●Do not reuse transaxle oil, once it has been drained.
●Check oil level or replace oil with vehicle on level ground.
●During removal or installation, keep inside of transaxle clear of dust or dirt.
●Check for the correct installatio n status prior to rem oval or d isassembly. If mating marks are requ ired, be
certain they do not interfere with the function of the parts they are applied to.
●In principle, tighten bolts or nuts gradually in several steps working diagonally from inside to outside. If
tightening sequence is specified, use it.
●Be careful no t to damage sliding surfaces and mating surfaces.
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Revision: July 20042005 Sentra
MT-3
PREPARATION
[RS5F70A]
PREPARATIONPFP:00002
Special Service ToolsECS005TE
The actual shapes of the Kent-Moore tools m ay di ffer from those of the speci al service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name
KV38107700
(J39027)
Preload adapter
NT087
KV38106000
(J34291-B)
Height gauge adapter
(differential side bearing)
NT418
KV32101000
(J25689-A)
Pin punch
Description
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.
KV31100300
(J25689-A)
Pin punch
ST30031000
(J22912-01)
Puller
ST30021000
(J22912-01)
Puller
NT410
NT410
NT411
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.
Revision: July 20042005 Sentra
MT-4
PREPARATION
[RS5F70A]
Tool number
(Kent-Moore No.)
Tool name
ST33061000
(J8107-2)
Drift
ST33290001
(J34286)
Puller
ST33230000
(J25805-01)
Drift
ST30720000
(J25405)
Drift
NT073
NT414
NT084
Description
Removing differential side bearing
a: 39 mm (1.54 in) dia.
b: 29.5 mm (1.16 in) dia.
● 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
a: 77 mm (3.03 in) dia.
b: 55.5 mm (2.185 in) dia.
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ST22350000
(J25678-01)
Drift
ST22452000
(J34335)
Drift
ST37750000
(J34335)
Drift
NT115
NT065
NT065
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.
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Revision: July 20042005 Sentra
MT-5
PREPARATION
[RS5F70A]
Tool number
(Kent-Moore No.)
Tool name
ST30621000
(J35869)
Drift
NT073
ST30611000
(J25742-1)
Drift handle
NT419
Description
Installing differential side bearing outer race
[Use with ST30611000 (J25742-1).]
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 ToolsECS005TF
Tool nameDescription
DriftInstalling differential side bearing inner race
a: 56 mm (2.20 in) dia.
b: 50.5 mm (1.988 in) dia.
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
[RS5F70A]
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartECS005TG
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
Suspected Parts (Possible cause)
Noise1233
Symptom
Oil leakage31222
Hard to shift or will not shift11233
Jumps out of gear1233
MT-10
(Oil level is low)
MT-10
MT-10
(Wrong oil)
(Oil level is high)
Gasket (Damaged)
MT-18
Oil Seal (Worn or damaged)
MT-13
O-Ring (Worn or damaged)
Control Rod (Worn)
Check Plug Return Spring and Check Ball (Worn or damaged)
MT-20
MT-19, MT-21
Shift Fork (Worn)
Gear (Worn or damaged)
Bearing (Worn or damaged)
Baulk Ring (Worn or damaged)
Insert Spring, Shifting Insert (Damaged)
Revision: July 20042005 Sentra
MT-8
DESCRIPTION
[RS5F70A]
DESCRIPTIONPFP:00000
Cross-sectional ViewECS005TH
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DOUBLE-CONE SYNCHRONIZER
Double-cone synchronizer is used for 1st and 2nd gears to reduce
operating force of the shift lever.
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WCIA0017E
SMT837DA
Revision: July 20042005 Sentra
MT-9
M/T OIL
[RS5F70A]
M/T OILPFP:KLD20
ReplacementECS005TI
DRAINING
1.Start the engine and let it run to warm up the transaxle.
2.Stop the engine. Remove drain plug and drain oil.
3.Set a gasket on the drain plug and install it on the transaxle.
12. Remove differential side b earing outer race and ad justing shim
from transaxle case using Tool.
13. Remove differential oil seal from transaxle case using Tool.
SMT650D
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SMT651DA
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SMT653DA
Revision: July 20042005 Sentra
MT-23
TRANSAXLE ASSEMBLY
14. Remove welch plugs from transaxle case using Tool.
Clutch Housing
1.Remove transaxl e case from the clutch housing.
2.Remove check plugs, check springs, check pins, and check
balls from the clutch housing.
[RS5F70A]
SMT839DA
3.Remove 3rd & 4th bracket retaining pin using Tool.
4.Remove 3rd & 4th shift fork stopper ring.
5.Remove 3rd & 4th fork rod.
6.Remove 3rd & 4th shift fork and bracket.
SMT654D
SMT656DA
SMT655D
Revision: July 20042005 Sentra
MT-24
TRANSAXLE ASSEMBLY
7.Remov e int erl oc k plu nger and check ball.
8.Remove 5th & reverse bracket stopper ring .
9.Remove retaining pins from 5th & reverse shift fork and 5th &
reverse bracket usin g Tool.
10. Remove 5th & reverse fork rod.
11. Remove interlock pin from 5th & reverse fork rod using Tool.
12. Remove reverse switch bracket and 5th & reverse bracket.
[RS5F70A]
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SMT658D
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SMT657DA
13. Rem ov e ch ec k ba ll from housing.
14. Remove retaining pin for 1st & 2nd shift fork and 1st & 2nd
bracket using Tool.
15. Remove 1st & 2nd fork rod.
16. Rem ove 5th & reve rse and 1 st & 2nd shift fork s, and 1st & 2nd
bracket.
17. Rem ove both input shaft and mainshaft assemblie s from housing.
18. Remove final drive assembly from housin g.
19. Remove oil pocket from housing.
SMT659DA
SMT660D
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SMT661D
Revision: July 20042005 Sentra
MT-25
TRANSAXLE ASSEMBLY
20. Remove mainshaft bearing retainer from housing.
21. Cut off oil channel using a cutter as shown.
22. Remove mains haft front bearing from housing using Tool.
[RS5F70A]
SMT662D
23. Using a magnet or other suitable tool, remove selector pin from
selector shaft.
24. Remove selector shaft and plug, then remove selector using
Tool.
SMT663DA
SMT664D
SMT665DA
25. Remove reamer bolts, then remove select check leaf spring,
return sprin g, st e el bal l , rev er s e gat e, sel ec tor arm, be ari ng , and
bushing.
CAUTION:
Be careful not to lose the steel ball.
SMT666DA
Revision: July 20042005 Sentra
MT-26
TRANSAXLE ASSEMBLY
[RS5F70A]
26. Remove retai ning pin and plug from striking lever using Tool.
27. Remove striking rod, then striking lever from housing.
28. Using a flat-head screwdriver or other suitable tool, remove dust
seal, input shaft oil seal, and striking rod oil seal from housing.
CAUTION:
When removing dust and oil seals, be careful not to damage
mounting surfaces of dust seal and oil seal.
29. Remove differential oil seal from ho using using Tool.
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SMT667DA
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SMT668D
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30. Remove differential side outer race from housing using Tool.
WMT021
SMT670DA
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Revision: July 20042005 Sentra
MT-27
TRANSAXLE ASSEMBLY
ASSEMBLY
Clutch Housing
1.Hammer the ne w striking rod oil seal into clu tch housing as far
as it will go using Tool.
CAUTION:
Do not reuse striking rod oil seal.
2.Hammer the differential oil seal into clutch housing with a suitable tool until it becomes flush with clutch housing end face.
CAUTION:
Do not reuse differential oil seal.
[RS5F70A]
SMT722DA
3.Hammer input shaf t oil se al in to cl utch ho usin g as f ar a s it wi ll go
with a suitable tool.
CAUTION:
Do not reuse input shaft oil seal.
4.Hammer the dust seal into clutch housing as far as it will go
using Tool.
CAUTION:
Do not reuse dust seal.
SMT723DA
SMT724DA
SMT725DA
Revision: July 20042005 Sentra
MT-28
TRANSAXLE ASSEMBLY
5.Install oute r race of differential side bearing using Tool.
6.Install new oil channel (mainshaft).
CAUTION:
Pay attention to installation direction of oil channel.
[RS5F70A]
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SMT726DA
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SMT727D
7.Align the notches o n main shaf t fro nt be aring and t ransax le ca se.
Then, install mainshaft front bearing with a suitable tool.
8.Install mainshaft bearing retainer, tighten bolt to specification.
9.Attach boot, striking rod, and striking lever to clutch housing.
Install ne w retaining pin for striking lever using Tool.
CAUTION:
● Before installing striking rod, wrap the end with a vinyl
tape or similar product to prevent oil seal from being
damaged.
● Do not reuse retaining pin.
SMT728DA
SMT729D
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SMT667DA
Revision: July 20042005 Sentra
MT-29
TRANSAXLE ASSEMBLY
10. Hammer th e new we lch pl ug (st rik ing le ver si de) with a gen eralpurpose dri ft [OD: 12 mm (0.47 in)].
CAUTION:
Do not reuse welch plug.
11. Install selector, selector s haft, and select or shaft pin into clutch
housing.
[RS5F70A]
SMT730D
12. Hammer the new welch plug (selector shaft side) with a generalpurpose dri ft [OD: 12 mm (0.47 in)].