1998 OPEL FRONTERA Gas

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–93
DISASSEMBLY OF MAJOR COMPONENTS (2)
242RY00005
Disassembly steps
1. Converter housing
2. Oil pan
3. Oil strainer assembly
4. Solenoid wiring
5. Valve body
6. Check valve, spring
7. Spring
8. Accumulator piston (B-2)
9. Accumulator piston (C-2)
10. Accumulator piston (B-0)
11. Accumulator piston (C-0)
12. Second brake drum gasket

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–107
DISASSEMBLY, INSPECTION AND
REASSEMBLY OF MINOR COMPONENTS
The instructions here are organized so that you work on only
one component group at a time.
This will help avoid confusion from similar-looking parts of
different subassemblies being on your workbench at the same
time.
The component groups are inspected and repaired from the
converter housing side.
As much as possible, complete the inspection, repair and
reassembly before proceeding to the next component group. If
a component group cannot be reassembled because parts are
being ordered, be sure to keep all parts of that group in a
separate container while proceeding with disassembly,
inspection, repair and reassembly of other component groups.
Recommended ATF type BESCO ATF II or III.
GENERAL CLEANING NOTES:
1. All disassembled parts should be washed clean and any
fluid passages and holes blown through with compressed
air.
2. When using compressed air to dry parts, always aim away
from yourself to prevent accidentally spraying automatic
transmission fluid in your face.
3. The recommended automatic transmission fluid should be
used for cleaning.
PARTS ARRANGEMENT:
1. After cleaning, the par ts should be arranged in proper order
to allow performing inspection, repairs, and reassembly
with efficiency.
2. When disassembling a valve body, be sure to keep each
valve together with the corresponding spring.
3. New brakes and clutches that are to be used for
replacement must be soaked in transmission fluid for at
least thir ty before assembly.
GENERAL ASSEMBLY:
1. All oil seal rings, clutch discs, clutch plates, rotating parts,
and sliding surfaces should be coated with transmission
fluid prior to reassembly.
2. All gaskets and rubber O-rings should be replaced.
3. Make sure that ends of a snap ring are not aligned with one
of the cutouts and are installed in the groove correctly.
4. If a worn bushing is to be replaced, the subassembly
containing that bushing must be replaced.
5.Check thrust bearings and races for wear or damage.
Replace if necessary.
6. Use petroleum jelly or vaseline to keep par ts in place.

7A–182 AUTOMATIC TRANSMISSION (AW30-40LE)
REASSEMBLY OF MAJOR COMPONENTS
Disassembly, inspection and reassembly of each
component group have been indicated in the preceding
chapter. Before reassembly, make sure, again, that all
component groups are assembled correctly.
If something wrong is found in a certain component group
during assembly, inspect and repair this group immediately.
GENERAL ASSEMBLY NOTES:
1. The automatic transmission is composed of highly
precision–finished parts, necessitating careful inspection
before assembly because even a small nick could cause
fluid leakage or affect performance.
2. Before assembling new clutch discs and brake bands, soak
them in automatic transmission fluid for at least thir ty
minutes.
3. Apply automatic transmission fluid on the sliding or rotating
surfaces of parts before assembly.
4. Use petroleum jelly to keep small par ts in their places.
5. Do not use adhesive cements on gaskets and similar parts.
6. When assembling the transmission, be sure to use new
gaskets and O–rings.
7. Dry all par ts with compressed air - never use shop rags.
8.Be sure to install the thrust bearings and races in the
correct direction and position.

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–199
REASSEMBLY OF MAJOR COMPONENTS (2)
242RY00006
Reassembly steps
1. Second brake drum gasket
2. Accumulator piston
3. Check valve, spring
4. Valve body
5. Solenoid wiring
6. Oil strainer assembly
7. Oil pan

7A–200 AUTOMATIC TRANSMISSION (AW30-40LE)
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240RY00014
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Important operations
1. Second brake drum gasket
Install a new brake drum gasket to the transmission case.
Individual piston operation inspection
Check for the sound of operation while injecting
compressed air into the oil hole indicated in the figure.
NOTE:
When inspecting the direct clutch, check with the C–0
accumulator piston hole closed. If there is no noise,
disassemble and check the condition of the parts.
A : C–0 Accumulator piston hole
2. Accumulator piston
Coat the O–ring with ATF and install it to the piston.
Install the five springs and four accumulator pistons to the
bore as shown in the figure. 1: OD direct clutch 5: Second coast brake
2: Direct clutch 6. Second brake
3: Forward clutch 7. First and reverse brake
4: OD brake

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–203
244RY00002
244RY00003
240RY00019
240RY00020
6. Oil strainer assembly
Install a new oil strainer assembly with gaskets.
Install the oil strainer with the gaskets to the valve body.
Tighten the four bolts.
7. Oil pan
Install magnet in pan.
Remove any packing material and be careful not to drop oil
on the contacting surfaces of the transmission case and oil
pan.
Apply liquid gasket (TB1281 or its equivalent) to the oil pan
as shown in the figure.
NOTE:
Install the oil pan as soon as the seal packing is applied.
Install and tighten the nineteen bolts.Nꞏm (kgꞏm/lbꞏin)
Torque 10 (1.0/87)
Nꞏm (kgꞏm/lbꞏin)
To r q u e 8 ( 0 . 8 / 6 9 )

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–205
240RY00006
240RY00003
241RY00020
Important operations
2. Converter housing
3. Adapter housing
Oil seal replacement
(1)Using a screwdriver, remove the oil seal.
(2)Apply ATF to a new oil seal lip.
(3)Using special tool, install the oil seal.
Installer:5–8840–2282–0
Remove any gasket material on the contacting surfaces of
the adapter case and transmission case.
Apply liquid gasket (TB1281–B or its equivalent) (1) and
install the apply gaskets (2) to the adapter case as shown
in the figure.
Install the adapter housing to the transmission case.
4. Oil temperature sensor
Install the oil temperature sensor to the transmission case.Nꞏm (kgꞏm/lbꞏft)
To r q u eM10 34 (3.5/25)
M12 57 (5.8/42)
Nꞏm (kgꞏm/lbꞏft)
Torque 34 (3.5/25)
Nꞏm (kgꞏm/lbꞏft)
Torque 15 (1.5/11)