Porsche 930 TURBO - 1989 GENERAL DATA User manual

General Data
TRANSMISSION TYPE 930
The following transmissionsare installed in the 930 Turbo:
930/30 -4-speed with rear axle final drive 9/38 (standard)
930/32 -4-speed with rear axle final drive 9/36 (not for USA)
The following transmissionis installed from 1977Models:
930/33 -4-speed with a final drive ratio of 9/38
From 1978Models with the following transmission:
930/34 -4 gears with final drive ratio of9/38

Generaldata 911 turbo
Five-speed transmission G50/50
88-227
A new five-speed transmission has been installed in the 911 Turbo worldwide from Model 89 onward.
This gearbox corresponds to the G 50/00 Carrera gearbox with regards to construction and repair.
The gearbox has been reinforced, however, and the transmission ratios modified to suit the
high engine performance of the turbo engine.
Refer to the Carrera workshop manual (Page 30-0102) for maintenance information.
Five-speed transmission G50/50
Printed in Germany -VII, 1989
30-02

General Data
MANUAL TRANSMISSION TORQUE SPECIFICATIONS
Location Designation Threads Material Torque
NM (kpm)
Drive shaft Nut M 30xl.5 8.8 210 -230
(21.0 -23.0)
Drive shaft Nut M20xl.5 C 35 V 160-180
(16-18)
Driven shaft Nut M24xl.5 8190-100
(19-20)
Stub axle
Stub axle Stretch bolt
Hex hd screw M IOxl.5
MIOu. 5 8.8
8.8 (2. 6 -3. 0)
(3. 0 -4. 6)
26-30
39-46
Transm. case Vent M 14xl.5 9 S 20 K 20-30
(2 -3)
Gearshift rod Conicalscr. M 8xl.25 8.8 23-26
(2.3-2.6)
Shiftcover Mid-grip nut M 8xl.25 X 12 Cr
No18.8 22-25
(2.2-2.5)
Backuplight
switch
I
Gear housing M18xl.5 MS 25-35
(2.5-3.5)
I
Gearshift
forks M6xl.O 8.8 9-11(0.9-1.1)
Hex nut
M 8xl.25 822-25
(2.2-2.5)
I
Clamp, gears, transm.I
case, front and side
covers
Hex nut
Shift lock,
transm. case Hex hd screw M lOxl.5 8.8 15-18
(1.5-1.8)
24-26
(2.4-2.6)
Hexhd screw M 8xl.25 8.8
Selector
forks
11.9 135-140
(13.5-14)
Ring gear,
differential Hex hd screw M12xl.25
12.9 150-160
(15-16)
Hex hd screw M12xl.25
5t 37-5.8 20-25
(2-2.5)
Plug with
magnet M24x1.5
Con. 1:16
Transm. case
oil drain
5.8 20-25
(2-2.5)
Plug M 30x1.5
Con. 1:16
Gear housing
Oil filler
5.8 20-25
(2-2.5)
Plug M 16xl.5
Reverse gear
Lock
Technical Data 30-03
Printed in Germany -IV. 1981

Location Designation Threads Material Torque
Nm (kpm)
I
Guide tube Capscrew M6xl.O 8.8 8-10
(0.8-1.0)
Clutch and
startergear Capscrew M8xl.O 8.8 20-'-5
(2.0-2.5)
Starter Hex nut MlOxl.5 846-50
(4.6-5.0)
Mech.controls
Holderto base Hex hd screw M6 8.8 6
(0.6)
Baseto tunnel Sockethead
capscrew M8 8.8 21
(2.1)
ICon. screwin
shift rod end Con. screw M8 8.8 15
(1.5)
I
COIl. screw in
coupling Con. screw M8 8.8 15
(1.5)
Clamp Hex hd screw M8 8.8 25
(2.5)
30-04 Technical Data Printed in Germany

General
GeneralData Manual Transm. 930/30, 930/32. 930/33 and
930/34
Ratio
1st gear
2nd gear
3rd gear
4th gear
Reverse
16/36 i = 2.25
23/30 i = 1.3043
28/25 i = 0.8929
32/21 i = 0.6563 (32/20 i = 0.625)
16/39 i = 2.4375
Climbing in 0;0
abo
1st
2nd
3rd
4th
Spiralteethbevelgearwheels
Finaldrive
Final drive ratio
9/38 i = 4.222 (optional 9/36
9/38 i = 4.222
9/38 i = 4.222
= 4)
1976models
1977models
1978 models to 1981 models
Via double joint shaftsto rear wheels
Powertransmission
53 kg
Transmissionweight
(dry) w/0 starter
Approx. 3.7 1SAE90 oil of API Classification
GL5 (or Mil-L 2105 B)
Filling capacity
Note: Deviating values for transmissiontype 930/34 are in brackets.
30 -05
Specifications
Printed in Germany -IV. 1981
ve
100
47
27
16
gear
gear
gear
gear

General Data
TechnicalData
Printed in Germany -III. 1978 30-07

1
-III, 1978Printed in Germany Removing and Installing Clutch Disc 30 -1

30 Clutch, Control
Removing andInstalling Clutch Disc Printed in Germany
30 -2

Clutch, Control
Notes when
No. Description I
Qty. Remarks
Removing Installing
1Clutch bolts 6Unscrew evenly Tightenevenlyand
diagonally torque:2.0-2.5 mkg
(14 -18. 5 ft Ibs)
la Clutchbolts
DIN 931 from
Trans. No. 776
0013 or 776 1011
9Unscrewevenly Tightenevenlyand
diagonally. torque: 2,0-2, 5 mkg
(14 -18, 5 ft Ibs)
2Washer 6Replace, if needed
3Ring gear 1
Check for wear
4Pressureplate 1
5Throwout bearing 1 Don't wash. Wipe
with dryrag. Coat
guide tube contact
surface with MoS
lubricant. 2
Don't subject to
pressure-danger
of damage!
6Clutch disc Check for wear.
Center with clutch
centering tool 9102
1
Removing and Installing Clutch Disc 30 -3
Printed in Germany -IV, 1981

Clutch, Control
REMOVING AND INSTALLING
Removing Note
1. Hold flywheel with toothed segmentP201 a
and spacersleeve. Make sure that spacersleeve
fits engine with adequate clearance.
Clutch linings cannot be replaced.
If applicable, the entire disc is to be replaced.
2. Loosenbolts holding clutch pressureplate to
flywheel evenly and diagonally one or two
threads, until the spring pressurestops(pre-
vents distortion on clutch pressureplate).
5. Checkdiscwithlining for lateral runout.
Permissiblelateral runouton225mm .
diameterismax. 0.6 mm.
CHECKING CLUTCH DISC
1. Checkteeth. The clutchdisc mustmove
easilyin axial direction ondrive shaftwith-
outradialplay.
2. Check rivets. Replace clutch disc if in
doubt.
3. Check clutch lining. If clutch lining hasoil
spots, is burnt, torn or worn at spots, install
a newdisc.
4. Checklining thickness.Thicknessof di'lc
+
with rivetedlining (notension)is10.1 -
0.3 mm. Wearlimit (notension)is 8.5 mm
for symmetricalwear.
Printed in Germany
Removing and Installing Clutch Disc
30 -4