lights CHEVROLET CAMARO 1967 1.G Chassis Workshop Manual

GENERAL INFORMATION 0-7

a vise using leather or wood on each side to prevent

damage to the cylinder,

7. Stake the retainer securely in place by staking the

cylinder metal over both edges of the retainer ends

using a suitable staking tool at right angles to the

top of the retainer and from the cast metal of the

cylinder over the retainer at each corner.

PUSHING, TOWING AND LIFTING

Pushing

NOTE:
Towing car to start is not recommended

due to the possibility of the disabled car ac-

celerating into tow car.

AUTOMATIC TRANSMISSION

Do not attempt to start the engine by pushing the car.

Should the battery become discharged, it will be neces-

sary to use an auxiliary battery with jumper cables to

start the engine.

CAUTION: To prevent damage to electrical

system, never connect booster batteries in ex-
cess of 12 volts and connect positive to positive

and negative to negative.

Manual Transmission

When a push start is necessary turn off all electrical

loads such as heater, radio, and if possible, lights, turn

on the key, depress the clutch, and place the shift lever

in high gear. Release the clutch when your speed reaches

10 to 15 miles per hour.

TOWING

The car may be towed safely on its rear wheels with

the (selector lever in "N" (Neutral) position at speeds

of 35 miles per hour or less under most conditions.

However, the drive shaft must be disconnected or the

car towed on its front wheels if 1) Tow speeds in excess

of 35 MPH are necessary, 2) Car must be towed for ex-

tended distances (over 50 miles) or, 3) Transmission is

not operating properly. If car is towed on its front

wheels, the steering wheel should be secured to maintain

a straight ahead position.

DRIVE ON HOIST

BUMPER JACK LIFTING AT FRAME ATTACHMENT ONLY

FLOOR JACK OR HOIST LIFT

Fig.
21-Vehicle Lifting Pointe-Chevroiet

CHEVROLET CHASSIS SERVICE MANUAL

ENGINE-ELECTRICAL 6Y-10

circuit. Make absolutely certain all connections in

the circuit are secure.

5.
Do not short across or ground any of the terminals

on the generator or regulator.

6. Do not attempt to polarize the generator.

7.
Do not disconnect lead at generator without first dis-

connecting battery ground cable.

Trouble in the A.C. charging system will usually be

indicated by one or more of the following conditions:

1.
Faulty indicator lamp or ammeter operation.

2.
An undercharged battery (usually evidenced by slow

cranking speeds).

3.
An overcharged battery (usually evidenced by exces-

sive battery water usage).

4.
Excessive generator noise or vibration.

Described below are a series of on-the-vehicle quick

checks which are designed to assist the service tech-

nician in locating troubles within the various components

of the engine electrical system. Additional checks, ad-

justments and overhaul procedures of these components

are also described in the "Charging Systems—Service

Operations Section" and should be referred to as

necessary.

STATIC CHECKS

Before making any electrical checks, perform the fol-

lowing static checks:

1.
Check for loose fan belt.

2.
Check for defective battery. (Refer to Battery).

3.
Inspect all connections, including the slip-on con-

nectors at the regulator and Delcotron.

NOTE: Do not short field to ground to check if

generator is charging since this will seriously

damage the charging system.

SYSTEM CONDITION TEST

This test is used .to indicate the overall condition of the

charging system (both good and defective) and to isolate

the malfunctioning unit if the system is defective.

NOTE: On Corvette models difficulty may be

encountered -when attempting to make the re-
quired test connections at the voltage regulator.

It is advisable to remove the regulator from its

mounting location to perform the necessary con-

nections at the regulator for the following tests

but make sure unit is grounded.

1.
With ignition off, perform the prescribed Static

Checks outlined in this section. Then set hand brake

and shift transmission
into
neutral.

2.
Connect a voltmeter from junction block relay to

ground at regulator base.

CAUTION: Be sure meter clip does not touch a

resistor or terminal extension under regulator,

3.
Connect a tachometer on engine.

4.
Models equipped with Indicator Lamp: Turn ignition

switch on "ON" position and check indicator lamp.

If lamp fails to glow, perform appropriate tests and

corrections (Indicator Lamp Circuit Tests) before

continuing.

Models equipped with Ammeter: Turn ignition

switch to "ACC" with an accessory on and check

ammeter. If ammeter fails to read discharge, check

ammeter circuit before continuing.

5.
Models equipped with Indicator Lamp: If lamp glows,

start the engine and run' it at 1500 rpm or above.

Check indicator lamp. If lamp fails to go out, per-

form appropriate test and corrections (Indicator

Lamp Circuit Test) before continuing.

Models equipped with Ammeter: If ammeter reads

discharge, start the engine and observe ammeter. If

meter fails to move toward charge (from original

position), perform appropriate test and corrections

(Field Circuit Tests) before continuing.

NOTE: At this point a field circuit has been

established and any other problem will lie in

generator or regulator.

6. Turn on high-beam headlights and heater blower

motor to high speed, run engine at or above 1500

rpm (for a few minutes, if necessary) and read the

voltage on meter.

AIR GAP

ADJUSTING NUT

ONLY

ADJUSTING SCREW

(Turn To Adjust

Voltage Setting)

Fig.
6c—Adjusting Voltage Setting

CHEVROLET CHASSIS SERVICE MANUAL

ENGINE-ELECTRICAL 6Y-22

ADJUST DWELL

ANGLE SETTING OR

POINT OPENING

Fig.
lOi—Settihg Point Opening

To adjust the contact point opening:

1.
If necessary, align points (fig. 9i) by bending the

fixed contact support. Do not bend the breaker lever.

Do not attempt to align used points; replace them

where serious misalignment is observed. Use an

aligning tool if available.

2.
Turn or crank the distributor shaft until the breaker

arm rubbing block is on the high point of the cam

lobe.
This will provide maximum point opening.

3.
Loosen the contact support lock screw.

4.
Use a screw driver (fig. lOi) to move the point sup-

port to obtain a .019" opening for new points and a

.016"
opening for used points.

5.
Tighten the contact support lock screw and recheck

the point opening.

6. After checking and adjusting the contact point open-

ing to specifications, the cam angle or dwell should

be checked with a dwell angle meter if such equip-

ment is available (see Specifications for proper dwell

angle).
If the cam angle is less than the specified

minimum, check for defective or misaligned contact

points or worn distributor cam lobes. The variation

in cam angle readings between idle speed and 1750

engine rpm should not exceed 3°. Excessive varia-

tion in this speed range indicates wear- in the

distributor.

NOTE:
Cam angle readings taken at speeds

above 1750 engine rpm may prove unreliable

on some cam angle meters.

Eight Cylinder Engine Distributor

On the Vehicle

With the engine running at idle and operating tempera-

tures normalized, the dwell is adjusted by first raising

the window provided in the cap and inserting a "Hex"

type wrench into the adjusting screw head (fig. Hi).
WINDOW

r- "HEX" TYPE

WRENCH

ADJUSTING

SCREW

Fig.
-lli—Adjusting Dwell Angle

1.

Preferred Method - Turn the adjusting screw until

the specified dwell angle is obtained as measured in

degrees (28° to 32°, 30° preferred) by a dwell angle

meter.

2.
Alternate Method - Turn adjusting screw in (clock-

wise) until the engine begins to misfire, then turn

screw 1/2 turn in the opposite direction (counter-

clockwise). This will give the approximate dwell

angle required. (Use only when meter is not

available.)

Off the Vehicle

1.
Distributor Test Method:

a. With the distributor mounted on a distributor

testing machine, connect the dwell meter to the

distributor primary lead.

b.
Turn the adjusting screw (fig. lli) to set the dwell

angle to 30 degrees.

2.
Test Light Method:

a. With the distributor mounted in a vise, connect a

testing lamp to the primary lead.

b.
Rotate the shaft until one of the circuit breaker

cam lobes is under the center of the rubbing block

of the breaker lever.

c. Turn the adjusting screw clockwise (fig. lli) until

the lamp lights, then give the wrench 1/2 turn in

the opposite direction (counter-clockwise) to ob-

tain the proper dwell angle.

DISTRIBUTOR CONDENSER

PERFORMANCE DIAGNOSIS

The following four factors affect condenser perform-

ance,
and each factor must be considered in making any

condenser test.

1.
Breakdown - A failure of the insulating material. A

direct short between the metallic elements of the

condenser. This prevents any' condenser action.

2.
Low Insulating Resistance (Leakage) - Low insula-

tion resistance prevents the condenser from holding

a charge. All condensers are subject to leakage

which, up to a certain limit, is not objectionable.

3.
High Series Resistance - Excessive resistance in

the condenser circuit due to broken strands in the

CHEVROLET CHASSIS SERVICE MANUAL

SECTION 12

ELECTRICAL-BODY AND CHASSIS

CONTENTS
OF
THIS
SECTION

Page
Page

System 12-1

Instruments and Gauges 12-21

Directional Signal 12r40
Windshield Wipers and Washers 12-44

Wiring Diagrams 12-56

Special Tools 12-60

LIGHTING SYSTEM

INDEX

Page

General Description
!2-i

Maintenance and Adjustments
•.................. 12-2

Headlamp Adjustment......................
12-3

Headlamp Panel Travel Adjustment.
12-5

Service Operations.
. . .. 12-5

Front Lighting
12-5

Headlamp
. 12_5

Parking Lamp
12-5

Fender Lamp
. 12_^

Headlamp Panel
12-8

Headlamp Panel Motor
^2-9

Rear Lighting
l2-10

Tail, Stop and Directional Lamps
12-10
Page

Backing Lamps
12-14

License Plate Lamp
12-14

Automatic Transmission Quadrant Lamp
12-14

Seat Separator Console Lamps
. 12-15

Lighting Switch
. . 12-15

Wiper Switch.
12-15

Stoplight Switch
12-15

Dimmer Switch
12-15

Backing Lamp Switches
12-15

Neutral Safety Switches
12-17

Parking Brake Alarm Switch
................. 12-19

Instrument Panel Compartment Lamp/Switch
12-19

Cirgarette Lighter
12-19

GENERAL DESCRIPTION

.
The lighting system includes: the main lighting switch,

stop light, dimmer, and backing lamp switches, head-

lamps, parking lamps, stop, tail and directional lamps,

instrument illumination and indicator lamps, and the

necessary wiring to complete the various circuits. A

fuse panel provides convenient power take offs and fuse

clips for the appropriate circuits (fig. 1).

Chevrolet and Chevelle headlamp installation is all

new in that the headlamps are located in the radiator

support with adjusting screws and springs. Eliminating

the need for having separate headlamp housings. Chev-

rolet and Chevelle headlamp retainers and springs are

interchangeable.

Chevy n headlamp housings are new because of revised

front end styling and Corvette front end lighting is basi-

cally carryover.

Front fender lamps have been added as an option for

Chevrolet models and as standard equipment on Caprice

series.

Camaro models use single headlamps and the Rally

Sport model headlamps are covered by a retractable

section of the grille when lamps are not used. The sec-

tion of the grille covering the headlamps folds back when

lights are required; the headlamps are stationary. The

covering is retracted by a small electric motor mounted

to the headlamp housing. The headlamps are automat-

ically uncovered when the headlight switch is pulled "ON"

for illumination. If at any time the electrical circuit

becomes inoperative, the lamps can be uncovered manu-

ally. The ignition switch must be
"ON"
in order to close

the headlamp doors.

Parking lamp for Chevelle and Chevrolet models are
new due to revised front end sheet metal and bumper

styling. Parking lamps are located in the bumper on

Chevrolet, Chevelle and Chevy n models

Camaro parking lamps are located in the radiator

grille except for the Rally Sport models on which the

parking lamps are in the valance panel. For styling

reasons, the lens is white and an amber glass bulb is

used. All Camaro parking lamps require a separate

ground wire to assure a good ground contact because of

the plastic grille and painted contact surfaces.

The Chevrolet tail, stop, and directional lamps are in

one housing with a three section lens design on Impala

and Caprice sedans. The center lens for Impala series

is the back-up lamp. The center lens on the Caprice is

a tail lamp with the back-up lamps being located in the

rear bumper. Chevrolet station wagons have three indi-

vidual housings with three lenses, the center lamp being

the back-up. Biscayne and Bel-Air sedans have a single

housing and lens for tail, stop, and directional lamp with

a similarly constructed back-up lamp inboard and adja-

cent to it.

Chevelle tail, stop, and directional lamps are a single

lens design that follows through with the rear fender

styling. The back-up lamp is located in r.ear bumper.

Camaro models except Rally Sport have tail lamps

with integral back-up lamps mounted inboard of the rear

fenders between the trunk opening and bumper. The

Rally Sport model has dual tail lamps in the rear housing

and valance mounted back-up lamps.

Corvette, Chevy n, and Corvair tail and directional

signal lights are carryover. The Corvette has new back-

up lamps center mounted above the license plate opening.

CHEVROLET CHASSIS SERVICE

ELECTRICAL-BODY AND CHASSIS 12-2

FJg.
1 - Fuse Panel Assembly

All power window and tailgate circuits require the igni-

tion switch to be "ON" to open or close the windows un-

like past model designs which were operated independ-

ently of the ignition switch.

The windshield wiper and washer switch is new in that

washer button in the center of the knob has been deleted
and its function will be accomplished by pushing the knob.

A set screw is used to retain the knob to the shaft.

In addition to fuses, the wiring harness incorporates

fusible links to protect the wiring. Links are used rather

than a fuse in wiring circuits that are not normally fused,

such as the ignition circuit. Fusible links in the Chevro-

let wiring are four gauge sizes smaller than the cable it

is designed to protect. The links are marked on the

insulation with wire gauge size because of the heavy insu-

lation which makes the link appear a heavier gauge than it

actually is.

Engine compartment wiring harness incorporate sev-

eral fusible links. Each link is identified with its gauge

size.
A fusible link is a length of special wire (normally

four wire gauges smaller than the circuit it is protecting)

used in wiring circuits that are not normally fused, such

as the ignition circuit. The same size wire with a spe-

cial hypalon insulation must be used when replacing a

fusible link.

The links are:

1.
The pigtail lead at the battery positive cable (except

Corvette) is a 14 gauge, brown fusible link protecting

the 10 gange battery charging circuit. This wire is

an integral part of the battery cable assembly and

servicing requires replacing the complete battery

cable assembly. On Corvette models this link is

installed as a molded splice at the solenoid "Bat"

terminal and servicing requires splicing in a new

link.

2.
A 16 gauge black fusible link is located at horn relay

to protect all unfused wiring of 12 gauge or larger.

It is a serviceable piece with an in-line connector

and is not integral with the wiring harness.

3.
The generator warning light and field circuitry (16

gauge wire) is protected by a fusible link (20 gauge

orange wire) used in the "battery feed to voltage

regulator #3 terminal" wire. The link is installed

as a molded splice in the generator and forward lamp

harness and is serviced by splicing in a new 20 gauge

wire as required.

4.
The ammeter circuit on all models is protected by

two orange, 20 gauge wire fusible links installed as

molded splices in the circuit at the junction block or

the solenoid "Bat" terminal (Corvette only) and at the

horn relay. Each link is serviced by splicing in a

new 20 gauge wire as required.

The wiring harnesses use a standarized. color code

common to all Chevrolet vehicles. Under the color code,

the color of the wire designates a particular circuit. The

harness title indicates the type of harness, single of mul-

tiple wire, and also describe the location of the harness.

The body harness is a flat, solid wire assembly and is

routed through the vehicle near the center of the body.

Composite wiring diagrams (figs. 104 thru 124) are in-

cluded at the end of this section.

MAINTENANCE AND ADJUSTMENTS

Maintenance of the lighting units and wiring system

consists of an occasional check to see that all wiring

connections are tight and clean, that the lighting units are

tightly mounted to provide good ground and that the head-

lamps are properly adjusted. Loose or corroded con-

nections may cause a discharged battery, difficult start-

ing, dim lights, and possible damage to generator and

regulator. Wire harnesses must be replaced if insulation

becomes burned, cracked, or deteriorated. Whenever it
is necessary to splice a wire or repair one that is bro-

ken, always use solder to bond the splice. Always use

rosin flux solder on electrical connections. Use insulat-

ing tape to cover all splices or bare wires.

When replacing wires, it is important that the correct

size be used. Never replace a wire with one of a smaller

size.

Each harness and wire must be held securely in place

by clips or other holding devices to prevent chafing or

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-16

BACK-UP LAMP CONN.

CONSOLE CTSY

LAMP CONN

CLOCK CONN

NEUTRAL SAFETY SWITCH

Fig.
22 - AutoTrans — Seat- Separator Wiring — Chevelle

TAIL

PANEL Ll<

J
TAIL

LIGHTS ^^g

9

""TUtflll -^ ""

DOME
LIGHT

r

•I

m

/

LIGHTS
FUSE HEADLIGHTS

9R

jl PARKING LIGHTS

*^ R ATTPRY

Fig.
23 - Light Switch Terminal Connections
Fig.
24 - Light Switch and Cigarette

Lighter Installation

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-21

2.
Remove ash tray, retainer attaching screws and

retainer.

3.
Remove Air Conditioning distributor
duct'
retaining

screws and duct.

4.
Remove heater and/or Air Conditioning control panel

assembly retaining screws and push panel assembly

from console.

NOTE:
If interference between control panel

and radio is encountered, loosen radio retaining

nuts.

5. Remove radio control knobs, bezels and retaining

nuts.

6. Disconnect radio wiring harness and antenna lead-in.

7. Remove radio rear brace attaching screw and re-

move ra(Jio from vehicle.

8. Remove ignition switch bezel nut using Tool J-7607

and push switch rearward.

9. Disconnect cigarette wiring connector.

10.
Remove cigarette lighter retainer and lighter as-

sembly from console.

11.
To install, reverse removal procedure.
Fig.
35 - Cigarette Lighter — Chevelle

CHEVROLET INSTRUMENTS AND GAUGES

INDEX

Page

General Description 12-21

Service Operations 12-22

Instrument Cluster........................ 12-22

Instrument Cluster Lamps 12-22

Printed Circuit .
* •
12-22

Speedometer 12-22

Speedometer Cable 12-23

Fuel Gauge 12-23
Page

Clock 12-24

Tachometer 12-24

Ammeter . . 12-24

Temperature Gauge 12-24

Oil Pressure Gauge 12-24

Oil Pressure Indicator 12-24

Generator Indicator 12-26

Temperature Indicator 12-26

GENERAL DESCRIPTION

The standard instrument cluster on all models contains

seven circular housings consisting of: a speedometer;

fuel gauge; oil pressure, generator and temperature indi-

cators; right and left directional signal indicators; brake

warning and high beam indicators; and includes a clock

on deluxe models. An optionally available instrument

cluster provides special instrumentation which includes

in addition to the speedometer and clock: a tachometer;

fuel, oil pressure, ammeter and engine temperature

gauges; which replace the standard fuel gauge and indi-

cator lights. The brake warning indicator is relocated

to the tachometer dial face and the high beam and direc-

tional indicators are positioned in the speedometer dial

face.

Instrument cluster removal is recommended before at-

tempting to service the printed circuit and gauges even

though some units may be accessible from behind the

cluster. Limited working space under the instrument

panel increases the possibility of electrical malfunctions

due to poor connections, and damaged or improperly in-

stalled printed circuit. The printed circuit is service-

able but not repairable and requires complete
replacement.

The brake warning light serves a dual purpose. It

functions as an indicator when the parking brake is ap-

plied and also warns if a malfunction (loss of hydraulic

pressure) should occur in the brake system. The two

separate switches, which provide the signal to operate the

indicator, are located at the parking brake support and in

the hydraulic brake line at the master cylinder. Service

of the brake pressure, differential switch unit at the

master cylinder is described in Section 5 of this manual.

All indicator and cluster illumihating lamps may be

replaced without removing the cluster from the vehicle.

The bulbs are installed in plastic holders which lock into

the cluster housing and make contact with the printed

circuit. An instrument lamp is used to illuminate the

ignition switch. A special fibre optic lucite wiring

transmits light from the lamp to the switch.

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 cable properly lubricated.

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-22

SERVICE OPERATIONS

INSTRUMENT CLUSTER

Removal and Installation (Figs. 36 thru 40)

I. Disconnect battery ground cable.

2:
Remove four screws retaining instrument bezel to

top edge of instrument console. Disengage tabs on

bezel lower section from clips on instrument console

and remove bezel.

3.
Protect mast jacket to prevent scratching when re-

moving cluster assembly.

4.
Remove eight screws securing leading edges of in-

strument cluster to console and pull cluster forward

from console opening.

5. Reaching behind cluster disconnect speedometer ca-

ble,
chassis harness connector, clock and speed

warning device connections (if so equipped) at rear of

cluster.

NOTE:
On models- with gauge pack, disconnect

oil pressure line also.

6. When all disconnects are made, remove cluster as-

sembly from vehicle.

7. To install, position cluster assembly to console

opening and connect speedometer cable, chassis

harness connector and other electrical connections

as required.

8. Position cluster in console opening and install eight

retaining screws.

NOTE:
Make sure ground strap between

cluster case and center right lower attachment

is properly installed.

9. Engage tabs on instrument bezel with clips on con-

sole and position bezel in console opening, then in-

stall four retaining screws.

10.
Install speed warning device control attaching nut and

knob,
if so equipped.

II.
Connect battery ground cable and check operation of

cluster assembly.

Fig. 36 - Instrument Cluster Installation — Chevrolet
Fig. 37 - Speed Warning Device

INSTRUMENT CLUSTER LAMP REPLACEMENT

(Figs.
38 and 39)

1.
Rotate socket counterclockwise to remove from rear

of cluster housing.

2.
To remove bulb, if socket is black color, pull bulb

straight out. If socket is gray color, depress and

rotate bulb, then pull out.

3.
Install replacement bulb in socket, pressing inward

to lock in place.

4.
Insert socket into housing, with lugs entering notches

in case, and rotate clockwise to lock in place.

PRINTED CIRCUIT REPLACEMENT (Figs. 38 and 39)

1.
Remove instrument cluster as previously described

in this section.

2.
Remove all cluster illuminating and indicator lights

from cluster housing.

3.
Remove fuel gauge and clock terminal nuts securing

printed circuit to housing.

4.
Remove four hex head screws retaining printed cir-

cuit to the cluster housing and remove the printed

circuit. . .

5. To install, reverse removal procedure.

CAUTION:. The retaining screws and terminal

nuts are part of the grounding circuit and must

be installed to provide the proper ground con-

nections for the printed circuit.

SPEEDOMETER
REPLACEMENT

1.
Remove instrument cluster as previously described

in this section.

2.
Remove screws retaining rear cover to the cluster

assembly. Bend ground strap away from cover and

remove cover.

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY
AND
CHASSIS
12-26

•
Low oil
pressure

• High engine temperature

• Defective wiring
or
switch

connector from sender

in block above starter
on

and
at
left front
of
distributor
on V-8
Sending Unit Replacement

1.
Disconnect wiring harness

unit terminal (located

L-6 engines

engines).

2.
Remove sender unit using Tool J-21757
or 12
point

socket, replace with
new
unit
and
check operation.

GENERATOR INDICATOR

1.
Ignition
on,
Engine
not
Running
and
Telltale Light

Off.

• Indicator bulb burned out, replace bulb.

• Open circuit
or
loose connection
in the
telltale

light circuit.

2.
telltale Light Stays
on
after Engine
is
Started.
If indicator light does
not go out at
engine idle

speed, refer
to
Charging Systems under Engine

Electrical, Section
6Y.

TEMPERATURE (COOLING SYSTEM) INDICATOR

The temperature indicator circuit consists
of two re-

motely located units, indicator gauge
and
engine sender

unit.
The
indicator gauge, located
in the
instrument

panel, consists
of a
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 the
inlet manifold

near water pump housing
on V-8
engines and
in the

cylinder head near
an
exhaust port
oh L-6
engines)

and replace with new unit.

3.
Refill cooling system
and
check operation
of
unit.

CHEVELLE INSTRUMENTS AND GAUGES

INDEX

Page

General Description
* *
i2-26

Service Operations
12-26

Instrument Panel
12-26

Instrument Cluster.
12-26

Fuel Gauge and/or Ammeter
12-27

Clock,
i 12-27

Speedometer
12-27
Page

Speedometer Cable
.
. 12-27

Temperature Gauge
12-29

Oil Pressure Gauge
12-29

Indicator Lights.
. 12-29

Oil Pressure Indicator
12-29

Generator Indicator
. . 12-29

• Temperature Indicator
12-29

GENERAL DESCRIPTION

The Chevelle instrument cluster assembly consists
of:

a speedometer;
a
fuel gauge;
a
generator,
an
engine
tem-

perature and an
oil
pressure indicator lamp, and includes

a clock
on
deluxe models.
On
super sport models,
am-

meter, coolant temperature
and oil
pressure gauges
re-

place
the
appropriate indicator lights. Except
for the

speedometer,
all of the
indicator lamps, instruments
and

gauges
of
these clusters may
be
serviced without remov-

ing
the
instrument cluster assembly from
the
vehicle.

In addition
to the
instrument indicator lamps,
a
brake

warning lamp
is
included
in the
cluster
as
standard

equipment.
The
indicator
is
connected
to the
parking
brake
and
brake pressure differential switches
and

serves
a
dual function.
It
lights when the parking brake

is applied
and
also when
the
brake pedal
is
applied,
if a

malfunction should occur
in the
brake system
due to a

loss
of
hydraulic pressure. Servicing
of the
hydraulic

pressure differential switch
is
covered
in
Section
5 of

this manual.

Regular maintenance
is not
required on the instrument

cjLuster
or its
components other than maintaining dean

and tight electrical connections, replacing defective parts

and keeping
the
speedometer cable properly lubricated.

SERVICE OPERATIONS

INSTRUMENT PANEL ASSEMBLY

INSTRUMENT CLUSTER (Figs.
41
thru
44)

Removal

1.
Disconnect battery ground cable.

2.
Remove steering coupling bolt and disconnect steer-

ing shaft from coupling.

3.
Loosen mast jacket lower clamp.

4.
Remove
air
conditioning center distributor duct
(if

so equipped).

5. Remove radio rear support bracket screw.

6. Remove mast jacket upper support clamp and retain-

ing bolts from lower support (refer
to
Section
9,

Steering).
CAUTION: Cover mast jacket
and
parl

brake handle with
a
suitable material
to
prevc

scratching.

7.
Disconnect speedometer cable
at
rear
of
cluster

housing
and
speed warning control knob
at
panel
(if

so equipped).

8. Remove instrument panel retaining screws (nine

upper and five lower).
.

9. Working under the console remove four lower retain-

ing screws from instrument cluster housing.

10.
Pull instrument panel assembly from console and
lay

forward on mast jacket.

11.
Disconnect wiring harness, cluster lamps and wiring

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY
AND
CHASSIS
12-31

CHEVY II INSTRUMENTS AND GAUGES

INDEX

Page
Page

General Description -.....
12-31

Service Operations.
12-31

Instrument Panel
. 12-31

Instrument Cluster
12-31

Fuel Gauge
12-32

12-32
Clock,
Speedometer
12-34

Speedometer Catte
12-34

Indicator Lights
12-34

Oil Pressure Indicator
12-34

Generator Indicator
12-34

Temperature Indicator
12-34

GENERAL DESCRIPTION

The Chevy
n
instrument cluster assembly consists
of:

a speedometer;
a
fuel gauge;
a
generator, temperature

and
oil
pressure indicator lamps, and includes
a
clock
on

deluxe models. Except
for the
speedometer,
all of the

cluster lamps, instruments and gauges
of
the cluster
may

be serviced without removing
the
instrument cluster
as-

sembly from
the
console.

In addition
to the
instrument indicator lamps,
a
brake

warning lamp
is
included
in the
cluster
as
standard

equipment.
The
indicator
is
connected
to
thfc parking

brake and brake pressure differential switches andserves
a dual function.
It
lights when
the
parking brake
is ap-

plied
and
also when
the
brake pedal
is
applied,
if a mal-

function should occur
in the
brake system
due to a
loss
of

hydraulic pressure. Servicing
of the
hydraulic pressure

differential switch
is
covered
in
Section
5 of
this manaul.

Regular maintenance
is not
required on
the
instrument

cluster
or its
components other than r^Mfitftl^i^g clean

and tight electrical connections, replacing defective parts

and keeping
the
speedometer cable properly lubricated.

SERVICE OPERATIONS

INSTRUMENT PANEL

INSTRUMENT CLUSTER

Removal
and
Installation {Figs.
45
thru
48)

1.
Disconnect battery ground cable.

2.
Remove mast jacket upper support clamp (refer
to

Steering, Section
9, for
complete procedure
on low-

ering jacket) and lower steering column.

NOTE:
Apply protective material
to the
mast

jacket
to
prevent damage
to the
painted surfaces.
3.
Disconnect retaining collar securing speedometer

cable
to
speedometer head.

4.
Remove screws retaining cluster
to
console.

5. Pull cluster forward
of
console opening and discon-

nect
all
wiring
and
lamp connections. Remove

cluster from vehicle.

CAUTION:
Do not
pull cluster outward further

than slack
in
wiring harness will allow, other-

Fig.
45-
Instrument Cluster Installation
—
Chevy
II

Fig.
46 -
Speed Warning Device

CHEVtOtET CHASSIS SERVICE MANUAL