windshield wipers CHEVROLET CAMARO 1967 1.G Chassis Workshop 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 12-44

WINDSHIELD WIPERS AND WASHERS

INDEX

Page

Wiper Transmission Assembly 12-44

Removal and Installation 12-44

Wiper Motor Assembly . 12-45

Removal and Installation . 12-45

Non-Depressed Park Wiper 12-46

Wiper Motor Assembly 12-47

Disassembly ....... 12-47

Inspection *...... 12-48

Assembly .. . .. . 12-48

Washer Pump Unit , 12-48

Removal and Installation 12-49

Disassembly and Assembly 12-49

Depressed Park 2-Speed Wiper - Chevrolet 12-49

Motor Section 12-51

WIPER TRANSMISSION ASSEMBLY

REMOVAL AND INSTALLATION (Fig. 59 and 60)

Chevrolet and Camaro

1.
Make certain motor is in park position, remove

wiper rod and blade assemblies from transmission

shaft.

2.
Remove plenum chamber ventilator grille.

3.
Loosen nuts retaining drive rod ball stud to crank

arm and detach drive rod from crank arm.

4.
Remove transmission retaining screws and lower

transmission and drive rod assemblies into plenum

chamber.

5. Remove transmission and linkage from plenum

chamber through cowl opening.

6. To install, reverse removal procedure.

Chevelle (Fig. 61)

1.
Make certain motor is in park position, remove

wiper arm and blade assemblies from transmission

shaft.
Gear Box Section . . 12-54

General Description. . . . , 12-56

Depressed Park 2-Speed Wiper - Corvette . 12-56

Service Operations

Wiper Trans-mission Assembly,

Removal and Installation . . ,

Wiper Motor Assembly ......

Motor Section .........

Gear Box Section

Washer Pump Section......

Pump Replacement ......
12-56

12-57

12-57

12-57

12-57

12-59

12-60

12-60

2.
Remove plenum chamber grille.

3.
Remove clip retaining transmission drive rod to

motor crank arm and detach drive rod from crank

arm.

4.
Remove transmission retaining screws, lower as-

sembly into plenum chamber, and remove unit from

chamber.

5. To install, reverse removal procedure.

Chevy II (Fig. 62)

1.
Make certain wiper motor is in park position, re-

move wiper arm and blade assembly from trans-

mission shaft.

2.
Remove special retainer clip securing transmission

linkage to wiper crank arm, remove linkage from

crank. Remove retainer clip securing left trans-

mission link to right transmission, remove link from

right transmission.

"
3. Remove two retaining screws securing transmission

Fig. 59 - Wiper and Motor Linkage—Chevrolet

Fig. 60 - Wiper and Motor Linkage—Camaro

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY
AND CHASSIS 12-48

NOTE:
Screws, nuts and lock washers for re-

assembling cover to wiper are contained in a

service repair package.

6. Remove output gear and shaft assembly, then slide

,
intermediate gear and pinion assembly off shaft.

7. If necessary, remove terminal board and park switch

assembly as follows:

a. Unsolder motor leads from terminals. Coding of

motor leads is not necessary on single-speed

wipers.

b.
Drill out rivets securing terminal board and park

switch ground strap to mounting plate.

NOTE:
Screws, nuts and washers for attaching

a replacement terminal board-park switch as-

sembly are included with the replacement

assembly.

Motor
(Fig. 65)

1.
Follow Steps 1 through 7b under gear box

disassembly.

2.
Remove, motor through bolts, tap motor frame

lightly, and remove motor from mounting plate.

3.
Remove brush spring tension (fig. 68), slide arma-

ture and end plate from motor frame. Pull end

plate from armature.

NOTE:
Thrust plug located between armature

shaft and end plate.

4.
Remove end play adjusting washers from armature,

noting arrangement for proper reinstallation.

INSPECTION

Check and inspect all parts for serviceability, replace

as necessary. All parts can be replaced individually

except motor frame and field, which is serviced as an

assembly. Service kits also provide screws, nuts and

washers to replace gear cpver and terminal board rivets.
ASSEMBLY

Refer to Figure 65 for exploded view of motor and gear

train.

Motor

Reassemble motor using reverse of disassembly

procedures.

NOTE:
Armature end play is controlled by end

play washers. See Figure 69 for proper assem-

bly of end play washers. Lubricate armature

shaft bushings with light machine oil.

Gear Box

1.
Assemble gear box using reverse of disassembly

procedure.

NOTE:
Lubricate gear teeth with Delco Cam

and Ball Bearing lubricant or equivalent. Be

sure cover is properly located over dowel pins

and be sure to reinstall ground strap.

2.
Place wiper in park position and install crank arm

on output shaft, rotate crank so alignment marks line

up with those on cover (fig. 70).

3.
Replace retaining nut, place crank arm in vise,

tighten retaining nut.

WINDSHIELD
WASHER PUMP

The windshield washer pump used on the 2-speed Type

"E"
wiper motor assembly is a positive displacement

type pump employing a small bellows, bellows spring and

valve arrangement. The pumping mechanism is actuated

by a four lobe cam and driven directly by the wiper motor

(fig. 71). Thus, when the wiper is operated, this rotor is

always turning with the gear. Programming is accom-

plished electrically and mechanically by a relay assembly

and ratchet wheel arrangement.

GEAR
CASE GROOVES

r— CRANK ARM GROOVES

WASHER PUMP
Ha

ACTUATOR
IB

•
^^HTS4LOBE

•MMBW
CAM

Fig.
70 - Wiper Crank Arm in Park Position
Fig.
71 - Wash Pump Drive Cam and Actuator

CHEVROLET
CHASSIS SERVICE MANUAL

SPECIFICATIONS 27

WINDSHIELD WIPERS

Non-Depressed Park Two
Speed

Operation

Test Voltage 12 V.

Crank Arm Rotation CCW

Current Draw

No Load 3.6 Max.

Dry W/S . . , .4.5 Max.

Stall . 12 Max.

Crank Arm

Speed (RPM's)

Low 34 Min.

Hi 65 Min.
Depressed Park—Chevrolet & Corvette Two Speed

Operating Voltage 12 VDC

Gear Ratio 3.36:1

Crank Arm Rotation (Looking at Crank Arm) Clockwise

Crank Arm Speed (No Load)

Lo.
34 RPH^/min.

Hi .65 RPM/min.

Current Draw (amperes)

No load (low speed) 3.6

Installed in Car (dry windshield) ......... 4.5

Stall . 12

Shunt Field Resistance (OHMS) 24

WASHER PUMP

Number of "squirts" at full pressure 12

Pressure (PSI) . 11-15

Coil Resistance (OHMS) . . 20

CHEVROLET CHASSIS SStVK* MANUAL