S02

MT-10

ON-VEHICLE SERVICE

Viscous Coupling Check

LMT022

Viscous Coupling Check

1. Apply parking brake firmly and place shift lever in the neutral position.

2. Jack up front wheels.

3. Rotate one front wheel and check turning direction of the other front wheel.

Turning direction of the two wheels is opposite:

The viscous coupling is not functioning normally.

Turning direction of the two wheels is the same:

If differential side gear and pinion mate gear thrust washers are OK, viscous coupling is functioning normally.

NIMT0039

MT-11

IDX

Removal

NIMT0007

REMOVAL AND INSTALLATION

Removal

NIMT0007S01

WMT009

1. Remove battery negative terminal.

2. Remove air cleaner and air duct.

3. Remove clutch operating cylinder from transaxle. Refer to CL-11, “Removal”.

4. Disconnect back-up lamp switch, speedometer sensor, PNP switch and ground harness connectors.

WMT010

WMT008

WMT011

5. Removestarter motor fromtransaxle.Refer to SC-11,“Removal and Installation”.

MT-12

REMOVAL AND INSTALLATION

6. Remove air breather hose.

Removal (Cont’d)

SMT132D

WMT005

7. Remove shift control rod and support rod from transaxle.

8. Remove the drain plug and drain gear oil from transaxle.

9. Draw out drive shafts from transaxle. Refer to AX-12, “Removal”.

10. Support engine by placing a jack under oil pan.

CAUTION:

Do not place jack under oil pan drain plug.

11. Remove LH side and rear side mounting bolts.

WMT007

SMT658B

12. Remove lower housing bolts.

MT-13

IDX

Removal (Cont’d)

REMOVAL AND INSTALLATION

13. Remove bolts securing transaxle.

14. Lower transaxle while supporting it with a jack.

SMT659B

WMT018

WMT019

Installation

— QG ENGINE —

NIMT0007S03

NIMT0007S0301

쐌 Tighten starter motor to transaxle.

:31-42N·m (3.2 - 4.3 kg-m, 23 - 31 ft-lb)

쐌 Tighten LH and rear mounts to the specified torque. Refer to

EM-50, “REMOVAL”.

쐌 Install transaxle and any part removed. 쐌 Check clutch cable adjustment. Refer to CL-17, “INSPECTION

AND ADJUSTMENT”.

Bolt No.

1 30 - 40 (3.1 - 4.1, 22 - 30) 50 (1.97) 2 30 - 40 (3.1 - 4.1, 22 - 30) 30 (1.18)

3 16 - 21 (1.6 - 2.1, 12 - 15) 25 (0.98) Front gusset to engine 30 - 40 (3.1 - 4.1, 22 - 30) 20 (0.79) Rear gusset to

engine

A B 20 (0.79)

Tightening torque

N·m (kg-m, ft-lb)

16 - 21 (1.6 - 2.1, 12 - 15)

“” mm (in)

17.5 (0.689)

MT-14

REMOVAL AND INSTALLATION

Installation

SMT134D

Installation

— SR ENGINE —

쐌 Tighten bolts securing transaxle and install any part removed. 쐌 Tighten starter motor bolts.

:41-52N·m (4.2 - 5.3 kg-m, 30 - 38 ft-lb)

Bolt No. 1234 Q’ty 5 1 L in mm (in) 55 (2.17) 35 (1.38) 45 (1.77) 65 (2.56)

Tightening torque N·m (kg-m, ft-lb)

70-79

(7.1 - 8.1,

51 - 59)

30-40

(3.1 - 4.1, 22 - 30)

NIMT0007S02

NIMT0007S0201

70-79

(7.1 - 8.1,

51 - 59)

MT-15

IDX

Transaxle Gear Control

NIMT0008

OVERHAUL

Transaxle Gear Control

NIMT0008S01

1. Control lever knob

2. Boot

3. Finisher

4. Control lever bracket

5. Dust cover

6. Socket

7. Control lever

8. O-ring

9. O-ring

10. Ring spring

11. Bearing seat

12. Seat

13. Return spring

14. Control rod

15. Bushing

16. Collar

MT-16

SMT904D

17. Bushing

18. Bracket

19. Bushing

20. Collar

21. Washer

22. Support rod bracket

23. Support rod

OVERHAUL

Case Components

=NIMT0008S02

1. Clutch housing

2. Dust seal

3. Oil pocket

4. Check plug

5. Input shaft oil seal

6. Oil channel

7. Mainshaft front bearing

8. Bearing retainer

9. Reverse idler gear front thrust washer

10. Reverse idler gear

11. Reverse idler gear bearing

12. Reverse idler gear rear thrust washer

13. O-ring

14. Reverse idler gear shaft

15. Snap ring

16. Back-up lamp switch

17. Filler plug

18. Side cover gasket

19. Side cover

20. Welch plug

21. Mainshaft bearing snap ring

22. Mainshaft rear bearing adjusting shim

23. O-ring

24. Rear cover

25. Differential oil seal

26. Drain plug

27. PNP switch

28. Transmission case

29. Oil gutter

30. Welch plug

31. Boot

32. Striking rod oil seal

33. Welch plug

34. Differential oil seal

35. O-ring

36. Speedometer pinion

WMT014

IDX

MT-17

Gear Components

OVERHAUL

Gear Components

=NIMT0008S03

1. Reverse idler gear front thrust washer

2. Reverse idler gear

3. Reverse idler gear bearing

4. Reverse idle gear rear thrust washer

5. O-ring

6. Reverse idler gear shaft

7. Snap ring

8. Input shaft front bearing

9. Input shaft

10. 3rd gear needle bearing

11. 3rd input gear

12. 3rd gear baulk ring

13. Coupling sleeve

14. Spread spring

15. Shifting insert

16. 3rd & 4th synchronizer hub

17. Spread spring

18. 4th gear C-ring

19. 4th gear needle bearing

20. 4th gear baulk ring

21. 4th input gear

22. 5th gear front C-ring

23. 5th input gear

24. 5th gear rear C-ring

25. C-ring holder

26. Input shaft rear bearing

27. Oil channel

28. Input shaft rear bearing adjusting shim

29. Mainshaft front bearing

30. Mainshaft

31. 1st gear needle bearing

32. 1st main gear

33. 1st inner baulk ring

34. 1st synchronizer cone

35. 1st outer baulk ring

36. 1st & 2nd synchronizer hub

37. Coupling sleeve

38. Insert spring

39. 2nd gear bush

40. 2nd gear needle bearing

41. 2nd gear outer baulk ring

42. 2nd gear synchronizer cone

43. 2nd inner baulk ring

44. 2nd main gear

45. 3rd main gear

46. Spacer

SMT641DA

47. Mainshaft adjusting shim

48. 4th main gear

49. 5th gear bush

50. 5th gear needle bearing

51. 5th main gear

52. 5th gear baulk ring

53. Spread spring

54. Shifting insert

55. 5th & reverse synchronizer hub

56. Spread spring

57. Coupling sleeve

58. Reverse gear bush

59. Reverse gear needle bearing

60. Reverse gear baulk ring

61. Reverse main gear

62. Sub-gear

63. Sub-gear washer

64. Snap ring

65. Mainshaft thrust washer

66. Mainshaft rear bearing

67. Mainshaft C-ring

68. C-ring holder

69. Snap ring

MT-18

OVERHAUL

Shift Control Components

=NIMT0008S04

1. Clutch housing

2. 3rd & 4th bracket

3. 3rd & 4th shift fork

4. Retaining pin

5. Check ball

6. Check pin

7. Check spring

8. Check plug

9. Stopper ring

10. 3rd & 4th fork rod

11. Selector shaft pin

12. Selector

13. 5th & reverse bracket

14. Reverse switch bracket

15. Retaining pin

16. 5th & reverse shift fork

17. Interlock plunger

18. Check ball

19. Interlock pin

20. Stopper ring

21. 5th & reverse fork rod

22. Striking lever

23. Retaining pin

24. 1st & 2nd bracket

25. 1st & 2nd shift fork

26. Check ball

27. 1st & 2nd fork rod

28. Transaxle case

29. Check ball

30. Check spring

31. Check plug

32. Select check leaf spring

33. Return spring

34. Steel ball

35. Reverse gate

36. Return bearing

37. Selector arm

38. Bushing

39. Welch plug

40. Selector shaft

41. Striking yoke

42. Retaining pin

43. Striking rod

44. Dust boot

45. Striking rod oil seal

46. Welch plug

WMT015

MT-19

IDX

Final Drive Components

OVERHAUL

Final Drive Components

=NIMT0008S05

1. Differential side bearing adjusting shim

2. Differential side bearing outer race

3. Differential side bearing

4. Final gear

5. Differential case

6. Speedometer drive gear

7. Speedometer stopper

8. Differential side bearing

9. Differential side bearing outer race

10. Pinion mate thrust washer

11. Pinion mate gear

WMT016

12. Side gear thrust washer

13. Side gear

14. Pinion mate shaft

15. Lock pin

16. Viscous coupling

MT-20

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