Porsche 911 TURBO - 1975 WORSHOP User manual

GENERAL Technical Date Page0.1
REPAIR GROUP
10
13
15
17
19
20
21
25
26
27
28
ENGINE
Engine-crankcase
Engine-Crankshaft, and moving parts
Engine-Cylinder Head, Valve drive
Engine-Lubrication
Engine-Cooling
Fuel Supply system
Turbocharger
Fuel system
ExhaustSystem
Starter, Power Supply
Ignition System
30
34
35
39
Clutch, Control
Mech.gear-shiftsystem-actuat., hous.
Mech.gear-shiftsystem-Gears, Shafts
Differential
TRAN S MISSION
40
4":>'
44
47
48
CHASSIS
Front Wheel Suspension
RearWheel Suspension
Wheels, Tires, measuringvehicle
Brakes,-Hydraulic -system
Steering
50
51
53
55
57
60
63
64
66
68
BODY
Body-Front Section
Body-Center Section
Body-RearSection
Lids
Doors
Sliding Roof
Bumpers
Glasses
Exterior equipment
Interior equipment
HEATING. VENTILATION.
AIR CONDITIONING Heater
Air Conditioaer 80
87
90
92
94
96
97
Instruments, Radio
Windshield Wipersand Washer
Exterior Lights
Interior Lights
Wiring
ELECTRICS

911 turbo Alphabetical Index Volume II
Page
Body, front section
..50-4
..50-1
..50-3
..50-5
..50-7
..50-7a
Body platform, front -type 911-turboBody platform and front section gauge P 863Dimensions for body platform.Repair control dimensions 911-turboRepair control dimensions 911-turbo, Model 78 onwards
Straightening attachments for type 911-turbo -ENS 77.303
Body, rear section
Transverse rear axle tube 911-turbo 53-1
Hood
Engine hood, removing and installing from Model 78 onward 55-1
Exterior equipment
66-3
66-1
Fitting stoneguard foil to rear turbo fender
Fitting turbo emblem.
Interior equipment
Central console, removing and installing 68-1
Heating
Automatic heating control, removing and installing
Automatic heating control, checking. 00-1
00-5
Fittings, instruments, radio
9()-3
9()-4
9()~1
Electronic tachometer, checking.Electronic tachometer, removing and installing generator
Position of relays in the vehicle.
Alphabetical Index
Printed in Germany -VII, 1989
1

Volume II Alphabetical Index 911 turbo
Page
97-1
97-13
97-19
97-17
97-29
97-25
97-23
97-7
97-31
97-11
97-9
97-27
97-5
97-61
97-79
97-115
97-153
97-197
Wiring
Current-flow diagram -911 turbo, Model 76Current-flow diagram -911 turbo, Model 77Current-flow diagram -911 turbo, Model 78Additional current-flow diagram -exhaust temperature monitoring -type 911 turbo
Additional current-flow diagram -automatic heating control.Additional current-flow diagram -electric windows.Additional current-flow diagram -rear window wiper.Additional current-flow diagram -refrigerant system with front condenser. ...
Additional current-flow diagram -air-conditioning system.Additional current-flow diagram -engine compartment light.Additional current-flow diagram -fog lamp.Additional current-flow diagram -headlight cleaning system.Additional current-flow diagram -intermittent wiper c!rcuit, Model 76Additional circuit diagram -alarm system, Model 85Circuit diagram, Model 86Circuitdiagram,ModeI87 Circuitdiagram,ModeI88Circuitdiagram,ModeI89
Alphabetical Index
Printed in Germany -VII, 1989
2

Body -Front Section
FLOOR/FRAME CHECKPOINTS AND FRONT BODY SECnON GAUGES P 863 AND 863a
As already announcedin the 1975 model information, checkpoints are welded to the floor/frame
assemblyfrom 1975 models. The extent of damage is quickly diagnosedwith the help of these
checkpoints and front body section gauge P683 a (consisting of former gauge P863 + additional
adaptor).
The carrier pin of Type 930 Turbo is 21 mm higher. When measuring with front body section
gauge P863,the distance between the upper edgeof the gauge and the collar on the carrier pin
is 21 mm or, with the adaptor installed onthe carrier pin, 13 rom.
The gauge can alsobe usedto repair light front section damage (upsetsupto 10 mm). Cars with
damage of this type no longer need to be installed on a straightening bench.
Installation of the gauge requires that the wheels, the guard, the carrier and the control armsbe
removed. The gauge is then bolted to the front axle take-up points and front floor/frame checkpoints,
asillustrated above.
The distance from the rear floor/frame checkpoints and rear axle take-up points for the transmission
to the engine suspensionis checked with a measuringstaff.
This gauge is for checking only. It mustbe removed for straightening and welding operations
to prevent it from becoming bent through body distortions.
Note:
Printed in Germany 50-1
Floor/Frame and Front BodySection Gauge

50 Body
FLOOR/FRAME ASSEMBLY DRAWING
Printed in Germany
Floor/F'rameAssemblyDrawing
50-2

Body
Dim. Designation mm
+
565.5 -2
AControl arm take-up, front, inner
!
1
Carrier take-up 726
! 2
Front floor plate checkpoints
c1200
! 2
DRear floor plate checkpoints 850
! 3
EEngine suspension 752
!. 3
FFront floor/inner control arm checkpoint 1327
!. 3
Rearfloor/ carrier checkpoint 1868 G
+
1528.5- 3
HAxle tube transmission/front. floor checkpoint
1346 "!. 3
1374
Axle tube transmission/inner engine suspension from 1978models 1557 :!: 3
1582
Rear floor/inner engine suspensioncheckpointKfrom 1978models
"to 3
1041
LFront floor/inner control arm checkpoint
+
1215 -2
Front floor/rear floor checkpoints
M
1355 ! 3
13~4_-
Rearfloor/inner engine suspensioncheckpoints
NU91ILlll8models
0 Axle tube transmission/inner engine suspension 1245 :: 3
1273
All distancesare measuredfrom center of hole andhorizontal.
Note
Distancesto engine suspensionbolts are measureddirect (at an angle).
Note
Lengthsmeasuredonthe left and right may not exceed the specified tolerances in difference
to each other.

Body -Front
FLOOR/FRAME ASSEMBLY TYPE 930 TURBO
In comparisonto the Type 911, the carrier pin <i the Type 930 Turbo is 21 mm higher. This has
causedchangesto the floor/frame assemblyin the area marked in white.
The border on the wheelhouseand floor plate is cut out about 70'mm higher than the control arm
to allow accessibility.
Note
If new wheelhousingsare required for repairs. make theseopeningsin the borders on both sidesand
weld the seamsto the floor plate.
Front Floor Assembly for Type 930 Turbo
50-4 Printed in Germany

Body
')"'
REPAIR REFERENCE POINTS FOR 930-turbo
Repair Reference Points for 930 Turbo 50-5