Seat OPEL FRONTERA 1998 Workshop Manual

7A–54
AUTOMATIC TRANSMISSION (4L30–E)
24. Install retainer and spring assembly (22) into fourth
clutch piston (21).
25. Install snap ring (23) in adapter case.
Install 5–8840–0195–0 (J–23327) and
5–8840–2263–0 (J–23327–90) fourth clutch spring
compressor.
Seat snap ring in groove.
Remove compressor.
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26. Install selective washer using petroleum jelly.
27. Install two O–ring seals (24) in main case and adapter
case/main case seal ring (25).
28. Install 5–8840–2268–0 (J–38588) guide pins.
Install adapter case and center support assembly to
main case.
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29. Install thrust washer (26) into adapter case, with
tangs pointing downwards.
30. Preassemble overdrive internal gear (27) and thrust
bearing assembly (28) onto the turbine shaft and
overrun clutch assembly.
NOTE: Install bearing assembly, black side up. Use
petroleum jelly to keep assembly in place.
31. Install overdrive carrier (30) and internal gear
assembly into adapter case.
32. Install fourth clutch plates (29) in the following order:
Steel, Lined, Steel, Steel, Lined, Steel. Steel plates
go in with short tang facing towards valve body
surface.

7A–61 AUTOMATIC TRANSMISSION (4L30–E)
Oil Pump
Disassembled View
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Legend
(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
(18) Oil Pump Assembly
Disassembly
1. Remove oil pump drive gear (1) and driven gear (2).
2. Remove pin (3) from oil pump assembly (18).
3. Remove plug (4), spring (5), and converter clutch
control valve (6).
4. Remove snap ring (7) from oil pump assembly (18).
5. Remove spring seat (8), spring (9), and throttle signal
accumulator piston (10).
6. Remove sleeve pin (11) from oil pump assembly (18).
7. Remove sleeve (12), boost valve (13), spring seat
(14), valve spring (15), spring seat (16), and pressure
regulator valve (17).
Inspection And Repair
Visual Check:
If any damage, deformation or wear is found, replace the
damaged part.
Reassembly
1. Lubricate and preinstall pressure regulator spring
seat (16) on valve (17), with the flat side against
shoulder.
2. Install pressure regulator valve (17) and spring seat
(16) assembly, valve spring (15), and spring seat (14)
with the flat side away from spring to oil pump
assembly (18).
3. Assemble boost valve (13) into sleeve (12).
4. Install boost valve and sleeve assembly, and sleeve
pin (11) to oil pump assembly (18).
5. Install throttle signal accumulator piston (10), spring
(9), and spring seat (8), with the flat side away from
the spring, and snap ring (7) to oil pump assembly
(18).
6. Install converter clutch control valve (6), spring (5),
plug (4), and pin (3) to oil pump assembly (18).
7. Install oil pump driven gear (2) and drive gear (1).

7A–66
AUTOMATIC TRANSMISSION (4L30–E)
7. Remove retaining washer (3), bearing (4), thrust
washer (5), and clutch plates (6 and 7) form the third
clutch drum assembly (8).
Inspection And Repair
Visual Check:
If any damage, deformation or wear is found, replace the
damaged part.
Reassembly
1. Place third clutch drum and intermediate shaft
assembly upright, using the overdrive internal gear as
a support.
2. Install third clutch spring cushion plate (7), bevel face
down.
3. Install third clutch plates (6) into third clutch drum
assembly (8). Start with the steel clutch plate and
alternate with lined plates.
4. Install thrust washer (5), bearing (4), and retaining
washer (3).
5. Fully engage the hub splines of the input sun gear and
sprag unit assembly (2) into the third clutch inner
tangs.
Simultaneously rotate the outer sprag race to
engage into the third clutch drum assembly (8).
6. Place 5-8840-2258-0 (J-38450-A) blades between
the retaining ring and the third clutch drum
approximately (five) notches apart, and one blade at
each end of the retaining ring (1). Push down on sprag
assembly until the assembly is seated into the third
clutch drum assembly (8).
7. Remove the tool blades and engage retaining ring
into groove of third clutch drum.
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7A–67 AUTOMATIC TRANSMISSION (4L30–E)
Third Clutch
Disassembled View
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Legend
(1) Retaining Ring
(2) Spring Seat(3) Springs
(4) Piston Assembly
(5) Third Clutch Drum
Disassemble
1. Compress spring seat using the 5–8840–0501–0
(J–23075) spring compressor and 5–8840–2259–0
(J–23075–12) adapter tool.
NOTE: Do not over–stress the springs and seat. This will
cause damage to the spring seat.
Remove the tool.
Remove retaining ring (1).
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2. Release the spring seat (2).
NOTE: Do not let the spring seat catch in the ring groove.
Remove spring seat (2) and springs (3).
3. Remove piston assembly (4) from third clutch drum
(5).
Inspection And Repair
Visual check:
If any damage, deformation or wear is found, replace the
damaged part.
Operation check:
Shake the piston and listen for check ball movement
indicates proper check ball operation. Replace the piston
if the check ball is missing or falls out.
Reassembly
1. The lip of the piston seal must point toward the front of
the transmission. Lubricate the seal lip with
transmission fluid.
Install piston assembly (4) into the third clutch drum
(5). Use the 5–8840–2260–0 (J–23084) third clutch
piston installer to protect the outer seal during
installation.

7A–68
AUTOMATIC TRANSMISSION (4L30–E)
Remove the seal installer.
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2. Install twelve springs (3) and spring seat (2).
3. Place retaining ring (1) onto spring seat.
Compress the piston springs, using the
5–8840–0501–0 (J–23075) piston spring
compressor and 5–8840–2259–0 (J–23075–12)
adapter.
CAUTION: Do not over stress the springs and seat.
Do not let the spring seat catch in the ring groove.
This may cause damage to the spring seat.
Install spring seat retaining ring (1).
Remove the piston spring compressor and adapter.

7A–70
AUTOMATIC TRANSMISSION (4L30–E)
Second Clutch
Disassembled View
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Legend
(1) Retaining Ring
(2) Ring Gear
(3) Retaining Ring
(4) Spacer
(5) Clutch Plates(6) Waved Washer
(7) Retaining Ring
(8) Spring Seat
(9) Springs
(10) Piston Assembly
(11) Second Clutch Drum
Disassembly
1. Remove retaining ring (1) from second clutch drum
(11).
2. Remove ring gear (2), retaining ring (3), and spacer
(4).
3. Remove clutch plates (5) and waved washer (6).
4. Remove retaining ring (7) using 5–8840–0195–0
(J–23327) compressor to compress the spring seat
(8).
5. Remove spring seat (8), springs (9) and piston
assembly (10) from second clutch drum (11).
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7A–71 AUTOMATIC TRANSMISSION (4L30–E)
Inspection And Repair
Visual Check:
If any damage, deformation or wear is found, replace the
damaged part.
Operation Check:
Shake the piston and listen for check ball movement.
Movement indicates proper check ball operation.
Replace the piston if the check ball is missing or falls out.
Reassembly
1. Install piston assembly (10) into the second clutch
drum (11).
Lubricate the lip seal with transmission fluid. Use
the 5–8840–2261–0 (J–23080–A) second clutch
piston installer to protect the outer piston lip seal.
NOTE: Lip of the seal should point toward front of
transmission.
Remove the installer.
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2. Install twenty–two piston springs (9) and spring seat
(8) on the second clutch piston (10). Place retaining
ring (7) onto spring seat.
Use the 5–8840–0195–0 (J–23327) compressor to
compress the piston springs.
NOTE: Do not let spring seat catch in ring groove.
Remove the compressor.
3. Install waved plate (6) and clutch plates (5). Start with
a steel plate and alternate with lined plates.
Align second clutch inner tangs.
4. Install spacer (4), with the fluted end toward clutch
plates.
5. Install retaining ring (3), ring gear (2) and retaining
ring (1).

7A–74
AUTOMATIC TRANSMISSION (4L30–E)
Reverse Clutch Piston And Center Support
Disassembled View
242RS006
Legend
(1) Retaining Ring
(2) Spring Seat
(3) Springs
(4) Piston Assembly
(5) Center Support
(6) Gasket(7) Transfer Plate
(8) Gasket
(9) Restrictor
(10) Retainer Plate
(11) Plug
(12) Spring
(13) Overrun Lock Out Valve

7A–75 AUTOMATIC TRANSMISSION (4L30–E)
Disassembly
1. Install the 5–8840–0195–0 (J–23327) compressor
tool on spring seat, then compress the spring seat.
Remove retaining ring (1).
NOTE: Do not over–stress the springs and seat, as this
will cause damage to the spring seat.
Remove the compressor tool.
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2. Remove spring seat (2) and springs (3).
3. Remove piston assembly (4).
4. Remove 8 bolts from center support (5), then remove
center support (5) from adapter case.
5. Remove gasket transfer plate/outer support (6),
center support transfer plate (7), and gasket transfer
plate/adapter case (8).
6. Remove restrictor (9) from adapter case housing.
7. Remove retainer plate (10), plug (11), spring (12), and
overrun lock out valve (13) from center support (5).
Inspection And Repair
Visual Check:
If any damage, deformation or wear is found, replace the
damaged part.
Reassembly
1. Install overrun lock out valve (13) and spring (12) to
center support.
NOTE: Ensure correct assembly of valve. The spring
should be located over the long small diameter end.
2. Install plug (11) and retainer plate (10).
3. Place restrictor (9) in the lube overdrive channel in the
adapter case housing.
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4. Install gasket transfer plate/adapter case (8), center
support transfer plate (7), and gasket transfer
plate/center support (6).
5. Install center support (5) with 8 bolts.
Torque : 25 N
m (2.5 kgꞏm/18 lb ft)
6. Install piston assembly (4) into center support (5).
7. Install twenty four springs (3), spring seat (2), and
retaining ring (1).
Install the 5–8840–0195–0 (J–23327) compressor
and compress spring seat (2) and springs (3), then
seat snap ring (1) in groove.
Remove the tool.

7A–87 AUTOMATIC TRANSMISSION (4L30–E)
(38) Seal, O–Ring
(39) Reservoir
(42) Gasket, Extension Case
(43) Extension Assembly
(44) Seal, O–Ring/Speed Sensor
(45) Sensor Assembly, Speed
(46) Screw, Speed Sensor
(50) Seal, Extension Assembly
(52) Screw, Extension/Main Case
(53) Spring, Parking Pawl Lock
(54) Pawl, Parking Lock
(55) Connector, Electrical/Main Case
(56) Actuator Assembly, Parking Lock
(57) Nut, Parking Lock Lever
(58) Link, Manual Valve
(59) Pin, Spring
(60) Lever, Parking Lock and Range Selector
(61) Shaft, Selector
(62) Seal, Selector Shaft
(63) Mode Switch Assembly
(64) Screw and Conical Washer Assembly
(65) Shield, Mode Switch
(67) Pan, Bottom/Adapter Case
(68) Gasket, Bottom Pan/Adapter Case
(69) Harness Assembly, Adapter Case
(70) Screw, Valve Body
(71) Valve Body Assembly, Adapter Case
(72) Gasket, Adapter Valve Body
(73) Plate, Adapter Valve Body/Transfer
(74) Pan, Bottom/Main Case(75) Gasket, Bottom Pan/Main Case
(76) Gasket, Oil Drain or Overfill Screw
(77) Screw, Oil Drain or Overfill
(78) Magnet, Chip Collector
(79) Filter Oil
(80) Harness Assembly, Main Case
(82) Roller and Spring Assembly, Manual Detent
(84) Valve Body Assembly, Main Case
(85) Ball, Check
(86) Gasket, Main V.B./Transfer Plate
(87) Plate, Main V.B./Transfer
(88) Gasket, Transfer/Main Case
(89) Screw, Transfer Plate on V.B.
(90) Screw, Servo Cover
(91) Cover, Servo Piston
(92) Gasket, Cover/Servo Piston
(93) Ring, Retaining Servo Piston
(94) Clip, Servo Piston
(95) Nut, Servo Screw
(96) Screw, Servo Piston
(97) Piston, Servo
(98) Seal, Ring/Servo Piston
(99) Spring, Cushion/Servo Piston
(100) Seat, Cushion Spring
(101) Sleeve, Servo Piston Adjust
(102) Rod, Apply/Servo Piston
(103) Spring, Return/Servo Piston
(104) Gasket, Adapter Case/Transfer Plate
(105) Powertrain Control Module
(106) Servo Piston Assembly
Pump Assembly
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Legend
(201) Gear, Oil Pump Drive
(202) Gear, Oil Pump Driven
(203) Pin, Boost Valve Sleeve
(204) Sleeve, Boost Valve(205) Valve, Boost
(206) Seat, Spring/Pressure Regulator Valve
(207) Spring, Pressure Regulator Valve
(208) Valve, Pressure Regulator
(209) Pump Assembly, Oil