1973 OPEL GT-R Service Manual

2B- 61973 OPEL SERVICE MANUAL
OPEL 1900, MANTA AND GT FRAME ANDBODY
MOUNTINGS
CONTENTS
Subject
DESCRIPTION AND OPERATION: (Not Applicable)
DIAGNOSIS: (Not Applicable)
MAINTENANCE AND ADJUSTMENTS: (Not
Applicable)
MAJOR REPAIR: (Not Applicable)
SPECIFICATIONS:
FrameandBodyMountingSpecifications. . . . . . . . . . . . . . . .Page No.28-6LOWER
I.
1.Ii
NOTE: TOLERANCES
NOTTOEXCEED*1,16I IDATUM LINEZB2
Figure
ZB-2 GT Frame Details

FRAME AND BODY MOUNTINGS28. 7A
B
C
DE
F
G
H
I
.I
K
L
M
N0
P
Q
R
S112”25-l/4”
22-314”
SO-5/16”
50-5/16”49-l/8”
59-l IS”
35-314”32”36-l/8”
28-19132”
39-118”
15-118”
12-2132”lo-3/4”
6II6”
.l l-5/16”16-l/4”GT FRAME MEASUREMENTS
From centerline of lower ball joint stud to centerline of front lower arm
bushing.
Outside of left frame horn to outside of right frame horn.
Centerline of front crossmember right attaching bolt holes to centerline of front
crossmember left attaching bolt holes.
From centerline of hole in radiator support to right front frame horn
reinforcement to centerline of left front underbody drain hole.
From centerline of hole in radiator support to left front frame horn
reinforcement to centerline of right front underbody drain hole.
From rear outside edge of right front frame rail to rear outside edge of left
front frame rail.
From centerline of lower ball joint stud to centerline of second side drain hole.
Centerline of right lower control arm to centerline of left lower control arm.
Centerline of second side underbody drain hole to centerline of rear spring seat.
Centerline of right spring seat to centerline of left spring seat.
Centerline of spring seat to bumper bracket bolt hole on outside of lower tail
panel.
Outside edge of right rear frame rail to outside edge of left rear frame rail.
Centerline of radiator support bolt hole to centerline of front crossmember front
attaching bolt holes.
Lower edge of front frame horn to datum line.
Frame rail mating surface for front crossmember to datum line.
Front portion of underbody to datum line.
Rear portion of underbody to datum line.
Center of spring seal to datum line.
Centerline of rear bumper bracket to lower tail panel bolt to datum line.

28. B1973 OPEL SERVICE MANUAL
A
B
C
D
E
F
G
H
I
J
K-L
M
N
1 O-9/ 16”
14-9116”
71.7116”90-l/2”
S-3/16”
1 l-S/V
21-9/l 6”
30”
24-314”30-9/l 6”38-l/2”36-3/V
17-5116”Figure
28-3 Opel 1900 Manta Frame Details
1900
- MANTA 1900 - MANTA FRAME MEASUREMENTS
Mating surface of frame rail to horizontal line from center of front crossmember
to frame support bolt hole.
Centerline of front crossmember attaching bolt hole to centerline of front
crossmember to frame support bolt hole.
Centerline of front crossmember attaching bolt hole to center of lower control
arm to frame bolt hole.
Centerline of front crossmember attaching bolt hole to center of rear spring seat.
Rear spring seat to datum line.
Center of spring seat to center of track rod to body attaching bolt hole.
Centerline of front crossmember right attaching bolt hole to centerline of front
crossmember left attaching bolt hole.
Centerline of right front frame bolt hole to centerline of left front crossmember
to frame support bolt hole (inboard side of frame rail).
Distance between frame rails at front crossmember to frame support bolt holes.
Centerline to centerline of torque tube support to frame bolt holes.
Center qf spring seat to center of torque tube support to frame bolt hole
(inboard side of frame).
Centerline of right spring seat to centerline of left spring seat.
Centerline of car to centerline of track rod to body attaching bolt.

WINDOWS AND WINDOW MOLDINGS2c-9WINDOWS AND WINDOW MOLDINGS
CONTENTS
Subject
DESCRIPTION AND OPERATION: (Not Applicable)
DIAGNOSIS: (Not Applicable)
MAINTENANCE AND ADJUSTMENTS: (Not
Applicable)
MAJOR REPAIR:
Removal and Installation
Windshield
RevealMolding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Windshield
andBackWindow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DoorWindow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Rear Quarter Window Molding
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Rear Quarter Window
-1900 -Manta. . . . . . . . . . . . . . . . . .RearQuarterWindow
-GT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RearQuarterWindowLock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SPECIFICATIONS: (Not Applicable)Page No.
2c- 9
2c-10
2c-11
2c-11
2c-12
2c-12
2c-12
MAJOR REPAIR
REMOVAL AND INSTALLATION OF WINDSHIELD3. With Tools J-2 1828 and J-2 1549, insert new reveal
REVEAL MOLDINGmolding and install escutcheon.
1. Remove reveal molding escutcheon. Starting at
one end, pull molding out of rubber channel. See
Figure
2C-2.Figure ZC-2 Removing Reveal Molding
Figure ZC-3 Pushing Windshield Out 2. Prior to installation, place molding in water and
heat up to approximately 113
- 122 degrees F.

2c-101973 OPEL SERVICE MANUAL
REMOVAL AND INSTALLATION OF WINDSHIELD
OR BACK WINDOW-WINDSHIELD SHOWN
1. Flap back windshield wiper arms,
2. Beginning at one end, pull molding out of rubber
channel.
3. Beginning at one corner, push out windshield
together with rubber channel. See Figure 2C-3.4. Place new windshield on glass holding fixture and
tit new rubber channel. See Figure
2C-4.5. Insert a thick string into large sealing lip of rubber
channel so that both ends are crossed at bottom cen-
ter of windshield. See Figure
2C-5.6. With a sealer gun, coat outside of pinchweld flange
with sealing compound. See Figure
2C-6./’
Figure
2C-4 Fitting Rubber Channel on Windshield
Figure
2C-5 String Inserted Into Rubber ChannelFigure 2C-6 Applying Sealer on Pinchweld Flange
7. Place windshield in body opening and, with in-
serted string, pull rubber channel lip over pinchweld
flange, always tapping windshield from outside with
a striking pad. See Figure
2C-7.Figure
2C-7 Pulling Rubber Channel Lip Over
Pinchweld Flange

WINDOWS AND WINDOW MOLDINGS2c-118. With a sealer gun, apply window sealing com-
pound between outside of windshield and rubber
channel. See Figure
2C-8.Figure 2C-8 Applying Sealing Compound Outside of
Windshield
REMOVAL AND INSTALLATION OF FRONT DOOR
SASH WINDOW
1. Remove and install door trim pad.
2. Remove and install lock knob.
Figure 2C-9 Removing’Glass3. Remove and install door inside handle.
4. Remove and install door belt reveal molding.
5. Scribe position of window lifter guide rail screws.
6. For unscrewing window lifter guide rail, block
sash window or support it with the hand.:;CJ.;t window and take it out of door. See Figure
REMOVAL AND INSTALLATION OF ORNAMENTAL
BAR AT THE REAR QUARTER WINDOW
Removal1. Unscrew chromed molding and remove rear quar-
ter window. See Figure
2C-10.Figure
2C-10 Removing Chromed Molding
2. In the area of the rear quarter window, pull wea-
therstrip out of metal profile and remove sealing
strip.
3. Unscrew metal profile and remove ornamental
bar.
Installation1. Install ornamental bar and fasten metal profile.
2. Install sealing strip and weatherstrip into metal
profile.

2C- 121973 OPEL SERVICE MANUAL
3. Install quarter window and fasten chromed mold-
ing. See Figure 2C-10.REMOVAL AND INSTALLATION OF REAR
QUARTER WINDOW OPEL 1900. MANTA
1. Unscrew rear quarter window
Iqck. See Figure2c-11.
Figure
2C-1 1 Quarter Window Lock Attaching Screws
2. Unscrew window hinge from lock pillar while
holding window. See Figure
2C-12.3. On installation, seal hinges with a plastic com-
pound.
Figure 2C-12
Cluarter Window Hinge AttachingSCW@S4. Carefully push rail off window. On rear quarter
window lock, drill off pin and unscrew retainer from
window. See Figure
2C-13.Figure 2C-13 Drilling Off Quarter Window Lock Pin
REMOVAL AND INSTALLATION OF HINGED
REAR QUARTER WINDOW
- GT
Removal1. Remove three screws securing lock to rear quarter
pillar. See Figure
2C-14. Swing window outward and
lift off rear quarter window. Care should betaken
that window does not fall off pivots when swung
outward.
Figure 2C-14 Rear Quarter Pillar Lock
- GT
2. Remove frame from glass
Installation1. Install frame to glass.
2. Install lock to rear quarter pillar, securing with
three (3) screws.

DOORS
CONTENTS
Subject
DESCRIPTION AND OPERATION: (Not Applicable)
DIAGNOSIS: (Not Applicable)
MAINTENANCE AND ADJUSTMENTS: (Not
Applicable)
MAJOR REPAIR:
Front Door - Removal and Installation
DoorLockStriker..........................................................
WindowRegulator
Handle..........................................
Trim
Pad............................................................................
DoorHandle.Inside......................................................
RevealMolding................................................................
WindowLifter..................................................................
DoorLockCylinder........................................................
Weatherstrip....................................................................
Door....................................................................................
Rear Door
- Removal and Installation
SashWindow..................................................................
Window Regulator........................................................
TailGate............................................................................
Door....................................................................................
SPECIFICATIONS:Page No.
2D-13
2D-13
2D-13
2D-15
2D-1520-l
5
2D-17
2D-10
20-18
2D-19
2D-20
2D-21
2D-21
MAJOR REPAIRREMOVAL AND INSTALLATION OF DOOR LOCK
STRIKER1. Mark position of old striker on lock pillar and
unscrew striker, using Tool J-23659. See Figure
2D-2.2. Place new striker in installation position and tem-
porarily tighten striker, observing marking on lock
pillar. Close door and check whether this can be
done without exerting any force. If this is not the
case, adjust striker accordingly.
3. Tighten attaching screws, using Tool J-23659, and
check for proper operation.REMOVAL AND INSTALLATION OF WINDOW
REGULATOR HANDLE1. Insert Tool J-7797 between handle and nylon disc.
See Figure
2D-3.2. With the two fork-shaped ends of the tool, slide
lock spring outwards. See Figure
2D-4.3. Place lock spring of new handle in installation
position and install it onto window regulator shaft.
4. With the window in closed position, the window
regulator handle should point upwards towards the
front at an angle of approximately 45 degrees.
REMOVAL AND INSTALLATION OF FRONT
DOORTRIM PAD
1. Remove window regulator handle.