98.96 1973 OPEL SERVICE MANUALr DARK BLUE
LIGHT BLUE STRIPE
CUTOUT111111DARK GREEN DARK GREEN
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BATTERYl LJ
\flu- +tL-2+- -7- -RESISTOR
A
EXlSilNG‘IWIRE
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I
IFUSE BLOCK*,*,- I./SWITCH
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ti‘WIREfIfI
1- IAAI
i$+.-lAC~,‘XESW WIRE
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TTEVAPO.RATOREVAPO.RATOR
BLACK WITH RED STRIPE BLACK WITH RED
Sl96-143
Figure 9B-188 Wiring Schematic‘RIPE96-143
Figure 9B-188 Wiring Schematic
SPECIFICATIONS
Blower Motor Type
......................................................................................................12 VDC
Blower Fan Type
..................................................................................................Squirrel Cage
5. If the low side pressure was less than the pre-
scribed pressure at the end of each cooling cycle, turnthe adjusting screw a partial turn clockwise. See Fig-ure 9B-192.AIR CONDITIONER SYSTEM
- GT9B- 99
CONNECTOR
Figure 98.192 Adjusting Thermostatic Switch6. If the pressure was more than the prescribed
value, tuin the adjusting screw counter-clockwise.7. Reinstall switch end plate and install switch in
face plate. Install face plate on evaporator assembly
assuring
,that the air sensing capillary has been re-
placed properly.
Figure 98-l 93 Vacuum Switch8. Check system performance. Iffurther adjustment
is needed, repeat steps 3 thru 7 until the correct
pressure is reached.
REMOVAL AND INSTALLATION OF BLOWER
SWITCHDo not attempt to run a performance test with the
duct assembly and switch removed from the
evaporator assembly
- inaccurate readings will re-
sult. Always replace the switch and duct assemblies
before c+ecking the system performance.
Removal
MAJOFi REPAIR
1. Remove the negative cable from the battery2. Remove the retaining screws from the duct as-
sembly. See Figure
9B-190.3. Remove 2 blower switch rejaining screws and
remove blower switch.
REMOVAL AND INSTALLATION OF VACUUM
SWITCH,
Installation
Ramoval~1. Remove right trim pad below instrument panel.
2. Rembve two (2) screws and unplug the vacuum
hose and electrical connector. See Figure
9B-193.1. Install the blower switch and
secure with two (2)
retaining screws.
2. Install the duct assembly retaining screws.
3. Install the negative battery cable.
Installation1. Install two (2) screws and plug in electrical con-
nector and connect the delay restrictor and checkvalve
hose assembly.
I
REMOVAL AND INSTALLATIDN:OF
TEMPERATURE CONTROL SWITCH
Removal2. Install right trim pad.I. Remove the negative battery cable.
gB-100 1973 OPEL SERVICE MANUAL
2. Remove the retaining screws from the duct as-
sembly. See Figure 9B-190.3. Lift up duct assembly and note the position of the
air sensing capillary so that it can be reinstalled in
the same location as when removed.
4. Remove the temperature control switch retaining
screws and remove switch.
Installation
1. Install the temperature control switch and secure
with the retainer screws.
2. Position the air sensing capillary in the exact
location as was noted when removing.
3. Install the duct assembly retaining screws.
4. Install the negative battery cable.
REMOVAL AND INSTALLATION OF RESISTOR
ASSEMBLY
Removal1. Remove the negative battery cable from the bat-
tery.2. Remove the luggage tray attaching screws and
lift out tray. See Figure 9B-194.
Figure 98-194 Luggage Tray3. Remove all evaporator cover attaching screws
and remove cover. See Figure
9B’-195.Figure 98.195 Evaporator Cover Assembly and
Attaching Screws
4. Remove the electrical plug connector from the
resistor assembly.
5. Remove 2 resistor attaching screws and remove
resistor assembly. See Figure 9B-197.
/98-147Figure 9B-196 Resistor and Blower Motor
Connections
Figure 98-197 Electrical Connections
Installation
1. In611 the resistor assembly and two (2) attach-
ing screws. See Figure
9B-198.
Figure ?B-198 Resistor Assembly Attaching Screws
2. Install the electrical plug connector.
3.
In&l the evaporator cover and attaching
screws. See Figure
9B-195.
4. Install the luggage tray and attaching screws. See
Figure
?B-194.
5. Install the negative battery cable
AIR CONDITIONER SYSTEM. GT9t3.101
REMOVAL AND INSTALLATION OF BLOWER
MOTOR ASSEMBLY
I. Disconnect the negative battery cable from the
battery.
Figure 98.200 Luggage Tray
Figure
98.201 Evaporator Cover Assembly and
Attaching Screws
98-104 1973 OPEL SERVICE MANUAL
the el&trical connector side of the motor to the right
side of the bracket.
2. Assemble the fan housing case halves and attach
the cover plate.
3. Install the resistor assembly.
4. Install the evaporator assembly into the car and
install mounting bracket. See Figure
9B-209.5. Untape the refrigerant lines and the inlet and
outlet pipes from the evaporator and install using
new o-rings on line fittings.
6. From under the car, install 4 nuts securing
evaporator mounting bracket to floor. See Figures9B- 205 and
9B-206.7. Evacuate system. Refer to EVACUATING SYS-
TEM in REFRIGERANT COMPONENTS Sec-
tion.
SPECIFICATIONS8. While system is being evacuated:
9. Connect 2 drain hoses underneath the evaporator
housing.
10. Plug in the resistor assembly electrical connector
plug and connect the blower motor connection and
install ground wire and 2 mounting bracket to case
screws using the rearward holes.
S’ee Figure 9B-209.11. Install the evaporator cover and all cover screws.
See Figure 9B-202.
12. Install luggage tray and attaching screws. See
Figure
9B-202.13. Connect the negative battery cable.
14. Charge system. Refer to CHARGING SYSTEM
in Refrigerant Components Section.
RADIO - GT9c. 107mer screw and rotate screw until maximum volume
is achieved.
MAJOR REPAIR
REMOVING AND INSTALLING RADIORemoval
1.
Disc&ect battery.
2. Remove access trim plug from right side of con-
sole. See Figure
9C-1.Figure
9C-3 Location of Access Trim Cover3. Using a 8mm socket, remove hex head screw. See
Figure
9C-2.4. Remove access trim cover on left side of console.
See Figure
9C-3.5. Using a 4mm socket, remove
hex head screw. See
Figure
9C-4.6. Remove tear lock bolts by first,drilling a 3/16 inch
pilot hole and, using a
l/4 inch bolt extractor,
remove bolts. See Figure
9C-5.Figure
9C-5 Drilling Pilot HoleIn\, Tear Lock Bolts7. Disconnect ignition (white) and direction signal
(black) wire set plugs.
8. Support steering column assembly and remove
both hex head bolts.
9. Disconnect speedometer
cabI&10. Remove 6 instrument cluster retaining screws.
See Figure
9C-6.Figure SC-4 Location of Hex Head Screw and Flasher
UnitFigure SC-6 Removing Instrument Cluster Retaining
screws
SubjectPage Number
Subject Page Number
A
Air Conditioning Refrigerant Components .................
98.17
Opel 1900
& Manta-In Car Components .....9B-90
GT.ln Car Components..................98-97
Alignment Opel 1900
& Manta .....................3C-22
GT-Opel ..............................
3C-22
Alternator Description ...........................
lD-28
Specifications. .........................1 D-35
Overhaul K-l..........................lD-30
Removal & Installation ..................lD-30
Testing...............................lD-29
Wiring Diagrams
Manta .............................
1 J-105
Opel 1900
..........................lJ-103
GT ................................
lJ-107
AM
Radio-GT............................9C-105
AM Radio-Opel 1900 &Manta ...............
9C-109
Antenna, Installation .......................
9C-111
Antenna Trimmer .........................
9C-110
Assembly of Transmission from Major Units Manual ...............................
78-23
3 Speed Automatic .....................
7C-103
Axle,
R&r, Disassembly ....................48~11
Bolt Torque Specifications
Engine ...............................
6A-27
Transmission. Manual ....................
78-33
3 Speed Automatic .....................
7C-136
Clutch ...............................
7A-7
Body ................................
2A-4
Brakes
Brake Drum, Shoes & Linings .............5C-28
Hydraulic Wheel Cylinder ................
5C-30
Hydraulic Master Cylinder ................
5A-2
Parking Brake Cables .....................
5C-33
Standard Brakes ........................
X-22
Disc Brakes...........................5B-10
Brake Booster and Vacuum
Coritrol Valve ....5A-5
Bumpers, Front and Rear ...................
ZH-33
C
B
Balance,,Wheel and Tire....................3G-62
Ball
J&tUpper .........................3A-7
Lower ...............................
3A-7
Battery
Specifications ..........................
lA-9
Testing...............................lA-6
Charging ..............................lA-9
Trouble Diagnosis ......................lA-4
Battery Test 421.........................l A-6
Belt Tensions ............................
68.33
Blower and Air Inlet Assembly, Removal and Installation
Owl 1900&Manta.....................9A-15
GT
.: ................................9A-5
Body Name Plate ............................
OA-1
Style’Numbers ......................... OA-2
Windows and Weatherstrips ...............
ZC-9
Doors ................................
ZD-13
Interior Trim and Headlining ..............
26-33
Seatsi................................26-33
Roof&d Sunroof-Opel 1900
& Manta ......2F.24 Camshaft,
1.9L
Engine .....................6A-25
Car Model Identification .......
.,............OA-1
Carburetor..............................6E-44
Trouble Diagnosis ......................
6E-49
Description ...........................
6E-44
Overhaul .............................
6E-53
Adjust ...............................
6E-50
Removal
& Installation ......,............6E-52
Specifications ..........................
6E-58
Charging
System
Description ..............
:............ 1 D-28
Specifications. ............
.,............lD-35
Testing..................:............lD-29
Wiring Diagrams
Manta .............................
lJ-105
Opel 1900 ..........................
lJ.103
GT ................................
lJ-107
Chart Lubrication ........................ OC-5
Chassis Springs, Front. ........
!............3A-15
Clutch, Second-Automatic Transmission .......
7C-103
Clutch Adjustment .........................
7A-4
Control Arm Front Upper ...................
:............3A-10
Lower ...............................
3A-11
Converter Checking Procedure ................
7C-125
Coolant Flow ............................
68-32
4 Speed Manual Transmission ...
!,...........7B-12
Cranking System. See Starting
SyStem
Crankshaft..............................6A-16
Cylinder Head ...............
:............6A-12
D
Description
3.Speed Automatic.....................7C-37