engine CHEVROLET CAMARO 1967 1.G Chassis Workshop Manual
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Page 548 of 659
ELECTRICAL-BODY
AND
CHASSIS
12-36
CAMARO INSTRUMENTS AND GAUGES
INDEX
Page
General Description
12-36
Service Operations
12-36
Instrument Cluster
. . . 12-36
Instrument Lamps
12-36
Printed Circuit
12-36
Fuel Gauge
12-37
Tachometer
. . 12-37
Seat Separator Instrument Console
12-37
Page
Fuel Gauge
12-37
Ammeter
12-37
Temperature Gauge
12-37
Oil Pressure Gauge
. 12-37
Fuel Warning Unit
12-37
Clock.
... 12-37
Oil Pressure Indicator
12-37
Generator Indicator
12-38
Temperature Indicator
12-38
GENERAL DESCRIPTION
The standard Camaro instrument cluster assembly con-
sists
of two
circular units which house
the
speedometer
and fuel gauge assemblies.
The oil
pressure, left-hand
directional
and
brake warning indicators
are
located
in
the face
of the
speedometer bezel while generator,
tem-
perature
and
right-hand directional indicators are grouped
with
the
fuel gauge unit.
The
high beam indicator
is
located between
the
cluster bezels.
A special instrumentation package
is
available with
the
eight-cylinder engine
and
center floor console combina-
tion.
The
special cluster includes:
a
clock; coolant
temperature,
oil
pressure, fuel
and
ammeter gauges,
mounted forward
on the
seat separator console;
a ta-
chometer
in the
right circular housing
of the
dash
in-
strument cluster; and
a low
fuel level indicator replacing
the
oil
pressure indicator lamp
in the
instrument cluster.
The instruments
and
gauges,
may be
serviced only
after
the
instrument cluster
is
removed from
the
vehicle.
Indicator
and
cluster lamps except
for the
high beam
indicator
may be
replaced without removing
the
cluster
assembly. Partial cluster removal
is
necessary when
replacing
the
high beam indicator due
to its
proximity
to
the upper brace
rod
anchor plate.
The
bulbs
are in-
stalled
in
plastic sockets which lock into
the
cluster
housing and make contact with
the
printed circuit.
A
low
level fuel warning system
is a
special feature
available with
the
floor console gauge pack. This
sys-
tem includes
an
indicator lamp
in the
dash cluster and
a
semi-conductor unit senses
the
change
in
electrical
re-
sistance
of the
fuel system circuitry
as
variations
in
fuel level occur.
The
sensing device
is
replaced
as a
unit
if
found defective.
The brake warning light serves
a
dual purpose.
It
functions
as an
indicator when
the
parking brake
is ap-
plied
and
also
if
there
is a
malfunction (loss
of
hydraulic
pressure)
in the
brake system. Switches which provide
the signal
to
operate
the
light
are
located
at the
parking
brake assembly
and at the
brake master cylinder
in the
hydraulic lines. Service
of the
brake pressure differ-
ential switch unit
is
covered
in
Section
5 of
this manual.
Regular maintenance
is not
required on
the
instrument
cluster
or its
components other than maintaining clean,
tight electrical connections, replacing defective parts
and keeping
the
speedometer properly lubricated.
SERVICE OPERATIONS
INSTRUMENT CLUSTER (Figs.
50
thru
53)
Removal
and
Installation
1.
Disconnect battery ground cable.
2.
Remove mast jacket lower support screws
at toe
pan.
3.
Remove mast jacket upper support bolts
and
allow
steering wheel
to
rest
on
seat cushion.
CAUTION: Both supports must
be
detached
to
prevent distortion
of
mast jacket.
4.
Remove cluster attaching screws from face
of
panel
and partially remove assembly from console opening.
5. Reaching behind cluster assembly, disconnect speed-
ometer cable, speed warning device
(if so
equipped
-
Fig.
51) and
chassis harness connector
at
rear
of
panel.
6. Remove assembly from console opening to
a
suitable
bench area
for
required service operations.
7.
To
install, reverse removal procedure.
INSTRUMENT CLUSTER LAMP REPLACEMENT
1.
Turn bulb holder counterclockwise
and
pull
out to
remove from
the
cluster housing.
2.
Pull bulb straight out
to
remove from socket.
3.
Press replacement bulb inward
to
lock
in
socket.
4.
Insert lamp assembly into housing, with lugs
on
holder entering notches
in
housing,
and
turn clock-
wise
to
lock
in
place.
PRINTED CIRCUIT REPLACEMENT
1.
Remove instrument cluster
as
previously described
in this section.
2.
Remove
all
cluster illuminating and indicator lamps
from housing.
3.
Remove fuel gauge terminal nuts
or
tachometer
re-
taining nuts securing printed circuit
to
housing.
4.
Remove four
hex
head screws retaining printed
cir-
cuit
to the
cluster housing
and
remove circuit from
housing.
5.
To
install, reverse removal procedure.
CAUTION:
The
retaining screws
are
part
of
the grounding circuit
and
must
be
installed
to
provide proper connections
for the
printed
eir-
cuit.
CHEVROLET CHASSIS SERVICE MANUAL
Page 549 of 659
ELECTRICAL-BODY AND CHASSIS 12-37
Fig.
50 - Instrument Cluster Installation — Camaro
FUEL GAUGE REPLACEMENT
1.
Remove instrument cluster assembly as previously
described.
2.
Remove cluster lamps from gauge cover plate,
ground screw and terminal nuts attaching printed
circuit to fuel gauge.
3.
Remove three screws retaining gauge assembly to
cluster housing.
4.
Carefully move printed circuit away from gauge and
remove gauge assembly from cluster housing.
5. Remove terminal nuts securing gauge to cover plate,
and detach gauge unit.
6. To install, reverse removal procedure.
TACHOMETER
NOTE:
The tachometer is a self-contained, all
transistor unit requiring very little service
other than keeping the terminal nuts clean and
tight. The unit is not serviceable and must be
replaced, if defective.
1.
Remove instrument cluster as previously described
in this section.
2.
Remove cluster lamps from rear of gauge cover and
disconnect harness wiring connections from gauge
terminals.
3.
Remove three screws retaining gauge to cluster
housing.
4.
Move printed circuit away from gauge area and re-
move gauge unit from housing.
5. Remove terminal nuts securing gauge to cover
detach unit.
6. To install, reverse removal procedure.
SEAT SEPARATOR INSTRUMENT CONSOLE
(Fig.
54)
(Fuel,
Ammeter, Temperature, Oil Pressure Gauges,
Low Fuel Warning Unit, and Clock)
1.
Disconnect battery ground cable.
2.
Remove clock shaft knob from face of cluster.
3.
Remove cover retaining screws (4) and cover from
cluster assembly.
NOTE:
Use an alien wrench to remove the two
screws located in the top of the cover below the
instrument console.
4.
Remove four screws retaining gauge mounting plate
to cluster housing.
5. Carefully disengage gauge plate from housing and
disconnect oil pipe and all electrical connections at
rear of gauges.
NOTE:
At this point, with gauge package re-
moval from housing all gauges including the low
fuel warning system may easily be serviced.
6. To install assembly, use reverse of removal
procedure.
OIL PRESSURE INDICATOR
If the light does not come on when the ignition switch
is turned on, or if the light comes on and remains on
after the engine is started, one or more of the following
conditions is indicated.
• Low oil pressure
• Defective wiring or switch
Sending Unit Replacement
1.
Disconnect wiring harness connector from sender
unit terminal (located in block above starter on L-6
engines and at left front of distributor on V-8
engines).
Fig.
51 - Speed Warning Device
CHEVROLET CHASSIS SERVICE MANUAL
Page 550 of 659
ELECTRICAL-BODY AND CHASSIS 12-38
Fig.
52 - Instrument Cluster Lighting
1
• Cluster Lamp
2.
* High Beam Indicator
3. Oil Pressure Indicator
4.
L.H. Directional Indicator
5. Generator indicator
6. R.H. Directional indicator
7. Temperature Indicator
8. Printed Circuit
9. Chassis Harness Connector
10,
Brake Warning Indicator
2.
Remove sender unit.
3.
Replace with new unit and check operation.
GENERATOR INDICATOR
1.
Ignition on, engine not running and indicator light off:
•Indicator bulb is burned out, replace bulb.
•Open circuit or loose connection in the indicator
light circuit.
2.
Indicator light stays on after engine is started:
•Ti indicator light does not go out at engine idle
speed, refer to Charging System Tests in Section
6Y, Engine Electrical.
TEMPERATURE (COOLING SYSTEM) INDICATOR
The temperature indicator circuit consists of two re-
motely located units, indicator lamp and sending unit.
The "indicator lamp, located in the instrument cluster
CHfVROtEr CHASM SfXVICf
Page 552 of 659
ELECTRICAL-BODY AND CHASSIS 12-40
Fig.
54 - Seat Separator Instrument Console
consists of a single red light which will indicate an over-
heated engine condition.
Engine Sender Unit Replacement
1.
Drain engine cooling system to a level below unit.
2.
Remove sender unit (located in cylinder head near
an exhaust port on L-6 engines and in the inlet mani-
fold near water pump housing on V-8 engines).
3.
Replace unit, refill cooling system and check opera-
tion of unit.
DIRECTIONAL SIGNAL
Directional signal assemblies provide as standard pro-
duction equipment a lane changing feature and hazard
warning system on all model applications. Two different
design switches are used as shown in Figure 55. Major
difference between the two units is that one type has can-
celling and detent springs which are serviceable, other-
wise both units are not repairable and must be replaced
as an assembly in service.
Due to the integral design relationship of the signal
switch and the energy absorbing steering column, refer-
ence should be made to Steering, Section 9 of this manual
whenever any service operations are performed on the
steering column. The directional signal switch replace-
ment procedures covered in this section are intended to
supplement the detail service operations outlined in Sec-
tion 9.
Special note should be taken of the fact that different
signal flasher units are used in Chevrolet models depend-
ent on the number of lamps to be operated. The hazard
warning unit, even though an integral component of the
directional switch assembly, requires the installation of
an additional flasher unit in the fuse panel capable of op-
CHEVROtET CHASSIS SERVICE MANUAL
Page 568 of 659
ELECTRICAL-BODY
AND
CHASSIS
12-56
DEPRESSED PARK 2-SPEED WIPER
AND
WASHER
CORVETTE
GENERAL DESCRIPTION
The 2-speed windshield wiper
(fig. 91)
consists
of a
compound wound
12
volt dc motor and
a
gear box section
containing
the
gear mechanism
and
relay control.
The
motor armature
is
fitted with
a
worm gear which drives
the main gear assembly and crank arm.
The relay control, consisting
of a
relay coil, relay
armature
and
switch assembly,
is
located in the gear
box"
section and controls the starting and stopping of the wiper
through
a
latching mechanism (fig. 92).
An electric .washer pump
is
mounted
on the
gear box
section
of the
wiper
and is
driven by the wiper unit gear
assembly (fig. 93).
SERVICE OPERATIONS
WIPER MOTOR
AND
WASHER
PUMP ASSEMBLY
REMOVAL AND INSTALLATION
1.
Raise vehicle hood
and
disconnect, ground lead
at
battery.
2.
Remove engine distributor shielding
and
left bank
spark plug wire vertical shield.
3.
Disconnect left bank spark plug wire bracket-to-
manifold and position assembly to one side.
4.
Disconnect ignition resistor at firewall, then remove
washer pump inlet
and
outlet hose
at
pump valve
assembly.
5.
Remove engine distributor
cap
and position
to one
side;
then disconnect washer pump
and
motor
as-
sembly lead wires.
6. Remove glove
box
door
and
compartment. Refer
to
Section
1
for
removal procedure.
7.
Make sure wiper arms
and
wiper motor are both
in
the parked position; then remove
the
wiper trans-
mission retaining clip and disconnect both transmis-
sion and spacer from crank arm (fig. 93).
8. Remove four wiper motor-to-dash wall mounting
bolts and remove wiper motor from vehicle.
9. With
the aid of
an assistant position the wiper motor
to
the
dash wall
and
install the four motor mounting
bolts,
making sure motor assembly
is in
parked
position.
GEAR
BOX
SECTION
—<
MOUNTING
^*^
GROMMET
MOTOR
_/
SECTION
MOUNTING
/"""GROMMET
ARMATURE
END
PLAY
ADJUSTING SCREW
AND LOCK
NUT
P
^
CRANK
^_ /GROMMETS
RELAY
Fig.
92 -
Relay Control
10.
Position left transmission assembly, spacer
and
right transmission assembly
on
crank arm, then in-
stall
the
retaining clip
in the
groove
in
the crank
arm.
11.
Install glove compartment and door assembly. Refer
to Section
1
for
installation procedure.
12.
Install washer pump and motor assembly lead wires;
then install engine-distributor cap.
13.
Install washer pump inlet
and
outlet hose
to
pump
valve assembly, then install ignition resistor
to
firewall.
14.
Connect left bank spark plug wire bracket-to-mani-
fold, vertical shield and engine distributor shielding.
ROTOR
CAM. ^
CAM SLOT-~-*"'-*
WASHER PUMP^.
DRIVE
PIN
m
M
VALVE
— ASSEMBLY
i
Fig.
91 - Wiper Assembly—Corvette
Fig.
93 - Washer Pump
CHEVROLET CHASSIS SERVICE MANUAL
Page 572 of 659
ELECTRICAL-BODY AND CHASSIS 12-60
....
£
VALVE ASSEMBLY
mm
BROWN
*yr
RED '
WATER
INTAKE
PORT
|f|i
Wjjm WATER
|HP DISCHARGE
W PORTS
WASHER
PUMP
ASSEMBLY
Fig.
102 - Washer Pump Assembly
5. Remove gear mechanism from the gear box and slide
spacer washer (No. 9) off the gear assembly eccen-
tric shaft.
6. Slide the drive plate and shaft assembly (No.. 11) out
of the gear, assembly, remove the lock and drive
pawls (Nos. 12 and 13) and remove the coil spring
(No.
14).
Reassembly
1.
Assemble lock and drive pawls to the shaft and drive
plate assembly as shown in Figure 99.
2.
Install the assembled parts from Step 1 in the gear
and eccentric shaft as shown in Figure 100.
3.
Connect the coil tension spring between the lock and
drive pawls (fig. 100).
4.
Reinstall spacer washer on the eccentric shaft of the
gear.
5. Reinstall gear mechanism in the housing as shown in
Figure 101.
6. Reassemble the parts removed in Steps 1 through 4
under drive gear disassembly.
The washer pump and/or valve assembly (fig. 102) may
be removed from the wiper assembly as a unit; therefore
it is- not necessary to remove the. wiper assembly from
the vehicle if only the washer pump and/or valve assem-
bly requires service.
WASHER PUMP SECTION
PUMP REPLACEMENT
. To replace the washer pump assembly proceed as
follows:
1.
Raise vehicle hood and remove engine distributor
shielding and distributor cap.
2.
Remove lead wires from washer pump and disconnect
ground wire from screw retained connector; discon-
nect hoses from valve unit.
3.
Remove four screws which secure the washer pump
assembly to the gear box.
a* The water inlet and outlet valve assembly is
serviced as a unit if required; also the rotor cam
is serviced separately.
4.
Install washer pump and cover assembly so that the
slot in the washer pump cam fits over the pin on the
wiper unit drive plate.
5. Install the four washer pump to gear box retaining
screws, position ground lug under lower screw.
6. Connect valve inlet and outlet hoses, attach ground
lead and washer pump lead wires.
7. Install engine distributor cap and shielding.
8. Lower hood and check operation of wiper unit.
SPECIAL TOOLS
J-21932
BEZEL NUT REMOVER
Fig.
103 - Special Tools
CHEVROLET CHASSIS SERVICE MANUAL
Page 573 of 659
ELECTRICAL-BODY
AND
CHASSIS
12-61
R.H. FENDER
LAMP (1.6600)
R.H. PARK &
DIR.
S1G. LAMP.
L.H. PARK &
DIR.
SIG. LAMP
L.H. FENDER
LAMP (16600)
Fig.
104 - Front Lighting & Engine Compartment — Chevrolet
CHEVROLET CHASSIS SERVICE MANUAL
Page 578 of 659
ELECTRICAL-BODY
AND
CHASSIS
12-66
R.H. PARK
&DIR.
SIG. LP
L.H. PARK
& DQU SIG.
LP,
GROUND
TO
FENDER REINF
BRAKE FLUID
ill WARNING SW.
Fig.
109 - Front Lighting and Engine Compartment — (Chevelie)
CHEVROLET CHASSIS SERVICE MANUAL
Page 582 of 659
ELECTRICAL-BODY AND CHASSIS 12-70
20DBL
16BRN
20LBL
20B -
12R—
Fig.
113 - Front Lighting & Engine Compartment — Chevy H
CHEVROLET CHASSIS SERVICE MANUAL
Page 586 of 659
ELECTRICAL-BODY AND CHASSIS 12-74
R.H. PARK&
DIR. SIG. LAMP
\L2 BRNf
18 Y—
12 BRN
18 LBL4-
18DBL
12 P
18 LG
18 P
DASH
PANEL
RESISTOR
TEMP.
SENDER
R.H. LIMIT SW.
L.H. LIMIT SW.
GY/B,
16 DBL
BRK FLUID
WARNING
16
W
20 OR
20 B
BACK-UP
LMP.
SW,
20 B
16 B/W
18 T
NEU.
SFT.
SW. I
RPO
M35
4BRN/W
16 B
M18DG
4 OR
DIR. SIG.
&
DIR.
SIG. LAMP
Fig. 117 - Front Lighting & Engine Compt — Corvette
CHEVROLET CHASSIS SERVICE MANUAL