1973 OPEL GT-R Service Manual

IMPORTANT SAFETY NOTICE
Proper service and repair is important to the safe, reliable operation of all motor vehicles.
The service procedures recommended by BUICK and described in this service manual are
effective methods for performing service operations. Some of these service operationsrequire the use of tools specially designed for the purpose. The special tools should be used
when and as recommended.It is important to note that some warnings against the use of specific service methods that
can damage the vehicle or render it unsafe are stated in this service manual. It is also
important to understand these warnings are not exhaustive. BUICK could not possibly
know, evaluate and advise the service trade of all conceivable ways in which service might be
dbne or of the possible hazardous consequences of each way. Consequently, BUICK has not
undertaken any such broad evaluation. Accordingly, anyone who uses a service procedure ortool which is not recommended by BUICK must first satisfy himself thoroughly that neither
his safety nor vehicle safety will be jeopardized by the service method he selects.

/
I
/j BUICK MOTOR DIVISIONGENERAL MOTORS CORPORATIONIFLINT, MICHIGAN 48550
,
0 GENERAL MOTORS CORPORATION, 1972
Litho in U.S.A.

1973
GTOPEL1900
MANTA
CHASSISSERVICE
MANUAL
This manual contains service informationfor the 1973 Opel 1900, Manta and GT
models. Refer to the introduction for
adescription of the arrangement of this
manual for locating desired information
easily.All
infotmation, illustrations and specifi-cations contained in this manual are basedon the latest product information aveil-able at the time of publication approval.
Therefore, the right is reserved to make
changes at any time without notice.TABLE OF CONTENTS
SUBJECT
I I
1ELECTRICAL
I I2FRAME AND BUMPERS
I I3SUSPENSION AND STEERING
I I4REAR AXLE
I I5BRAKES
I I
6ENGINE
I I7TRANSMISSION
I I
8CHASSIS SHEET METAL
I I
9ACCESSORIES

The 1973 Opel Chassis Service MayI has been completely revised with respect to layout, format and information content
in a” attempt
to provide you “The Technician” with a tiore logical and usable publication. An example of the new grouping
layout 6 exhibited on the preceding
page. Each wow is rubdivided as follows:
Grouo 1
_. _
Subiect IIContents.
0
General InformationIGeneral InformationLifting
Maintenance and Lubrication
1ElectricalBattery
Starting System
lgriition System
Charging System
Washers and Wipers
Lighting Systems
Signal SystemI
Instrument Panel
Gauges
Wiring Diagrams
2
Body and Bumpers:General Body InformationI
Frame & Body Mountings
Windows
& Window Moldings
DONS
Rear Compartment LidRoof &Sun Roof
Seat?., Interior Trim & Headlining
Bumpers.
3Suspension and Steering
Front Suspension
Steering Linkages1Front End Alignment
Steering Gear
Steering Column
Rear Suspension
Wheels and Tires
4
Propelley Shaft & Rear AxlePropeller Shaft & Central Joint
Differential
5Brakes ~Power Booster and Master Cylinder
Front Disc BrakeI
Rear Drum Brake
6EngineEngine Mechanical and Mounts
Cooling System
Fuel System
Exhaust Systems
Carburetor and Throttle Linkage
Emission Control Systems
Tune-up
7TransmissionClutch
Manual Transmission
Automatic Transmission
BChassis Sheet MetalHood, Fenders and Grille
9
Accessol;iesHeaterAirConditioning
Radio

INTRODUCTION
The 1973 Opel Service Manual includes information on the Opel 1900,
Manta and GT. It is organized to correspond with current servicing tech-
niques. The various chassis components and systems have been classified
into the nine (9) GROUPS.Every GROUP contains one or more SECTIONS. Each SECTION deals with aspecific version of a component or system.
The service information included in a SECTION is divided into five (5) basic
DIVISIONS. The titles of each DIVISION are:
Description and Operation
Trouble Diagnosis
Maintenance and Adjustments
Major Repair
SpLificaiions
A DIVISION contains one or more PARAGRAPHS which can be identified bytheir specific headings.
SUB-PARAGRAPHS are used when necessary for clarity or to provide distinc-tion between component procedures.
SPECIAL TOOLS
References are made throughout the Manual to special tool numbers, desig-nated by the prefix letter “J”. These tools are manufactured by the
Kent-
Moore Corporation, Inc. If equivalent special tools are not available locally,they may be obtained through:
Kent-Moore Corporation, Inc.
28635 Mound Road
Warren, Michigan 46092LOCATING DESIRED INFORMATION
To locate any desired information, locate the proper GROUP listed on the
second page of the Manual. Bend the Manual until the black tab on the first
page of the GROUP can be seen in line with the GROUP title on the secondpage. The first page of the GROUP lists the SECTIONS contained therein.
Turn to the proper SECTION, locate the desired DIVISION and note the
PARAGRAPH containing the information you are seeking.

GENERAL
INFORMATIONGROUP 0
SectionOA
OB
ocTitle
Page
General
InformationOA-1Vehicle Lifting
Points06-4Maintenance and Lubrication. OC-5