oil ISUZU TROOPER 1995 Workshop Manual

13. Servo piston
Fig. 7A-32
14. Speed sensor (Fig. 7A-33)
• Rotate transmission to horizontal position, pan
side down.
• Remove one 1 Omm screw, and speed sensor
with "0" ring.
15. Extension housing (Fig. 7 A-33)
• Remove seven 8mm hexagon socket head
screws, extension assembly, and gasket.
• Remove retaining ring.
\fl NOTE:
V Use extra long nose pliers.
• Remove speed wheel.
• Remove wheel parking lock (with seal ring).
15. Wheel parking lock
Seal:~
15. Retaining ring
15. Extension housing
Fig. 7A-33
AUTOMATIC TRANSMISSION (4L30-E) 7A-175
16. Converter housing and oil pump assembly (Fig.
7A-34)
16
• Rotate transmission to vertical position, con­
verter housing up.
• Loosen, but not remove, five 13 mm inner
screws
if oil pump disassembly required.
• Remove seven outer screws.
• Remove converter housing and oil pump as­
sembly.
• Remove gasket.
• Remove selective thrust washer.
~---16. Selective thrust washer
Fig. 7A-34
17. Fourth clutch retainer (Fig. 7A-35)
• Remove fourth clutch retainer.
18. Turbine shaft and clutch plates (Fig. 7A-35)
• Grasp turbine shaft and lift out the overrun
clutch housing assembly and fourth
clutch
plates.
19. Thrust bearing assembly (Fig. 7A-35)
• Remove thrust bearing assembly.
20. Overdrive internal gear (Fig. 7A-35)
• Remove overdrive internal gear.
21. Thrust washer (Fig. 7A-35)
• Remove thrust washer.

30. Parking lock and selector lever assembly
(Fig. 7A-37)
• Rotate case to horizontal position, valve body
side facing up.
• Remove spring pin, using cutting pliers.
\fl NOTE:
~ Insert wire in the center of the spring pin to
prevent it from collapsing during removal. Be
aware of pin height. Protect machined face of
main case.
• Remove parking lock and range selector lever
17 mm nut.
• Remove parking lock and range selector lever
and actuator assembly.
•
Remove selector shaft.
\fl NOTE:
~ Inspect the shaft for burrs before removing to
prevent damaging seal. If necessary, remove
burrs
by lightly sanding with an oilstone.
30. Parking lock and range selector lever
30. Selector
shaft
Fig. 7A-37
AUTOMATIC TRANSMISSION (4L30-E) 7A-177
1 .. ! .. 1 REASSEMBLY
30. Parking lock and selector lever assembly
(Fig. 7A-38)
• Inspect selector shaft seal, replace if necess­
ary.
\fl NOTE:
~ Use a seal installer when replacing the seal.
• Install selector
shaft.
\fl NOTE:
~ Spring pin groove must be positioned inside the
case.
• Install spring pin. Be sure the selector shaft can
move
freely.
Do not push the pin flush with the case surface.
Leave enough
height for removal.
• Install
actuator assembly.
• Install
parking lock and range selector lever and
new 17 mm nut.
~~~ Torque N·m(lb·ft) 22 (16)
Parking lock and range selector lever
Fig. 7A-38
29. Brake band (Fig. 7A-39)
~ • Rotate main case to vertical position, extension
~ end facing down.
• Install brake band assembly.
\fl NOTE:
~ Be sure to align servo pin area with the servo hole.
• Install
thrust bearing.
\fl NOTE:
~ The case bushing acts as a guide for the thrust
bearing.

AUTOMATIC TRANSMISSION (4L30-E) 7A-181
------1 18. Turbine shaft and overrun clutch ---------------1
_ __1------------:~"""clutch p;ston

Overrun clutch drum
Turbine shaft oil seal ring
Turbine shaft
21. Thrust washer
00 internal gear carrier assembly 1 19. Thrust
be~ ring
'
_]'
' o'"''""'.""elutc~~
Diaphragm spring ~
r~~hp; .. on
I
I '
Fourth clutch piston
23. Retainer
and spring assembly
23.
Snap ring
Fig. 7A-46

~~11. Fourth •
~ clutch
___,,.,.,.,.
retainer
Turbine shaft
& overrun clutch
housing assembly
Fourth clutch
plates
®• I 19. Thrust bearing
18
~Overdrive L' ,
~ernal gear _ ------_j
~ 2l. Thr~st washer
Fig. 7A-50
rfi:il Overdrive clutch end play measurement
~ (Fig. 7A-51 and Fig. 7A-52)
Turbine shaft
J-23085-A
case
Fig. 7A-51
• Install the tool on the adapter case flange and
against the
input shaft.
• Position the inner shaft of the tool against the
thrust surface
of the overrun clutch housing.
• Tighten thumb screw. Remove the tool.
• Measure gap "G". Select appropriate size
washer
as the chart specifies.
• Set selective thrust washer aside.
AUTOMATIC TRANSMISSION (4L30-E) 7A-183
1®.1 Selective washer gaging tool: J-23085-A
J-23085-A
Selective Thrust Washer
Dim.
"G" mm(in) Color
1.53-1.63 (0.060- 0.064) Yellow
1. 72 - 1 .82 (0.068 -0.072) Red
1.91 -2.01 (0.075 -0.079) Black
2.10-2.20 (0.083-0.087) Natural
2.29 -2.39
(0.090 -0.094) Green
2.48 -2.58
(0.098 -0.1 02) Blue
FOLLOWING THE PROCEDURE SHOULD
RESULT
IN FINAL END-PLAY FROM
0.1 mm TO 0.8 mm (0.004" TO 0.03")
Fig. 7A-52
16.
Converter housing and oil pump assembly
(Fig. 7A-53)
• Install outer seal ring and gasket.
• Install selective washer.
W NOTE:
VI Use petroleum jelly to hold selective washer in
place.
• Install
complete converter housing and oil
pump
assembly to adapter case.
• Fit and tighten seven outer 13 mm screws.
~~~ Torque N·m (lb·ft) j 39 (29)

7A-184 AUTOMATIC TRANSMISSION (4L30-E)
~· Ensure free rotation of pump using rotation
tool.
16
Pump rotation tool: J-23082-01
-----16. Selective thrust washer
Fig. 7A-53
l'fil Overdrive end play measurement (Fig. 7A-54)
~ • Fit puller on turbine shaft.
• Position axial play checking tool on
converter housing mating face.
• Pull turbine shaft upwards with puller until
first resistance is met.
(Due
to weight of overdrive complete
assembly)
Maintain shaft in this position and set
indicator to zero.
• Pull turbine shaft further upwards with
puller. Read end play shown on indicator.
End
play mm (in) I 0.1 -0.8 (0.004-0.031)
1®.1 Turbine shaft puller: J-25022 and J-24773-1
J-24773·1
J-25022
Fig. 7A-54
15. Extension housing (Fig. 7A-55)
• Inspect extension housing oil seal and
replace if necessary (Fig. 7 A-56).
1®.1 Extension housing oil seal installer: J-36797
• Rotate transmission to horizontal position,
with valve body side down.
• Inspect parking wheel seal ring. Replace if
necessary.
• Install wheel parking lock assembly.
• Install
speed wheel and snap ring.
NOTE:
Use extra long nose pliers.
• Install
gasket onto extension assembly,
usin£1 a thin coating of oil.
• Install
extension housing assembly, and
align parking pawl shaft.
• Install actuator assembly into extension
assembly.
• Install
seven 8 mm hexagon socket head
screws.
• Remove axial play checking tool and puller. ~~~ Torque N-m(lb.ft) 32 (24) W NOTE: _ __:_ ___ __:___:__J_ _ __.::..:::....=_:..:.__ __
If end play is not correct, repeat selective
washer selection.

7A-186 AUTOMATIC TRANSMISSION (4L30-E)
~-4. Oil filler tube
.. tV ~
v -I
6. Adapter case.....L---1>( valve body
Fig. 7A-59
3. Mode switch
and
transmission
harness
11 . Servo cover

12. Main case valve body (fig. 7A-59)
• Install two check balls (Fig. 7A-60).
• Inspect electrical
connector and seal, replace
if necessary.
• Install electrical 4 pin connector/main case
and
wiring harness.
1®..1 • Install two guide pins into main case.
Guide pin:
J-25025-B
• Install valve
body complete assembly and
manual valve link.
W NOTE:
Valve must be extended as the short end of
manual valve link is connected to the range
selector lever. Long end of link goes into valve.
Fig. 7A-60
• Install
seven 13 mm screws.
~~~ Torque N·mOb·ft) I 20 (15)
• Remove two guide pins.
11.
Servo cover (fig. 7 A-59)
Check ball
• Install servo cover gasket, cover and four 13
mm screws.
~~~ Torque N·mOb·ft) I 25 ( 18)
10. Wiring harness (fig. 7A-59)
• Connect harness to band control and shift
solenoids.
9. Manual detent (fig. 7 A-59)
• Install roller and spring assembly with clip.
Install two 13 mm screws.
~~~ Torque N·mOb·ft) 20 (15)
AUTOMATIC TRANSMISSION (4L30-E) 7A-187
8. Oil filter (Fig. 7 A-59)
• Install oil filter, three 13 mm screws.
~~~ Torque N.m(lb·ft) I 20 (15)
7. Main
case oil pan (Fig. 7 A- 59)
• Install oil pan gasket, magnet, oil pan,
sixteen
10 mm screws.
~~~ Torque N·m(lb·in) I 11 (96)
6. Adapter case valve body (fig. 7 A-59)
• Inspect electrical connector and seal.
Replace
if necessary.
Install electrical five pin connector and
harness
assembly in bottom of adapter
case.
Install gasket, transfer plate, gasket.
• Install adapter case valve body complete
and seven 13 mm screws.
~~~ Torque N.m(lb.ft) I 20 (15)
5. Wiring harness (fig. 7A-59)
• Connect harness assembly to converter
clutch solenoid, and force motor.
4. Adapter case oil pan (fig. 7 A-59)
• Install oil pan gasket, oil pan, twelve 10 mm
screws.
~~~ Torque N·mOb·in) 11 (96)
• Rotate transmission, with bottom pan
facing
down.
• Install seal ring, oil filler tube, 10 mm screw.
~~~ Torque N·mOb·in) I 13 (113)
3. Mode switch and transmission harness
(Fig. 7A-61).
• Install transmission harness.
• Install mode switch, shield and two 10 mm
screws.
• Adjust using setting tool.
Refer to "MODE SWITCH" in this section.
~~~ Torque
Selector shaft nut
10 mm screw
N·mOb·ft)
23 (17)
13 (113 lb·in)

7A-188 AUTOMATIC TRANSMISSION (4L30-E)
Fig. 7A-61
2. 0-ring (fig. 7 A-59)
• Install 0-ring on turbine shaft.
1. Torque converter
(fig. 7A-59)
The converter assembly
must be replaced under
any
of the following conditions:
a. Evidence of damage to the pump assembly
b. Metal particles are found after flushing
the
cooler lines
c. External leaks in hub weld area
d. Converter Pilot broken, damaged
or poor fit
into crankshaft
e. Converter hub scored or damaged
f.
Internal failure in stator
g. Contamination
from engine coolant
h. Excess end play.
• Install converter assembly.
Rotate transmission,
bell housing up. Spin
converter
to insure proper fit.
• Fill transmission through the oil filler tube, using
DEXRQN®-111 Automatic transmission fluid.

AUTOMATIC TRANSMISSION (4L30·E) 7A-189
CONVERTER HOUSING AND OIL PUMP ASSEMBL V
1
Disassembly steps
1. Converter housing
2. Outer seal ring
3. Gasket
4. Wear
plate
5. Oil pump assembly
6. Oil seal ring
Reassembly steps
To reassemble, follow
the disassembly steps in the reverse order.
Fig. 7A-62
l•!•l DISASSEMBLY
1. Converter housing
• Remove five bolts from converter housing.
2. Outer seal ring
3. Gasket
4. Wear plate
5. Oil pump assembly
6. Oil seal ring
[1!) INSPECTION AND REPAIR
Visual check
• If any damage, deformation or local wear is found
in a converter housing, outer
seal ring, wear plate
or oil seal ring, replace it.
l•!•l REASSEMBLY
6. Oil seal ring
• Install oil seal ring using installer.
1~1 Torque N·m (lb·in)
5. Oil pump assembly
4. Wear plate
3 (26)
• Install wear plate onto oil pump assembly.
3. Gasket
2. Outer seal ring
"-"' 1. Converter housing (Fig. 7A-63)
li0\1 • Install converter housing onto complete oil
~ pump assembly. Align with two short guide
pins on outer
bolt holes. •
Loosely install
five 13mm bolts.
•
Center converter housing using centering tool.
•
Tighten five inner 13mm bolts in an alternating
pattern.
I~I ___ T_o_rq~u_e __ N_·_m_(_lb_·ft_)~l _____ 2_0_(_15_) ____ _
Guide pin: J-38588
Centering
tool: J-38557
J-38557
Fig. 7A-63

7A-190 AUTOMATIC TRANSMISSION (4L30-E)
OIL PUMP
Disassembly steps 1. Oil pump drive gear 2. Oil pump driven gear 3. Pin 4. Plug 5. Spring 6. Converter clutch control
valve
7. Snap ring 8. Spring seat 9. Spring 10. Throttle signal accumulator piston 11. Sleeve pin 12. Sleeve 13. Boost valve 14. Spring seat 15. Valve spring 16. Spring seat 17. Pressure regulator valve
Reassembly steps
To reassemble, follow the disassembly steps in the
reverse order.
Fig. 7A-64
1+!•1 DISASSEMBLY
1. Oil pump drive gear
2. Oil pump driven gear
3. Pin
4. Plug
5. Spring
6. Converter clutch control valve
7. Snap ring
8. Spring seat
9. Spring
10. Throttle signal accumulator piston
11. Sleeve pin
12. Sleeve
13. Boost valve
14. Spring seat
15.
Valve spring
16. Spring seat
17. Pressure regulator valve
ll..•ltNSPECTION AND REPAIR
Visual check
• If any damage, deformation or local wear is
found in a snap ring, spring, spring retainer
valve,
gear or oil pump, replace it.
l•!•l REASSEMBLY
17. Pressure regulator valve
16. Spring seat
0 • Lubricate and preinstall pressure
L::::J spring seat on valve, with the
1 .. 1 against shoulder.
15. Valve spring
14. Spring seat
13.
Boost valve
12. Sleeve
11. Sleeve pin
10. Throttle signal accumulator piston
9. Spring
8. Spring seat
regulator
flat side
r=1 • Install throttle signal accumulator piston,
t.=..l spring, and spring seat, with the flat side
away from the spring and snap ring.
7. Snap ring
6. Converter clutch control valve
5. Spring
4. Plug
3. Pin
2. Oil pump driven gear
1. Oil pump drive gear