1967 CHEVROLET CAMARO glove box

HEATER AND AIR CONDITIONING 1A-68

Fig.
95—Corvette Four-Season Ducts

5. Connect the various Comfortron harness connectors

to the dash wiring and connect the vacuum hose to

the kick pad valve diaphragm. Push the vacuum hose

harness and wiring harness through the firewall to

the proper location and install their respective

grommets.

6. Raise the control unit into place and install the

mounting screws. Check that all connections are

complete.

7. Replace any radio and/or tape equipment, the ash

tray assembly, and face plate.

8. Replace the glove box assembly.

9. Connect the heater hoses to the core tubes, and

attach the nuts to the case studs through the firewall.

10.
Reconnect the four vacuum hoses as follows: Purple

to the cylinder on the thermo-vacuum valve, yellow

tracer to the body of the thermo-vacuum valve, red

tracer to the vacuum source "Tee" connection, and

white tracer to the vacuum tank inlet.

11.
Connect the wiring harness to the underhood air

conditioning components.

12.
Refill cooling system, connect battery ground cable

and check system performance.

Vacuum Tank

The vacuum tank is mounted on the firewall as shown

in Figure 97. Notice that the two vacuum lines are

clamped to the vacuum tank ports. *

Thermal Vacuum Valve

This heat operated vacuum valve is located in the

heater core input line. Figure 98 illustrates valve instal-

lation with clamps attaching the water hoses as well as

the vacuum hoses in place.
Resistor Assembly

Figure 99 illustrates the location and installation of

the blower speed resistor assembly.

Relays

Two relays are used in the system, both mounted on the

evaporator case as shown in Figure 100. The mounting

bracket forms a common ground for the relays and as a

plug for the hole in the evaporator housing used in the

Four Season system for resistor installation.

Sensors (Thermistors)

Ambient Switch and Sensor

This combination unit, which engages the compressor

clutch at about 40°F and also senses outside air tem-

perature and sun load, is mounted to the firewall within

the engine compartment with its long neck extending

deep into the cowl vent plenum chamber. Figure 98 il-

lustrates this installation,

In-Car Sensor

This sensor is located beneath the lip of the instru-

ment panel overhand just to the right of the driver as

shown in Figure 101.

Removal

1.
Remove glove box assembly.

2.
Disconnect sensor wires connector at harness.

3.
Remove sensor mounting screws, remove sensor

and pull wires and connector through hole in dash.

Installation

1.
Insert connector and

through the dash hole.
wires of replacement sensor

CHEVROLET CHASSIS SERVICE MANUAL

HEATER AND AIR CONDITIONING 1A-69

Fig.
96—Refrigerant and Vacuum Hoses (Corvette)

2.
Mount the sensor to the dash and connect the wires

to the Comfortron harness.

3.
Replace glove box assembly.

Control Head

The control head is attached to the instrument panel

flange in the same manner as the Four Season Control

Panel (See Figure 105). Two screws hold the head in

place. The amplifier, blower switch and servo and

defrost control cables are all part of the control head.

Amplifier

After the control head is removed from the instrument

panel, the amplifier may be removed as shown in Figure

107.

Temperature Dial Adjustment

1.
Install Tester J-22368 as previously described.

2.
Set Tester Voltage switch to Control Calibrate

position.

3.
Start the engine (fast idle) and set Comfortron

Control lever to HI-FRONT.

4.
Switch Rocker switch to MANUAL.

5. Set Manual Control Knob to 150 ohms on scale.

6. Rotate the Control Head Temperature Dial until the

voltmeter on the tester reads 6.5 volts. The Tem-

perature Dial should now indicate 75°.

7. If the Temperature Dial does not indicate 75°, insert

Tool J-21530 in slot to the left of the Dial as shown

in Figure 106.

8. With tool in position, rotate the Temperature Dial

so that it indicates 75°F.

Transducer

Figure 104 illustrates the installation of the transducer

assembly. Vacuum lines are clamped to the transducer

vacuum ports.
Fig.
97—Comfortron Vacuum Tank

CHEVROLET CHASSIS SERVICE JWANUAl

HEATER AND AIR CONDITIONING 1A-74

Fig.
108—Comfortron Power Servo Installation

4.
Disconnect heater' hoses from heater core (at

firewall).

5. Remove glove box door.

6. Remove glove box interior.

7. Disconnect right, left, and center air conditioning

outlet hoses from distributor duct.

8. Remove air distributor duct from heater

housing.

9. Disconnect hose and cable clamps from heater

housing.

10.
Remove the remaining three heater housing stud

retaining nuts (engine compartment) and one upper

retaining screw (inside vehicle).

11.
Pull the unit away from the firewall and out of the

car.

ADJUSTMENT

SCREW

Fig.
109—Mode Shift Vacuum Diaphragm
Fig. 110'—Compressor Mount—L-6 Engines (Typical)

12.
Remove heater.housing cover from heater housing.

13.
Remove heater core from heater housing cover by

removing four (4) retaining screws and two "U"

clamps.

14.
Remove heater core.

Installation

1.
Replace core in case using a non hardening sealer.

Attach the core clamps and retaining screws.

2.
Attach the heater housing cover to the housing.

3.
Position the unit against the firewall and attach

it with the retaining screw at the top of the case.

4.
Attach the sheet metal nuts to the case studs which

project through the firewall to the engine side.

5. Connect the control cables to the control doors and

case.

6. Attach the air distributor duct to the case.

7. Connect the left, right, and center outlet hoses.

8. Replace the glove box assembly.

9. Connect heater hoses to core tubes.

10.
Replace fender assembly.

11.
Fill cooling system and connect battery cable.

Camaro

Lower Heater Hose

Removal

1.
Drain radiator.

2.
Remove side mouldings and retainers.

3.
Remove lower fender attaching bolts.

4.
Remove skirt to fender and skirt to reinforcement

bolts.

5. pry the skirt away from the fender flange and away

from the firewall. Block the skirt (four inchlengtti

of 2 x 4) clear of the lower hose and proceed with

the hose replacement.

Installation

1.
Connect the hose.

2.
Remove the block, move the skirt into position and

install all attaching bolts.

3.
Replace fender attaching bolts and mouldings.

4.
Refill cooling system.

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-19

VIEW A
•CONTACT SUPPORT

DRIVE SLOT IN LINE

WITH HOLE IN SWITCH

PAWL
CONTACT POINT B

CONTACT SUPPORT

DRIVE SLOT IN LINE

WITH HOLE IN SWITCH

FLOOR SHIFT

(EXCEPT CAMARO)
COLUMN SH

Fig.
31 - Neutral Safety Switches

PARKING BRAKE ALARM SWITCH REPLACEMENT

Corvette (Fig. 33)

1.
Remove seat belt retainer and parking brake cover

assembly from center console.

2.
Disconnect wire from brake alarm switch.

3.
Remove retaining screw and switch from

reinforcement.

4.
Position new switch to reinforcement and install re-

taining screw.

5. Connect switch wire and check operation of switch.

6. Install cover and seat belt retainer assembly.

Chevrolet, Chevelle, Chevy II and Camaro (Fig. 34)

1.
Disconnect wiring connector at switch terminal.

2.
Remove nut and lock washer or retaining bolt and

disengage switch from brace.

3.
To install, reverse removal procedure.

INSTRUMENT PANEL COMPARTMENT

LAMP/SWITCH REPLACEMENT

1.
Disconnect battery ground cable.

2.
Reach into glove box, depress bulb in end of switch
and turn counterclockwise to remove bulb.

3..
Remove switch from socket. Carefully detach wire

and terminal from switch.

NOTE:
On some model switches, the wire and

terminal cannot be detached from the switch

making it necessary to cut and splice the switch

wire.

4.
Insert wire and terminal into new switch.

5. Push switch into place and install bulb by setting it in

place, depressing and turning it clockwise.

CIGARETTE LIGHTER REPLACEMENT

Chevrolet, Chevy II, Camaro and Corvette (Fig. 23)

1.
Disconnect battery ground cable.

2.
Disconnect wire connector at rear of lighter unit

under dash.

3.
Remove retainer from rear of housing assembly and

disengage lighter unit from panel.

4.
To install, reverse removal procedure.

Chevelle (Fig. 35)

1.
Disconnect battery ground cable.

CHEVROLET CHASSIS SERVICE MANUAL

17-

VIEW A

Fig.
53 - Instrument Panel Wiring Harness

1.
To Glove Box Light

2.
To Heater Control

3. Heater Control Lamp

4. To Cigarette Lighter
5. To Ignition Switch

6. To Instrument Cluster

7. To Wiper Switch

8. To Light Switch

9.
To Directional Signal Switch
10.
To Stop Lamp Switch

11.
To Backing Lamp Switch

12.
Fuse Panel

13.
To Dimmer Switch
14.
To Fisher Body Connector

15.
To Directional Signal Flasher

16.
To Heater Resistor

17.
Directional Signal Flasher

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

ELECTRICAL-BODY AND CHASSIS 12-57

15.
Connect positive lead to battery terminal, lower hood

and test wiper and washer assembly for proper

operation.

WIPER TRANSMISSION

REMOVAL AND INSTALLATION

1.
Remove wiper block and arm assembly from trans-

mission.

2.
Remove glove box door and compartment assembly.

Refer to Section 1 for removal procedures.

3.
Remove three transmission-td-cowl retaining

screws.

4.
Remove wiper transmission retaining clip and re-

move transmission from crank arm. Then remove

transmission through the glove box opening.

5.
Reverse removal procedure to install wiper trans-

mission.

Fig.
94 - Wiper and Trans Installed

WIPER ASSEMBLY REPAIRS

The overhaul procedures for the wiper are broken down

into three major areas: The motor section, gear box

section and washer pump section. Each section may be

serviced independently of the other.

MOTOR SECTION

Disassembly

1.
Remove the two motor tie bolts.

2.
Remove the armature end-play adjusting screw (fig.

91).

3.
Strike the steel case lightly with a mallet to partiaUy

loosen it from the die casting housing and motor

field.

4.
Insert a tool through the armature adjusting screw

opening and push against the end of the armature

shaft to back off the case. This will retain the ar-

mature commutator in position between the brushes

until ready to separate the armature from the case.

5.
To separate armature from case while still retaining

the brush springs and brushes in place fashion a

spring similar to that shown in Figure 95 and insert

behind the brush leads as shown.
Fig.
95 - Retaining Armature Brushes

6. Pull the armature out of the case and remove the felt

washer, thrust plate, and rubber thrust disc from the

case assembly bearing as required.

7.
The field windings are pressed into the gear housing

and further disassembly is not recommended; how-

ever, the field leads may be unsoldered from the

brush holders to remove the case.

8. Clean and inspect all parts.

Inspect both the field and armature for damage

due to overheating such as unsoldered electrical

connections.

Check that brush leads are firmly attached both

to the brushes and their connections at the brush

holders.

Check brushes for wear. If brushes are worn to

within 3/16" of brush lead, or pigtail, they should be

replaced.

Check contacts of circuit breaker shown at top of

Figure 95. Clean as required or file lightly to re-

move irregularities.

Inspect all leads from the brush and circuit

breaker plate for worn insulation or tjreaks.

If it was determined by inspection that brush re-

placement was required, proceed as follows:

a. Remove retainer installed during disassembly and

remove brush springs.

b.
Place a hot soldering iron against*brush lead con-

nection on brush holders, remove old bushes, and

nection on brush holders, remove old brushes,

and install new brushes.

c. To reinstall brushes in holders, compress spring

within holder and hold fully compressed with a

thin instrument inserted through the slot in the

brush holder. Then push brush into holder with

lead upward to project through slot in holder, hold

CHEVROLET CHASSIS SERVICE MANUAL

SPECIFICATIONS 25

BODY AND CHASSIS ELECTRICAL

SECTION
12

LAMP USAGE
CANDLE

POWER
BULB

NUMBER

Headlamp Unit

Chevrolet, Chevelle & Corvette

Outer - High Beam

Outer - Low Beam

Inner -• High Beam only

Chevy H

High Beam . .

Low Beam

Parking Lamp and Directional Signal

All Exc. Camaro

Camaro

Tail, Stop and Directional Signal (Exc. Bel Air)

Backing Lamp ••...,

Instrument Illumination Lamps

Chevrolet & Camaro ,

Chevelle and Chevy n

Corvette

Temperature Indicator

Chevrolet & Camaro

Chevelle and Chevy II .............

Oil Pressure Indicator

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

Chevelle and Chevy II

Generator Indicator

Chevrolet & Camaro .

Chevelle and Chevy n ,

Hi-Beam Indicator

Chevrolet & Camaro <

Chevelle and Chevy II

Corvette , . • . ,

Directional Indicator

Chevrolet & Camaro

Chevelle & Chevy II . .

Corvette . .

Cigarette Lighter Lamp

Corvette .

Ignition Lock Lamp

Chevrolet . . .

Corvette . . .

Heater or A/C Control Panel

Chevrolet, Chevelle, Chevy n & Camaro . . .

Corvette . . .

Glove Box Lamps

Chevrolet, Chevelle, Chevy n & Camaro . . .

Corvette . . . . .

Dome and Courtesy Lamps

Cartridge Type (AU)

Bayonet Type (Exc. Corvette) . . .

Corvette ,

Convertible . .
37 1/2 Watts

55 Watts

37 1/2 Watts

55 Watts

45 Watts

4-32

4-32

4-32

Special Fiber

1

2

3

2

3

12

6

6

6
Optic
4002

4002

4001

6012

1157

1034-A

1157

1156

194

1895
.

1816

194

1895

194

1895

194

1895

194

1895

1445

194

1895

1816

1445

Wiring

1445

1895

1893

1895

1893

211

89,
212

90

631

CHEVROLET CHASSIS SERVICE MANUAL