Technical
Specifications

911T - 911E - 911S
69, 70, 71 Models
FORWARD

We have compiled this booklet for the Porsche mechanic to provide him with data and specifications applied in rendering proper service. 

We took into account that service operations outlined in the workshop manual are known to the user. The contents of this booklet is arranged to correspond with subject groups in the workshop manual.

When using this booklet, also refer to technical bulletins since the data are subject to change.

Contents

Vehicle Type Classification Code
Chassis, Engine, and Transmission Number Code

1

Engine

Technical Data for Type 911 Vehicles, 1969-Models
Specifications for 2.2 Liter Engines from 1970-Models
Tolerances and Wear Limits -Engine
Crankshaft and Bearings
Crankcase
Connecting Rods
Connecting Rod Weight Groups
Matching Intermediate Shaft and Crankcase
Intermediate Shaft
Timing Chain Housing
Camshaft Housing and Camshafts
Measuring Sprocket Wheel Parallel Alignment
Piston and Cylinder Specifications (dimensions, weights and markings)
Valve Dimensions
Specifications for Installing Valve Guides
Specifications for Installing Valve Seat Inserts
Angles and Dimensions for Valve Seat Inserts
Valve Springs and Installation Dimensions
Camshafts for Type 901 and 911 Engines
Clutch
Machining Flywheel
Ignition Timing Data
Adjustment Valves for Distributors
Torque Values for Important Engine Fasteners

2

Fuel System

Fuel Pump
Carburetor Specifications
Fuel Injection System Specifications

3

Transmission

Transmission Type and Specification Table
Ring and Pinion Adjustment Data
Transmission Tolerances
Torque Values for Transmission Fasteners
Torque Values for Sportomatic Transmission Fasteners
Technical Data for Sportomatic

4

Front Axle and Steering

Chassis Specifications
Front Axle and Steering
Tolerances and Adjustment Specifications
Torque Values for Front Axle Fasteners

5

Rear Axle

Technical Data
Adjustment Values and Tolerances
Torque Specifications for Rear Axle Fasteners

6

Brakes

Reconditioning Dimensions and Wear Limits
Dual-Circuit Brake System - Brake Master Cylinder
Torque Specifications for Disc Brake Fasteners
Tandem Brake Master Cylinder - USA Version
Wheel Rims and Tires

9

Electrical Systems

Electrical System Specifications
Bulb Chart
Fuse Chart
Technical Data for Auxiliary Gasoline Combustion Heater
Technical Data for Porsche Air Conditioner

10 

General Specifications

Weights and Measures
Filing Capacities and Performance Data
Body Dimensions for Type 911

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