tow OPEL FRONTERA 1998 Owners Manual

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.
247RS007
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–88 AUTOMATIC TRANSMISSION (AW30-40LE)
240RY00026
022RY00001
11. Under cover and flex plate-torque converter bolt
• Remove the under cover.
• Turn the crankshaft to gain access to each bolt.
Remove the six torque cover ter fixing bolts.
NOTE:
New fixing bolts should be replaced for reassembly.
12. Rear mounting nut
• Support transmission with a jack.
• Remove two rear mounting nuts from the 3rd
crossmember.
13. 3rd crossmember
14. Oil level gauge and tube
15. Starter
• Remove the mounting bolts, and pull the star ter toward
the front of the vehicle.
Lay the star ter alongside the engine.
16. Engine-transmission bolt
• Remove engine-transmission fixing bolts.
• Disconnect the breather hose from the breather hose 3
way (W/TOD) or 2 way (WO/TOD).
17. Transmission assembly
NOTE:
Keep the oil pan positioned down.
Be careful not to let the torque converter slide out.

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–193
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252RY00007
252RY00005
Check piston stroke of second coast brake
Place a mark on the second coast brake piston rod as
shown in the figure.
Using wire gage, measure the stroke by applying the
compressed air (4–8kg/cm
2, 57–114 psi or 392–785kPa)
as shown in the figure.
If the values are nonstandard, check for an improper
installation.
21. Race
Coat the race with petroleum jelly and install it onto the
overdrive suppor t assembly.
22. OD support
Aim the bolt and oil holes of the overdrive suppor t toward
the valve hole side, and align them with the bolt hole of the
transmission case and insert.mm (in.)
Piston stroke1.5–3.0
(0.059–0.118)
Race diameter (Reference) mm (in.)
Inside Outside
Race 36.8 (1.450) 50.9 (2.004)