Nissan 240SX — Automatic Transmission (Section AT) (2000 year). Manual — part 14
JAT437K
13. Support A/T with a jack.
14. Remove rear engine mounting member from body and A/T
assembly. Tighten rear engine mounting member to the speci-
fied torque. Refer to EM-66, “Removal”.
15. Remove bolts securing A/T assembly to engine.
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Secure torque converter to prevent it from dropping.
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Secure A/T assembly to a jack.
16. Lower A/T assembly.
SAT977H
Installation
NMAT0107
1.
Drive plate runout
Maximum allowable runout:
Refer to EM-77, “Flywheel/Drive Plate Runout”.
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If this runout is out of specification, replace drive plate with ring
gear.
SAT017B
2.
When connecting torque converter to transmission, measure
distance “A” to be certain that they are correctly assembled.
Distance “A”:
23.5 mm (0.925 in) or more
JAT436K
3.
Install converter to drive plate.
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After converter is installed to drive plate, rotate crankshaft
several turns and check to be sure that transmission
rotates freely without binding.
JAT439K
4.
Tighten bolts securing transmission.
Bolt No.
Tightening torque
N·m (kg-m, ft-lb)
Bolt length “
”
mm (in)
1
70 - 79 (7.1 - 8.1, 52 - 58)
68 (2.68)
2
70 - 79 (7.1 - 8.1, 52 - 58)
78 (3.07)
3
29 - 39 (3.0 - 4.0, 22 - 29)
65 (2.56)
5.
Reinstall any part removed.
GI
MA
EM
LC
EC
FE
CL
MT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
REMOVAL AND INSTALLATION
Removal (Cont’d)
AT-209
SAT638A
6.
Check fluid level in transmission.
7.
Move selector lever through all positions to be sure that trans-
mission operates correctly.
With parking brake applied, rotate engine at idling. Move selec-
tor lever through “N” to “D”, to “2”, to “1” and to “R” positions.
A slight shock should be felt by hand gripping selector each
time transmission is shifted.
8.
Perform road test. Refer to “ROAD TEST”, AT-52.
JAT438K
AIR BREATHER HOSE
NMAT0107S02
REMOVAL AND INSTALLATION
Installation (Cont’d)
AT-210
Components
NMAT0108
SAT431K
GI
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EM
LC
EC
FE
CL
MT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
OVERHAUL
Components
AT-211
SAT440K
OVERHAUL
Components (Cont’d)
AT-212
Oil Channel
NMAT0109
SAT185B
GI
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EC
FE
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OVERHAUL
Oil Channel
AT-213
Locations of Needle Bearings, Thrust Washers
and Snap Rings
NMAT0110
SAT441KA
OVERHAUL
Locations of Needle Bearings, Thrust Washers and Snap Rings
AT-214
NMAT0111
SAT018B
1.
Drain ATF through drain plug.
2.
Remove torque converter by holding it firmly and turning while
pulling straight out.
SAT019B
3.
Check torque converter one-way clutch.
a.
Insert Tool into spline of one-way clutch inner race.
b.
Hook bearing support unitized with one-way clutch outer race
with suitable wire.
c.
Check that one-way clutch inner race rotates only clockwise
with Tool while holding bearing support with wire.
SAT021BB
4.
Remove PNP switch from transmission case.
SAT186B
5.
Remove oil pan.
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Always place oil pan straight down so that foreign particles
inside will not move.
SAT522GA
6.
Place transmission into Tool with the control valve facing up.
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DISASSEMBLY
AT-215
SAT171B
7.
Check foreign materials in oil pan to help determine cause of
malfunction. If the fluid is very dark, smells burned, or contains
foreign particles, the frictional material (clutches, band) may
need replacement. A tacky film that will not wipe clean indi-
cates varnish build up. Varnish can cause valves, servo, and
clutches to stick and may inhibit pump pressure.
I
If frictional material is detected, replace radiator after
repair of A/T. Refer to LC-14, “Components”.
SAT024BC
8.
Remove torque converter clutch solenoid valve and A/T fluid
temperature sensor connectors.
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Be careful not to damage connector.
SAT008B
9.
Remove oil strainer.
a.
Remove oil strainer from control valve assembly.
Then remove O-ring from oil strainer.
SAT025B
b.
Check oil strainer screen for damage.
SAT009B
10. Remove control valve assembly.
a.
Straighten terminal clips to free terminal cords then remove
terminal clips.
DISASSEMBLY
AT-216
SAT353B
b.
Remove bolts A and B, and remove control valve assembly
from transmission.
Bolt symbol
Length mm (in)
A
33 (1.30)
B
45 (1.77)
SAT026B
c.
Remove solenoid connector.
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Be careful not to damage connector.
SAT127B
d.
Remove manual valve from control valve assembly.
SAT128B
11. Remove terminal cord assembly from transmission case while
pushing on stopper.
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Be careful not to damage cord.
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Do not remove terminal cord assembly unless it is dam-
aged.
GI
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EM
LC
EC
FE
CL
MT
PD
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BR
ST
RS
BT
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SC
EL
IDX
DISASSEMBLY
AT-217
SAT999A
12. Remove converter housing from transmission case.
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Be careful not to scratch converter housing.
SAT995A
13. Remove O-ring from input shaft.
SAT027BA
14. Remove oil pump assembly.
a.
Attach Tool to oil pump assembly and extract it evenly from
transmission case.
SAT028B
b.
Remove O-ring from oil pump assembly.
c.
Remove traces of sealant from oil pump housing.
I
Be careful not to scratch pump housing.
SAT108B
d.
Remove needle bearing and thrust washer from oil pump
assembly.
DISASSEMBLY
AT-218
SAT988A
15. Remove input shaft and oil pump gasket.
SAT029B
16. Remove brake band and band strut.
a.
Loosen lock nut and remove band servo anchor end pin from
transmission case.
SAT986A
b.
Remove brake band and band strut from transmission case.
SAT655
c.
Hold brake band in a circular shape with clip.
SAT030B
17. Remove front side clutch and gear components.
a.
Remove clutch pack (reverse clutch, high clutch and front sun
gear) from transmission case.
GI
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LC
EC
FE
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PD
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SU
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RS
BT
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DISASSEMBLY
AT-219
SAT113B
b.
Remove front bearing race from clutch pack.
c.
Remove rear bearing race from clutch pack.
SAT031B
d.
Remove front planetary carrier from transmission case.
SAT968A
e.
Remove front needle bearing from front planetary carrier.
f.
Remove rear bearing from front planetary carrier.
SAT974A
g.
Remove rear sun gear from transmission case.
SAT189B
18. Remove rear extension.
a.
Remove rear extension from transmission case.
b.
Remove rear extension gasket from transmission case.
DISASSEMBLY
AT-220
SAT190B
c.
Remove oil seal from rear extension.
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Be careful not to scratch rear extension.
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Do not remove oil seal unless it is to be replaced.
SAT191B
d.
Remove revolution sensor from rear extension.
e.
Remove O-ring from revolution sensor.
SAT960A
19. Remove output shaft and parking gear.
a.
Remove rear snap ring from output shaft.
SAT957A
b.
Slowly push output shaft all the way forward.
I
Do not use excessive force.
c.
Remove snap ring from output shaft.
SAT109B
d.
Remove output shaft and parking gear as a unit from transmis-
sion case.
e.
Remove parking gear from output shaft.
GI
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LC
EC
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CL
MT
PD
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SU
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DISASSEMBLY
AT-221
SAT033B
f.
Remove needle bearing from transmission case.
SAT954A
20. Remove rear side clutch and gear components.
a.
Remove front internal gear.
SAT110B
b.
Remove bearing race from front internal gear.
SAT111B
c.
Remove needle bearing from rear internal gear.
SAT951A
d.
Remove rear internal gear, forward clutch hub and overrun
clutch hub as a set from transmission case.
DISASSEMBLY
AT-222
SAT148G
e.
Remove needle bearing from overrun clutch hub.
f.
Remove overrun clutch hub from rear internal gear and for-
ward clutch hub.
SAT036B
g.
Remove thrust washer from overrun clutch hub.
SAT037B
h.
Remove forward clutch assembly from transmission case.
SAT038B
21. Remove band servo and accumulator components.
a.
Remove band servo retainer from transmission case.
SAT039B
b.
Apply compressed air to oil hole until band servo piston comes
out of transmission case.
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Hold piston with a rag and gradually direct air to oil hole.
c.
Remove return springs.
GI
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EM
LC
EC
FE
CL
MT
PD
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SU
BR
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BT
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DISASSEMBLY
AT-223
SAT040BA
d.
Remove springs from accumulator pistons B, C and D.
e.
Apply compressed air to each oil hole until piston comes out.
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Hold piston with a rag and gradually direct air to oil hole.
Identification of accumulator pistons
A
B
C
D
Identification of oil holes
a
b
c
d
SAT523GA
f.
Remove O-ring from each piston.
SAT041B
22. Remove manual shaft components, if necessary.
a.
Hold width across flats of manual shaft (outside the transmis-
sion case) and remove lock nut from shaft.
SAT042B
b.
Remove retaining pin from transmission case.
SAT935A
c.
While pushing detent spring down, remove manual plate and
parking rod from transmission case.
DISASSEMBLY
AT-224
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