fuses CHEVROLET CAMARO 1967 1.G Chassis Workshop Manual

HEATER AND AIR CONDITIONING 1A-73

Fig.
105—Comfortron Control Head

10.
Introduce R-12 vapor at cylinder (room) temperature

and pressure.

11.
Leak test all fittings and connections and give partic-

ular attention to a leak test at the compressor shaft

seal if compressor has not been leak tested on the

bench.

12.
Complete system processing and charge system.

FUSES

A fuse, located in the junction block protects the entire

air conditioning system except for the blower when op-

erating at high speed.

A second fuse, to protect the high speed blower circuit,

is located in the electrical wiring between the horn relay

and the Air Conditioner relay (except Universal). The
Universal unit has a fuse in the line between the ignition

switch and the Air Conditioner blower switch. See the

specification page for the proper replacement fuse.

FOUR SEASON HEATER COMPONENTS

Corvette

The heater components of the system are, in general,

much the same as those of the standard Corvette heater.

Heater hoses carry the engine coolant to the heater core,

located in the air distributor duct beneath the instrument

panel.

A significant difference is that in the Corvette Air

Conditioning System there is no flow through the heater

core until the COOL IN-HOT PULL knob is pulled out.

This movement opens the vacuum switch on the air

distributor assembly and allows vacuum to be applied

to the water valve mounted in the engine compartment,

opening the valve. Thus the heater core is unheated

until needed, at which time it receives full flow of the

engine coolant. Air passing through the core receives

maximum heat which is tempered by mixing with un-

heated air before entering the passenger compartment.

Heater Core

Replacement

The heater core in the Corvette Air Conditioning

System is removed in the same manner as the core in

the Corvette heater. The distributor assembly must first

be removed from under the dash as covered previously

in this section before the core can be removed and

replaced.

Water Valve

Installation of the water valve is illustrated in Figure

113.
An inoperative valve must be replaced.

Chevrolet

Heater Core

Removal

1.
Disconnect battery ground cable.

2.
Drain radiator

3.
Remove right front fender and skirt assembly.

Fig.
106—Comfortron Temperature Dial Adjustment
Fig.
107—Amplifier Removal

CHEVROLET CHASSIS SERVICE MANUAL

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

SPECIFICATIONS

HEATING
AND AIR
CONDITIONING

SECTION
1A

Compressor

Make Frigidaire

Type
. 6
Cylinder Axial

Displacement

Four-Season
12.6
Cu.
In.

Universal
and
Ail-Weather
.... .10.8 Cu. In.

Rotation Clockwise

Compressor Suction
and
Discharge

Connector Bolt Torque
.......
25 ft lbs.

Compressor Clutch Coil

Ohms
(at
80°F.).
4.18-4.38

Amps
(at
80°F.)
2.86 @ 12
Volts

Torques

Rear Head
to
SheU Stud
Nut 23 lb. ft

Shaft Mounting
Nut 15 lb. ft

Belt Tension.
See
Tune-Up Chart
System Capacities

Refrigerant
R-12

Four-Season
and
Comfortron

Systems.
............
3 lbs., 12 oz.

Universal Systems

Chevrolet, Chevelle,
and
Camaro.
... 3 lbs.

Chevy
n 2 lbs. 8 oz.

All-Weather System
2 lbs. 8 oz.

Compressor
Oil 525
Viscosity

All Systems
11 oz.

Fuses

Comfortron Systems
.

Four-Season Systems
.

Universal Systems
. .

All-Weather System.
.
Fuse

Block

25
amp.

25
amp.

25
amp.

25
amp.
In

Line

30
amp.

30
amp.

20
amp.

20
amp.

SECTION
3

WHEEL ALIGNMENT SPECIFICATIONS (Vehicle
dt
Curb Weight)

Caster*

Camber*

Steering Axis

Inclination

tToe-In (Total)

Wheel Bearing

Adjustment

Preload

End Movement
Chevrolet

Pos.
3/4° ± 1/2°

Pos.
1/4° ± 1/2°

7-1/2° ± 1/2°

@l/8"
to 1/4"

12 ft lbs.

zero

.001"
to .008"
Chevelle •

(SS and El Camino)

Neg. 1/2° ± 1/2°

(All others)

Neg. 1° ± 1/2°

Pos.
1/2° ± 1/2°

8-1/4° ± 1/2°

1/8" to 1/4"

12 ft lbs.

zero

.001"
to .008"
Chevy n

Pos.
1° ± 1/2°

Pos.
1/2° ± 1/2°

7° ± 1/2°

1/4" to 3/8"

12 ft lbs.

zero

.000"
to .004"
Corvette

Pos.
1° ± 1/2°

Pos.
3/4° ± 1/2°

7° ± 1/2°

3/16" to 5/16"

12 ft lbs.

zero

.001"
to .008"
Camaro

Pos.
1/2° £ 1/2°

Pos.
1/4° ±1/2°

8 3/4° ± 1/2°

1/8" to 1/4"

12 ft lbs.

zero

.001"
to .008"

•Must not vary more than 1/2° from side to side.

@Toe-In (Total) should be 5/16" to 7/16" after rebuild using new bushings and ball joints.

tAdjust Toe-in with steering gear on straight ahead location after camber and caster have been set Any change

in caster and camber settings will affect toe; always recheck and set toe to specifications.

LET CHASSIS SERVICE MANUAL

SPECIFICATIONS 26

LAMP USAGE (Cont'd.)
CANDLE

POWER

1

6

4

2

3

2

2

3

2

3

15

15
BULB

NUMBER

1445

212

67

1893

1816

194

1895

1816

257

1816

1003

93
Seat Separator-Compartment Lamp . . . . .

-Courtesy Lamp •

License Plate Lamp . .

Radio Dial Lamp

Chevrolet, Chevelle, Chevy n & Camaro

Corvette

Brake Alarm Lamp

. Chevrolet & Camaro . . .... . .

Chevelle & Chevy n . . . . .'. ;v . . . .

Corvette . . . . . . . .

Headlamp Mqtor Warning Lamp (Flashing) .

Clock Lamp (Corvette) .''> ....

Luggage Compartment Lamp. . ... . . . •

Underhood

FUSES AND CIRCUIT BREAKER

A circuit breaker in the light control switch protects

the headlamp circuit, thus eliminating one fuse. A

separate circuit breaker protects the power window,

seat and top circuits. On Corvettes the headlamp motor
circuit is also protected by a separate circuit breaker.

Where current load is too heavy, the circuit breaker

rapidly opens and closes, protecting the circuit until

the cause is found and eliminated.

louses located in the Fuse Panel under the instrument panel are:

Wiper (Chevrolet, Chevelle, and "F" Car) 3AF/AGC 20 Amp.

Back-up Lamp and Gauges. . . 3AG/AGC 10 Amp.

Heater - Air Conditioning 3AG/AGC 25 Amp.

Radio 3AG/AGC 10 Amp.

Radio - Wiper (Chevy II and Corvette) 3AG/AGC 20 Amp.

Instrument Lamps 3AG/AGC . 4 Amp.

Stop and Tail Lamps ........ t 3AG/AGC 20 Amp.

Clock, Lighter, Courtesy Lamps, and Hazard Warning 3AG/AGC 20 Amp.

In-Line Fuses:

Air Conditioning High Blower Speed Fuse located in wire running

from horn relay to A/C Relay

Comforton and Four Season SAE 30 Amp.

Universal & All Weather (Chevy H) SAE 20 Amp.

Fusible Links: ,

Pigtail lead at battery positive cable (except Corvette) 14 gage brown wire

Molded splice at Solenoid "Bat" terminal (Corvette only) 14 gage brown wire

Molded Splice Located at the horn relay 16 gage black wire

Molded splice in Voltage Regulator #3 terminal wire 20 gage orange wire

Molded splice in Ammeter circuit (Both sides of meter) 20 gage orange wire

CHEVROLET CHASSIS SERVICE MANUAL