battery OPEL GT-R 1973 Owner's Manual

1 E- 381973 OPEL SERVICE MANUAL
4. Turn switch on to see if wiper niotor will function
with wiper linkage’detached. If wiper motor will ndt
run, disconnect connector at wiper motor and co?-
nect hot lead from battery to terminal No. 53 onwiper motor. If wiper motor runs, the wiper switch
is faulty or there is an break in the lead wire. If wiper
motor still will not run, remove and bench test.
MAJOR REPAIRWIPER TRANSMISSIONS
Removal (1900 and Manta)1. Remove wiper blade (2).
2. Remove the wiper transmission retaining nut,
washer, and rubber seal ring. See .Figure lE-1.
Figure lE-1 Crank Arm Retaining Nut3. Remove instrument cluster housing.
If only left wiper transmission is to be serviced, it can
be done without removing any ‘other instrument
panel components. If the right side, or both, trans-
missions are to be serviced, then
it will be necessary
for complete instrument panel removal. On the Ral-
lye models, the gauge carrier must also be remove&Qn all
1900 and Manta Models the defroster ducts
are secured to the instrument panel cover, by two (‘2)
spring clips, and should not be removed from
dayhcover. Remove cover and duct as, a unit.
4. Remove retaining clips from transmission co;-netting rod pins. Pull connecting rods off pins. See
Item “A”, Figure lE-2.
5. Remove the screws securing the wiper transmis-
sion to the inner side of the cowl (Items “B”, Figuie
13), and remove the transmission assemblies.I
Figure lE-2 Connecting Rod Retaining Clips
Installation1. Place wiper transmissions into position at cowl
and install holding screws.
2. Push connecting rods onto transmission cranking
arm pins and install retaining clips. See Figure lE-2,
Item “A”.
3. Reinstall dash and instrument cluster parts.
4.
1nst:all the rubber seal ring, washer, and transmis-
sion retaining nut. See Figure IE-1.
5. Install wiper blades and check the position of the
blades in the park position. See Figure lE-3.
Figure lE-3 Wiper Blades in Park Position
Removal and Installation of GT W/per Transmission1. Remove nuts and remove both wiper
arms. See
Figure lE-4.
2. Remove three (3) bolts from each windshield

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LIGHTING SYSTEMSlF- 53
/Removal if Back-Up Lamp1. Remode back-up lens.
2.
Remo+ lamp housing.
3. Discodnect electrical wires. See FigurelF-20
Removal of Headlamp Switch1. Completely remove left headlamp and headlamp
housing.
2. Remove switch from base plate. See Figure lF-21.
Fibure lF-20 Removal of Back-Up Light
Interior djght RemovalI
1. Disco@ect battery.
2. Remohe lens.
3.
RemoF base plate by removing two (2) screws.
4. Unplulg wires.
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InstallationI
1. Connect wires to proper plugs.
2. Install! base plate.
3. Install! lens.
4. Con&t battery.
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,Figure
1 F-2 1 Light Switch Positions
Installation1. Install switch to base plate.
2. Install left headlamp and housing.
Door Jam Switch Removal1. Remove door jam switch attaching screws.
2. Remove switch and disconnect wire.
Installation1. Connect wire to switch.
2. Replace switch on door jam with attaching screw.

Tigure lG-2 Horn Button and Contact
HAZARD; WARNING FLASHER
The hazard warning flasher is operated by the button
on the
toi, of the steering column. When the button
is
press&@ down and released, all four turn signal
lights
WIU flash. To turn the flasher system off, press
down
oni the button and release. When the hazard
warning
hystem is operating, a flashing light in the
iristrumeht cluster will operate. The hazard warning
flasher
&itch is part of the directional signal switch.
BRAKE $YSTEM WARNING LIGHT
The brak; system warning light is located in the left
side of
tpe instrument cluster assembly. The light
will
come on when the brake pedal is depressed and
the ignition is on if there is a hydraulic leak in the
brake system. The light will go out when the foot is
removed!from the brake pedal. The light will also
glow with the parking brake applied and the ignition
on. (On
Iautomatic transmission equipped vehicles,
light is
a! reminder to release parking brake; and on
manual
fransmission equipped vehicles, light glows
when
the clutch pedal needs adjustment,)
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DlAGNfXlS
SIGNAL SYSTEM
The indiLator light on the dash will show defects in
the directional signal system as follows:
1.
Indic<tor light on dash gives only one quick flash.
One of
tie switched-on directional signal lamp bulbs
is defective. The other signal lamp will continue to
flash.
Thi most common defect is a burned out bulb.
2.
Indicdtor light on dash stays on when directional
signal
leier is switched to either side. Check flasher
unit. I
SIGNAL SYSTEMSlG- 55
MAJOR REPAIR
Removing and Installing Directional Signal Switch
Proceed as outlined in Group 3, Section E.
HORN REMOVAL
1. Remove grille (GT only).
2. Remove horn bracket attaching bolt.
3. Disconnect wires and remove horn.
Installation
1. Install horn with bracket attaching bolt.
2. Connect horn wire.
3. Install grille (GT only).
Removing Horn Contact
1. Disconnect battery.
2. Remove horn cap.
3. Bend lockplate tabs down and remove steering
wheel nut, lockplate, and washer.
4. Mark shaft and wheel hub for reassembly align-
ment.
5. Remove steering wheel using Wheel Puller
J-
21686.
6. Remove horn contact from wheel.
installation
1. Replace horn contact.
2. Before installing steering wheel, lubricate return
pin and slide area on directional signal switch return
cams and contact ring.
3. With steering wheel properly aligned to shaft, in-
stall washer, lockplate, and nut. Torque nut to 15
lb.ft.
4. Bend up lockplate tab and install horn cap.
5. Connect battery.

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IINSTRUMENT PANELlH- 59
Figure 1 H-2
- GT Instrument and Switch Arrangement
The Wihdshield Wipers have two-speed operation.
By pushing the lower half of the switch inward to the
first stop, the wipers will operate at half speed and
by deprbssing to the second stop will provide full
speed oieration. When the switch is returned to the
off posit/on, the wiper blades automatically return to
their park position.
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The El<ctrically Heated Rear Window Switch is
standarFf whether or not the vehicle is equipped with
this optlpn. The engine must be running before
suffi-cient current can be generated to energize this circuit
even th6ugh the switch is depressed to the “ON”
position! When the window is being heated, a warm-
ing light’on the instrument panel will glow. This light
is locate? below the left ventilation inlet.
The
Heiter Blower Switch is a three position switch.
By depressing the lower half of the switch to the first
stop,
th& blower will operate at low speed. Whendepressdd to the second stop, the blower will operate
at high ipeed.
Four Way Hezrerd Warning Flasher SwitchThe
hazard warning flasher switch is located below
the heater controls in the center console. By
depress-ing the lower half of the switch, all four turn- signal
lamps flash at the same time. Although this system
makes use of the regulat turn signal system, it has a
separate feed wire to the switch which allows for its
operation even with the ignition switch and doors
locked. No vehicle should be driven with this system
in operation because of its universal meaning “This
Vehicle Is Not Moving”. To turn the system off,
simply depress the upper half of the switch.
MAJOR REPAIR
Removal of Instrument Cluster Housing Assembly.Opel 1900 Manta
Before starting any instrument panel repair, always
disconnect battery ground cable first.
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IINSTRUMENT PANELlH- 61Figwe 1 H-7
- Disconnecting Cluster Wires
4. Install instrument cluster trim plate and replace
two screw and plugs.
5. Con&t speed0 cable by turning coupling clock-
wise. 1
6. Install light
.switch button and heater control
knobs. I
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7. Con+ct battery cable.
Removidg Windshield Wiper Switch - Opel 1900Manta I
1.
Rem* instrument cluster trim plate.
2. Corndress retaining clips and remove switch. See
Figure iH-8.
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Figure lH-8 . Removing Windshield Wiper Switch3. Disconnect wiring connector.
Installation1. Connect wiring to switch.
2. Snap switch back into panel.
3. Replace instrument cluster trim plate.
Removing Instrument Cluster Bulbs - Opel 1900.
Manta1. Remove instrument cluster assembly.
2. Replace bulbs from back ofcluster. See Figure
lH-
9.Figure lH-9 Removing Instrument
Clu’ster Bulbs
Installation1. Replace bulbs in cluster.
2. Replace instrument cluster assembly.
Removing and Installing Ignition SwitchRefer to Group 3, Section F.
Removal of Instrument Cluster Housing Assembly.
GTDisconnect battery before making any electrical re-
pairs.
1. Disconnect battery cable.
2. Remove right access cover and remove screw. See
Figure lH-10.

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,INSTRUMENT PANELlH-63Figure l;H-15 Removing Instrument Cluster AssemblyFibure1 H-l 6 Disconnecting Radio Wires
14. Disdonnect antenna lead-in at right lower corner
of radio!
15. Pull’ cluster housing out and turn sideways to
remove
&~y instrument gauge or switches.
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lnstallaiion
CAUTlOI$ Fasteners in subparagraph B are impor-
tant attaching parts in that they coo/d
affect the
perform>nce of vital components and systems, and-
/or
cou!d result in major repair expense.They must
be
repraced with one of the same part number, or
with an equivalent part if replacement becomes
necessa?y. Do not use a replacement part of lesser
quality
br substitute design. Torque values must be
used as
&ified during reassembly to assure proper
retention of these parts.
1. Plug antenna lead-in cable and power source to
radio. I
2. Put i&trument cluster in position and replace six
(6) screbs in cluster.3. Connect speedometer cable.
4. Raise steering column into position and install hex
head
bolt% Be sure to install ground wire. Tighten
hex head bolts to 14 lb.ft.
5. Tighten tear lock bolts until hex head of bolt is
torn off.
6. Connect ignition and directional signal wire set
plugs.
7. Install flasher unit.
8. Replace screws in right and left lower instrument
panel and replace both access covers.
9. Connect battery cable.
Removal of Combined Switch Assemblies. GT1. Remove instrument cluster.
2. Turn instrument cluster to the side to remove
switch assembly.
3. Remove switch by removing two retaining nuts.
See Figure lH-17.
4. Remove wiring from switch.
Figure 1 H-l 7 Removing Switches
Installation1. Plug wiring into switch.
2. Install switch on panel.
3. Install instrument cluster.

r
2UREDp
IM
BRNIWHI
BUZZER
3 CLOSED POSlTlONl
/-
14 RED - TO STEERING
COLUMN CONN.
20 RED
12 RED FROM BATTERY--18 GRAY--12 RED
-I
J
DOME LIGHT
&SWITCH1
1
.,_ &,,,.~~
STEER I NG
COLUMN
CONNECTORTRUNK LIGHT?&SWITCH
IGNITION
SWITCH‘\BUZZER SWITCH(HELD CLOSED WITH
KEY IN “OFF” & “LOCK”POSITION1
3OlJll

DOORSZD- 21
RIGHTLEFT ~-ZD-27
Figure ZD-27 Cables Wound On Regulators
Installation - Right DoorIn clockwise direction, wind cable onto pulley up to
the shoulder and clamp it behind lug. See Figure2D-27.
REMOVING AND INSTALLING
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TAILGATE HINGES
Removal1. Remove screws securing hinge trim panel covering
tailgate binges and lift out trim panel. See Figure
2D-28.2. Disconnect battery, remove tail
te trun pad, and
withdraw wiring from tailgate.
u3. Mark position of tailgate hinges on tailgate,
remove bolts securing tailgate to hinges and lift off
tailgate.
,’HINGE TRIM
PANEL1IFigure ZD-28 Removing Tailgate Hinge Trim Panel
4. Release and remove torque rods. See Figure 2D-
29.Figure ZD-29 Tailgate Torque Rods
5. Remove bolts securing tailgate hinges to roof
panel and lift out tailgate hinges.
Installation1. Install tailgate hinges to roof panel and secure
with bolts.
2. Install torque rods. Installation of torque rods may
be facilitated by using vise-grip pliers to work torque
rod end over catch.
3. Install tailgate to tailgate hinges.
4. Install wiring to tailgate
5. Install tailgate trim pad and tailgate hinges panel
COVehg.6. Connect battery

SEATS, INTERIOR TRIM AND HEADLININGZG-35
2. Push off side panel trim pad. Trim pad is held in
position by a retaining button.
REMOVAL AND INSTALLATIONOF HEADLINING
Removal
1. Disconnect battery.
2. Lift out rear seat cushion (sedans only).
3. From trunk area, loosen tabs holding cardboard
against rear seat cross brace and lift out cardboard
(sedans only).
4. Pry up two tabs holding lower portion of rear seat
back in position, swing back of seat forward and lift
out (sedans only).
5. From trunk area pry out parcel shelf plastic retain-
ers and lift out parcel shelf (sedans only).
6. Remove rear-view mirror, sun visors, interior
lamp, assist straps and coat hooks. Remove front and
rear windows on all but Wagon Models. On Wagons,
remove the front window and the quarter windows.
7. Work door opening pinchweld finishing strip
away from pinchweld as far as necessary to expose
edge of headlining.
8. Start at: left or right windshield pillar and pry
headlining loose.
9. Roll back headlining to expose metal tabs securing
headlining listing wire to roof and unhook headhn-
ing front listing wire from metal tabs using a blunt
edge tool.
10. Pull loose the edges of headlining cemented to
door openings, rear quarter window openings, rear
quarter pillar and from under rear window rubber
channel. On rear quarter pillars, slightly bend down
cardboard of rear quarter trim pad to facilitate re-
moval. During removal, special care should be taken
not to tear headlining at seams.
11. After edges of headlining have been pulled loose,
tilt remaining listing wires with headlining forward
or rearward and pull listing wires free from side roof
rails. Lift out headlining and listing wires.
Installation1. Check secureness of noise insulation pad on inside
of roof panel and recement as necessary using asphalt
cement. If headlining is to be replaced, insert listing
wires into headlining according to their markings.
Progressing from the front listing wire to the rear
wire, the left ends of the wires are color coded as
follows:1st listing wire
- No marking, wire is thinner than
other wires
2nd listing wire
- Red
3rd listing wire
- Blue
4th listing wire
_ Green
5th listing wire
- Brown
6th listing wire
- White
2. Install 1st listing wire ends into retainer slots in-
side roof rails and hook listing wire into six metal
tabs above windshield. Lightly bend tabs with a ham-
mer as shown in Figure
2G-8.
HEAOLlN’lNdA-----
26-8Figure
2G-8 Headlining With 1st Listing Wire Hooked
Onto Metal Tabs
LISTINGWIRE
SECTIOND-D
4 26-9Figure 2G-9 2nd and 5th Listing Wire Attachment

SEATS, INTERIOR TRIM AND HEADLINING20.378. If wagon, install front window and quarter win-
dows. It other than wagon, install front and rear
windows.9. Install coat hooks, assist straps, interior lamp, sun
visors, and rear view mirror.
10. Install parcel shelf and plastic retainers (sedans
only).
11. Install rear seat back into position and bend over
tabs holding lower portion of seat back (sedans only).
12. In trunk area instail cardboard against rear seat,
cross brace, and bend over tabs (sedans only).
13. Install rear seat cushion (sedans only).
14. Connect battery.REMOVAL AND INSTALLATION OF REAR SIDE
PANEL TRIM PAD
1, Unscrew shield on lock pillar. See Figure 2G- 11.
2. Pull off sealing strip on lock pillar and rear quarter
window. See Figure 2G- 12.
3. Remove ash tray.
4. Remove rear seat and push retaining button out of
trim pad. See Figure
2G-13.5. Pull out trim pad towards the front.
6. Prior to installation, press together sealing strip
ends to obtain a tight seat.