lock OPEL GT-R 1973 Service Manual

AUTOMATIC TRANSMISSION X-137F. OPEL AUTOMATIC TRANSMISSION LINKAGE ADJUSTMENTP
1. REMOVE LOCK CLIP
-‘\R
l2. PLACE SELECTOR LEVER IN
“r’ 0~ “1” POSITION
23. PLACE TRANSMISSION SHIFT LEVER IN “L” OR “1” POSITION
4. ADJUST CONTROL ROD (ALLOWING IT TO FIT OVER
PIN IN LOWER SELECTOR LEVER FREELY)
5. INSTALL LOCK CLIP
--_--_-SELECTORi--_-~-- GATE
\
\---
-x---i -__‘LACE SHIFT------
LEVER IN
“L” OR “I”
-.-
\/\SHIFT LEVER
L--________--7C-222Figure 7C-233 Adjusting Selector
Level

8A-2 1973 OPEL SERVICE MANUAL
HOOD, FENDERS, AND GRILLE
CONTENTS
Subject
DESCRIPTION AND OPERATION:
GTHeadlampOperation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DIAGNOSIS: (Not Applicable)
MAINTENANCE AND ADJUSTMENTS
GTHeadlampMechanism
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MAJOR REPAIR:
Removal and Installation
Hood (1900
- Manta). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fender(1900-Manta). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Headlamp Covering (1900
- Manta). . . . . . . . . . . . . . . . . . . . . . . .Headlamp Assembly
(GT). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Headlamp
CableAssembly(GT). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Grille
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SPECIFICATIONS: (Not Applicable)
DESCRIPTION AND OPERATION
DESCRIPTION AND OPERATION OF GT
HEADLAMP MECHANISMThe concealed headlamps are moved mechanically.
Pushing actuating lever on left side of console opens
headlamps, pulling lever closes headlamps. Two
meshing gear segments convert the movement of the
lever to a rotation of 180 degrees. The pivots of the
headlamps lie below the centerline so that with head-
lamps in closed position the headlamp housing is
flush with front sheet metal.
A white indicator lamp in the instrument panel lights
if the headlamps are not completely opened and
locked. The switches of the headlamp electrical sys-
tem are located behind the left headlamp operating
mechanism.
MAINTENANCE AND ADJUSTMENTS
ADJUSTMENT OF HEADLAMP MECHANISMBoth headlamp assemblies must operate in unison in
order to lock in either the open or closed position.
Page No.
8A-2
8A-2
8A-3
8A-3
8A-4
8A-4
8A-6
8A-61. Adjust headlamps to be parallel in any position by
changing length of right headlamp operating rod.
For adjustment loosen clamp bolt (A). See Figure
8A-1.Figure
8A-l Headlamp Operation Adjustments

HOOD, FENDERS, AND GRILLE8A- 3
2. Adjust headlamps to lock or unlock simultane-
ously by adjusting lock nut (B). See Figure EA-1.3. Adjust headlamp assembly in opening as follows:
a. To align front of assembly vertically or horizon-
tally, loosen bolts indicated (A) in Figure 8A- 2.
b. To align front of assembly longitudinally, loosen
lock nut (B) in Figure 8A-2 and bolts marked (B) in
Figure
8A-3.c. To align rear of assembly vertically loosen bolts
indicated (A) in Figure
8A-3.MAJOR
REPAIR
REMOVAL AND INSTALLATION OF HOOD1. With a pencil, mark hinge positions on engine
hood. See Figure
SA-4.Figure EA.2 Headlamp Assembly Front Adjustment
LocationFigure
CIA-3 Headlamp Assembly Rear AdjustmentLocationFigure
CIA-4 Marking Hinge Position
2. Unscrew engine hood bolts from hinges. Hood
must be aligned so that the distances to the
adjacent surfaces are almost equal all around.
REMOVAL AND INSTALLATION OF FENDER
(OPEL 1900. MANTA)
1. Remove and install front bumper.
2. Remove and install radiator grille.
3. Remove and install headlamp covering.
4. Remove and install side panel trim pad.
5. Remove and install hood catch.
6. Remove and install rubber bumper (hood rest).
7. If required, remove and install direction signal
lamp.
8, Unscrew attaching bolts at fender circumference
and remove fender. See Figure
8A-5.

HOOD, FENDERS, AND GRILLEBA- 5
2. Remove headlamp assembly and remove multiple
plug from wire set.
3. Disconnect Bowden control wire(B). Loosen link-
age at the clamp screw (A) and disconnect linkage in
direction of arrows. See Figure SA-9.Figure EA.9 Disconnecting Linkage
4. Mark support plate at its circumference and
remove it. The marking facilitates the adjustment on
reinstallation. See Figure
SA-2.5. Mark swivel plate at its circumference and remove
it. See Figure
8A-3.Figure EA.10 Removing Headlamp Assembly6. To avoid damage cover headlamp upper and lower
edges with tape.
Turn headlamp 90 degrees and carefully remove
headlamp housing in direction of arrow. See Figure
8A-10.7. Through access hole on fender underside, remove
the two attaching screws and the screw at the upper
deflector panel. See Figure
8A-11.Figure EA.1 1 Locking Mechanism Attaching Screws
8. Prior to removing, mark the individual single
plugs (left headlamp only) and remove lock assem-
bly. See Figure
8A-12.Figure EA.1 2 Headlamp and Headlamp Indicator
Switches

8A-61973 OPEL SERVICE MANUAL
9. On installation make sure that the gaps between
headlamp housing in closed position and headlamp
opening is equal all round and housing is flush in its
height with the body.
REMOVAL AND INSTALLATION OF HEADLAMP
CABLE ASSEMBLY
Removal1. Remove cotter pin. See Figure
EA-13 “CL”2. Remove trunion block and nut. See Figure SA-13
“D.”
3. Remove outer adjusting nut and pull cable
through bearing. See Figure 8A-13 “B.”
4. Pull cable through front chassis support.
5. Hoist car.
6. Remove wire clip and unsnap ball seat at control
lever. See Figure 8A-14 “A.”
7. Remove ball-socket and lock nut. See Figure SA-
14
“B.”8. Remove rear adjusting nut. See Figure 8A-14
“CL”9. Remove cable from retainers.
Figure SA-13 Removing Headlamp Trunion Block
Installation10. Thread cable through bearing and clip retainers.Figure 8A-14 Removing Ball Seat at Control Lever
11. Install adjusting lock nut approximately
l/2” on
thread. See Figure 8A-13 “B.’
12. Install lock nut and ball stud on end of cable. See
Figure 8A-14 “B.”
13. Connect ball stud to control lever with clip. See
Figure 8A-14 “A.”
14. Adjust lock nut under vehicle for maximum cable
length. See Figure 8A-14
“CL”15. Thread cable through proper openings in body
and install adjusting lock nut, trunion lock nut, trun-
ion, and lock clip.
16. Adjust cable length for proper headlight operat-
ion.
REMOVAL AND INSTALLATION OF RADIATOR
GRILLE
(GT)
RemovalRemove screws securing grille screen to opening.
InstallationInstall grille screen to opening and secure with
screws.
REMOVAL AND INSTALLATION OF
RADIATOR GRILLE EXTENSIONS
(GTI
Removal
1. Remove hex head screw and washer holding grille
extension to baffle plate.

HEATER SYSTEM - GT9A- 5
MAJOR REPAIR
REMOVAL AND INSTALLATION INSTRUMENT
PANEL FRESH AIR OUTLET
Removal
1. Remove instrument panel cover assembly. Refer
to Group 1.
2. Snap grille out of outlet.
3. Remove knob from lever and remove outlet.
Installation
1. Install outlet and knob onto lever.
2. Snap grille into outlet.
3.
Install instrument panel cover assembly. Refer to
Group 1.
REMOVAL AND INSTALLATION KICK PANEL
FRESH AIR OUTLET
Removal
Using a screwdriver, carefully pry out outlet.
Installation
Install outlet.
REMOVAL AND INSTALLATION BLOWER
SWITCH
Removal
i. Remove instrument panel assembly. Refer to
Group 1.
2. Unscrew switch assembly from panel.
Installation
1. Screw switch assembly to instrument panel.
2. Install instrument panel assembly. Refer to Group
1.
REMOVAL AND INSTALLATION HEATER
Ramova!
1. Remove lower radiator hose, drain, and collect
coolant. 2. Detach coolant feed (A) and return (B) hoses, in
engine compartment from heater core. See Figure
9A-5.
Figure 9A-5 Heater Hose Connections
3. In engine compartment remove hood lock control
cable retaining clip and cable from lock bar. See Figure
9A-6.
Figure 9A-6 Hood Release Control Cable
4. Remove console shift cover between seats using
the following instructions:
a. Remove ash tray and remove two screws under it.

9A-8 1973 OPEL SERVICE MANUAL
Installation
1. Install heater blower and case assembly, securing
with one (1) bolt at the top and two (2) nuts from the
bottom. See Figure
9A-15.
2. Install instrument panel padding and connect
heater and defroster duct hoses, making sure hoses
are properly positioned and connected. See Figure
9A-16.
Figure 9A-16 Heater and Defroster Duct Hoses
3. Install support bracket (B) and heater control (A).
See Figure
9A-12.
4. Carefully push cluster back into instrument panel
housing, making sure electrical wires, etc., are not
pinched.
5. Install six (6) cluster retaining screws. See Figure
9A-10.
6. Install directional signal flasher. See Figure
9A- 9.
7. Attach speedometer cable.
8. Attach two (2) multiple wire plug connectors in
steering column harness.
9. Install steering column. Refer to Group 90.
10. Install instrument panel cover and attach
through openings (points A and B). See Figures
9A-7
and 9A-8.
11. Install right and left opening covers. 12. Install the console shift
cover
between the seats
using the following instructions:
a. Install console cover over shift lever and rubber
shift lever boot.
b. Install cover by pushing down until cover snaps into the four (4) push button type studs.
c. Install two (2) screws under ash tray opening and
install ash tray. 13.
In engine compartment, install hood lock control
cable to lock bar using retaining clip. See Figure
9A-
6.
14. Attach return hoses (B) and coolant feed hoses
(A) to heater core. See Figure
9A-5.
15. Attach lower radiator hose and add collected
coolant.
16. Check for proper operation and leaks in system.
REMOVAL AND INSTALLATION DEFROSTER
OUTLET
Removal
1. Remove instrument panel cover assembly. Refer
to Group 1.
2. Remove screws securing outlet to cover assembly.
Installation1. Install defroster outlet, securing with screws.
2. Install instrument panel cover assembly. Refer to
Group 1.
Figure 9A-17 Heater Valve

9A-i2 1973 OPEL SERVICE MANUAL
Check that air doors and water temperature control
valve are operating properly.
Check for plugged heater core-backflush heater core
as necessary.TROUBLEInadequate defrosting action.
CAUSE AND CORRECTIONExamine heater-defroster door for proper operation.
Adjust bowden cable so that door is fully closed in
FULL DEFROST position.
Check that air hoses connecting to defroster outlets
are secure.
Check for air leaks around edges of heater air dis-
tributor housing. Seal leaks, as necessary, with bodysea@. Check for body air leaks and seal, as neces-
sary, with body sealer.
TROUBLEBlower inoperative.
CAUSE AND CORRECTIONCheck blower fuse. Replace, if necessary, fuse posi-
tion 4
- amperage 15.
Check wiring for open circuit. Correct, as required.
Inspect for defective component, (i.e., blower switch
or blower motor)
- replace or repair as necessary.
MAINTENANCE AND ADJUSTMENTS
CONTROL CABLE ADJUSTMENTAdjustment of control cables is accomplished by po-
sitioning of the jacket or sheath of the control cable,
as held by the clamps on the control assembly and
heater case or by loosening screws and slidingbowden wire to obtain desired door or water valve
position.
MAJOR REPAIR
REMOVING AND INSTALLING HEATER HOUSING
Removal1. Unscrew hood lock together with ground wire(ground wire only on vehicles with radio interference
suppression). See Figure 9A-33.
Figure 9A-33 Hood Lock Attachments
2. Unscrew heater housing cover.
3. Pull hose of windshield washer system off jet and
take jet out of housing cover.
4. Unscrew bowden control wire from heater valve.
5. Unscrew heater housing from dash panel and pull
it off carefully. See Figure 9A-34.
Figure 9A-34 Heater Housing Attachments
6. Remove water hoses from heater core and pull
heater core out of heater housing. See Figure
9A-35.

Figure SA-35 Heater Core
Installation
1. Apply sealing compound between heater housing
and dash panel.
2. Install heater core into heater housing and attach
water hoses. See Figure 9A-35.
3. Instaii heater housing to dash panel. S,ee Figure9A-44.
4. Install bowden control wire to heater valve.
5. Install windshield washer jet into housing cover
and attach hose.
6. Install heater housing cover, and seal with a seal-
ing compound.
7. Install hood lock, together with
grc’und wire
(ground wire only on vehicles with radio interference
suppression).
REMOVING AND INSTALLING
DEFROSTE+lOUTLETS
Removal
1. Pull out heater switch lever. See Figure 9A- 36.
2. Remove instrument cover.
3. Unscrew bowden control wires from heater valve
and air distributor housing and pull out heater con-
trols.
4. Remove glove compartment.
HEiATER SYSTEM - OPEL 1900 - MANTA9A. 13Figure SA-36 Removing Heater Switch Lever
5. Remove radio.
6. On right side, viewed in driving direction, remove
air distributor housing attaching screws. See Figure9A-37
Figure SA-37 Air Distributor Housing Attaching
SCWWS7. On left side, viewed in driving direction, remove
upper attaching screw through opening for heater
control housing and lower attaching screw below
instrument panel. See Figure 9A-38.
8. Pull air distributor housing off dash panel

98-20 1973 OPEL SERVICE MANUAL
If we were to put a thermometer in the cold drain
water, we would see the temperature gradually creep
upwards. That is to be expected because heat is flow-
ing into the cold water making it warmer. Before
long the water would be as warm as the stored foods.
Then the water could no longer attract heat because
heat will not flow from one warm object to another
equally warm object. Since we no longer can draw
heat out of the foods we no longer are cooling them.
Now, let’s see what happens when we put ice instead
of cold water into the ice-box. This time, we’ll set the
thermometer on top of the ice (Fig. 9B-5). When wefirst look at the thermometer, it reads 32 degrees. A
couple of hours later, we open the ice compartment
door. The ice block is smaller because some of the ice
has already melted away
- but the thermometer still
reads 32 degrees. Again, still later, even more of the
ice has melted, yet the termometer continues to read
32 degrees. So long as any ice remains, no matter
how much of it has melted away, the temperature of
the ice stays right at 32 degrees.
All this time the ice has been soaking up heat, yet it
never gets any warmer no matter how much heat it
draws from the stored food. On the other hand, the
cold drain water got progressively warmer as it
soaked up heat. Why is it the addition of heat will
make water warmer yet won’t raise the temperature
of ice above the 32 degrees mark? If we till one
drinking glass with ice and another with cold water,
and put both glasses in the same room where they
could absorb equal amounts of heat from the room
air, we will find it takes much, much longer for the
ice to melt and reach room temperature than it did
for the water in the other glass to reach the same
temperature. Obviously, most of the heat was being
used to melt the ice. But it was the heat that appar-
ently disappeared or went into hiding because if
couldn’t be located with a thermometer. To best de-
scribe this disappearing heat, scientists turned to
Latin for the right word. They chose the word “la-
tent” which means hidden.
Latent Heat
So latent heat is nothing more nor less than hidden
heat which can’t be found with a thermometer.
What happens to the latent heat? Where does it
disappear to? At first it was thought it was in the
water that melted from the ice. But that wasn’t ex-
actly the right answer because, upon checking water
temperature as it melts from ice, it will be found that
it is only a shade warmer than the ice itself. It is not
nearly warm enough to account for all the heat the
ice had absorbed. The only possible answer is that
the latent heat had been used up to change the ice
from a solid into a liquid.
Many substances can be either a solid, or a liquid, ora gas. It just depends on the temperature whether
water for example was a liquid, or a solid (ice), or gas
(steam) (Fig.
9B-6).Figure 99-6 Temperature Determines State of Water
If we put some water in a tea-kettle, set it over a tire
and watch the thermometer as the water gets hotter
and hotter, the mercury will keep rising until the
water starts to boil. Then the mercury seems to stick
at the 212 degrees mark. If we put more wood on the
fire, despite all the increased heat, the mercury will
not budge above the 212 degree mark (Fig.
9B-7).Figure 98.7 Boiling Water Never Exceeds 2 12
DegreesEven though many housewives won’t believe it, no
matter how large or hot you make the flame, you
can’t make water hotter than 2 12 degrees. As a liquid
changes into a gas, it absorbs abnormally great
amounts of heat without getting any hotter. Here is
another instance where heat disappears.
Now we have two different kinds of latent heat,
which are quite alike. To keep their identities sepa-
rate, the first one is called latent heat of fusion. Since
fusion means the same as melting, it is a good de-
scriptive name. The other kind is called latent heat
of vaporization because‘ that means the same as
evaporation.
It may seem as though we have drifted into a story