Opel Frontera UBS. Service manual — part 2507
7A–78
AUTOMATIC TRANSMISSION (4L30–E)
D
Install overrun clutch piston assembly (13). Use the
outer installer while pushing piston into drum (14).
D
Remove the installer.
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3. Install diaphragm spring (12).
4. Install overrun clutch release spring retainer (11) (lip
faces upwards), overrun roller clutch assembly (10),
and cam (9).
5. Place snap ring loosely on spring retainer.
D
Hold the 5–8840–2275–0 (J–23327–91)
compressor in a vise and compress piston return
spring with compressor.
D
Set snap ring (8) in ring groove.
D
Remove the compressor.
6. Install clutch plates (7), start with steel plate and
alternate with lined plates.
7. Install backing plate (6).
8. Install snap ring (5).
9. Install overdrive sun gear with countersink pointing
downwards.
10. Install the overdrive carrier assembly (2).
NOTE: Turn the assembly in a counter–clockwise
direction only until roller clutch enters the outer race.
After installation, rotate the assembly and listen for loose
rollers.
11. Install turbine shaft (4) and snap ring (1).
7A–79
AUTOMATIC TRANSMISSION (4L30–E)
Main Data And Specification
General Specifications
Remarks
Model
THM 4L30–E
Engine
V6 3.2L 6VD1 or V6 3.5L 6VE1
DOHC
Type
Automatic four speed overdrive in
4th gear lock–up clutch torque
converter
Shift control
Hydraulic
Control systems
Shift pattern
Electronic
Control systems
Shift quality
Electronic
Lock–up clutch
Electronic
1st
2.856
2nd
1.618
Gear ratio
3rd
1.000
4th (O/D)
0.723
Reverse
2.000
Gear set
Noiseless, high torque capability
Oil used
Name
ATF DEXRON
–III
Oil used
Q’ty liter (qt)
8.6 (9.1)
Torque converter
2,100
±
150
Stall speed (rpm)
Reverse clutch
RC
4
Second clutch
C2
6
Number of discs
Third clutch
C3
6
Number of discs
Brake band
Double wrap
Fourth clutch
C4
2
Number of discs
Overrun clutch
OC
1
Number of discs
Overdrive
OFW
10
Number of rollers
Principal
PFW
26
Number of sprags
Input sun gear
30
Pinion gear
19
Ravigneaux plan-
Long pinion
23
g
etary gear set
Ring gear
90
Long pinion
19
Number of teeth
Output sun gear
46
O
d i
l
Sun gear
31
Overdrive plane-
tary gear set
Pinion gear
24
tary gear set
Ring gear
81
7A–80
AUTOMATIC TRANSMISSION (4L30–E)
Torque Specifications
E07RY00011
7A–81
AUTOMATIC TRANSMISSION (4L30–E)
E07RW079
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