1967 CHEVROLET CAMARO service

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

ELECTRICAL-BODY AND CHASSIS 12-41

HAZARD WARNING

SWITCHES

Fig.
55- Directional Signal Switches

erating six to eight lamps simultaneously depending ve-

hicle series and model.

DIRECTIONAL SIGNAL SWITCH REPLACEMENT

All steering columns except tilt and telescoping.

Chevrolet, Chevelle, Chevy II and Camaro (Fig. 56)

1.
Disconnect battery ground cable.

2.
Disconnect signal switch wiring from chassis har-

ness at multiple connector under instrument panel.

3.
Remove steering wheel assembly as outlined in Sec-

tion 9, Steering.

4.
Remove shift lever roll pin and shift lever from

column (if applicable).

5. Push in hazard warning switch knob and unscrew

knob.
Remove switch lever arm.

6. On Chevy U and Camaro models equipped with auto-

matic transmission remove column mounted dial in-

dicator housing and lamp assembly (if applicable).

7. Remove mast jacket lower trim cover retaining

screws and remove trim cover(s).

8. On Chevrolet and Chevelle models equipped with

automatic transmission loosen set screw and remove

quadrant dial pointer (if applicable).

9. Remove retaining
"C"
ring from upper steering shaft

using snap ring remover Tool J-22569 (Refer to

Steering, Section 9). Slide thrust and wave washers

from steering shaft.
10.
Loosen three signal switch mounting screws until

assembly can be rotated counterclockwise.

NOTE:
Do not remove three screws from as-

sembly until unit is on the bench.

11.
Rotate switch assembly counterclockwise and pull

unit from top of mast jacket. Allow unit to hang

from end of column.

Fig.
56 - Standard Steering Column

CHEVROLET CHASSIS SERVICE

ELECTRICAL-BODY AND CHASSIS 12-42

Fig.
57 - Tilt Steering Column

12.
Remove upper support bracket bolts and bracket

assembly.

CAUTION: Do not suspend column by lower

reinforcement only.

Reinforce column and remove wiring harness pro-

tector and clip, then position bracket and reinstall

bolts (finger tight).

13.
Remove shift lever bowl from mast jacket and dis-

engage from wiring harness.

14.
Remove three mounting screws from engagement

with lockplate. Use care not to lose 3 springs as

screws are removed.

15.
Disassemble switch and upper bearing housing from

switch cover.

NOTE:
Directional switch is not repairable

and must be replaced.

16.
Insert the upper bearing housing assembly and signal
switch assembly into, the cover, feeding the signal

switch wires through the. cover.

17.
Align signal switch and bearing housing holes with

holes in the cover. Install three mounting screws

through the holes.

18.
Slide three springs on to screws and place lockplate

in position over screws and springs. Tighten screws

three turns into lockplate.

19.
Feed switch wire through the shift lever bowl and

place upper end assembly on top of bowl.

20.
Place shift lever bowl and signal switch assembly

on top of jacket, aligning the tangs on the I.D. of the

lockplate with slots in jacket. Lock upper end of

assembly into position by pushing down on cover

assembly and rotating fully clockwise.

21.
Tighten 3 turn signal mounting screws.

22.
Remove mast jacket support clamp, position wiring

and install wiring cover and clip, then reinstall mast

jacket mounting bracket assembly.

Fig.
58 - Telescoping Column

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-43

23.
Install
MCtT
ring over steering shaft using snap ring

installer J-22659 (refer to Section 9).

NOTE: Be sure retaining ring is completely

seated into groove.

24.
Install dial pointer on Chevrolet and Chevelle models

equipped with automatic transmission (if applicable).

25.
Install dial indicator and lamp assembly on Camaro

and Chevy n models equipped with automatic

transmission.

26.
Install mast jacket lower trim covers (if applicable).

27.
Install hazard warning knob and turn signal lever.

28.
Install shift lever.

29.
Install steering wheel.

30.
Install multiple connector to switch wiring using old

harness for wire color guide and connect to body

harness connector.

31.
Connect battery ground cable and check operation of

assembly.

Tilt Steering Column (Fig. 57)

Chevrolet, Chevelle and Camaro

1.
Disconnect battery ground cable.

2.
Disconnect directional switch wiring harness from

body harness at multiple connector under instrument

panel.

3.
Remove steering wheel assembly (refer to Steering,

Section 9).

4.
Remove preload spring and cancelling cam from end

of shaft.

5.
Remove shift lever pin and lever from steering col-

umn (except floor shift).

6. Remove directional le*ver screw and lever.

7.
Push in hazard warning knob and unscrew knob.

8. On Camaro models equipped with automatic trans-

mission, remove quadrant dial and lamp assembly

from column.

9. Remove mast jacket trim cover
(s).

10.
On Chevrolet and Chevelle models with automatic

transmission, loosen set screw and remove quadrant

dial pointer.

11.
Assemble slide hammer Tool J-6585-1 to turn signal

cover remover Tool J-21486. Place cover remover

over turn signal cover, tighten clamp, and pull cover

from end of column with slide hammer (Refer to

Steering, Section 9).

12.
Remove three switch mounting screws, noting short

length of top screw.

13.
Cut multiple connector from switch wiring and slide

switch from end of column.

14.
To install new switch, feed wiring through the bear-

ing housing, around support, and through shift bowl

and shroud.

15.
Feed through wiring protector. If clearance is not

sufficient loosen mast jacket bracket retaining bolts.

16.
Insert switch wiring terminals in multiple connector.

Use old connector
and
wiring for color guide.
17.
Position switch and install three mounting screws

with short screw in top position.

18.
Be sure hazard warning switch is pushed in, then

install turn signal cover using special Tool J-21853.

On automatic columns align key in cover with keyway

in bearing housing.

19.
Install turn signal lever, hazard warning knob and

tilt lever.

20.
Install shift lever and roll pin (where applicable).

21.
Install dial pointer on Chevrolet and Chevelle. On

Camaro install dial indicator and lamp assembly.

22.
Install trim covers and retaining screws.

23.
Install cancelling cam and preload spring.

24.
Install steering wheel (Refer to Section 9).

25.
Connect switch wiring to body harness under instru-

ment panel.

26.
Connect battery ground cable and check operation of

unit.

Standard and Telescoping Steering Column

Corvette (Fig. 58)

1.
Disconnect battery ground cable.

2.
Disconnect signal switch harness wiring from chas-

sis wiring harness at multiple connector under in-

strument panel.

3.
Remove steering wheel assembly as outlined in

Steering, Section 9.

4.
Remove preload spring and cancelling cam.

5.
Remove directional signal lever screw and lever.

6. Push in hazard warning knob, unscrew and remove

knob.

7.
Remove lower trim cover retaining screws and

cover.

8. Remove retaining ring, thrust and wave washers

from upper end of shaft.

9. Cut wiring above connector.

10.
Remove three switch mounting screws, slide switch,

cover and upper bearing housing from column, pull-

ing wire through protector and escutcheon.

11.
To install replacement switch, assemble upper bear-

ing housing and turn signal switch into switch cover,

then feed wiring through escutcheon and protector

until switch can be positioned on mast jacket.

12.
With switch positioned on mast jacket, install three

switch mounting screws.

13.
Install thrust and wave washers and snap lock ring

in place.

14.
Install turn signal lever and hazard warning knob.

15.
Install cancelling cam and upper bearing preload

spring on steering shaft.

16.
Install steering wheel assembly.

NOTE:
Be sure directional signal switch is in

neutral position before installing wheel.

17.
Install connector on directional signal wiring har-

ness and connect to body harness connector.

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 12-45

Fig.
61 - Wiper Motor and Linkage — Chevelle

to cowl (one side), remove transmission from under

dash.

4.
To install new transmission, reverse above

procedure.

NOTE:
Check and replace gasket if necessary.

Use waterproof cement to seal screw holes.

WIPER MOTOR ASSEMBLY

REMOVAL AND INSTALLATION

Chevrolet and Comoro (Fig. 59 and 60) .

1.
Make certain motor is in park position.

2.
Disconnect washer hoses and electrical connectors

from assembly.

3.
On Chevrolet models, remove plenum chamber side

cover and loosen huts retaining drive rod ball stud

to crank arm.

4.
Remove three motor retaining bolts and motor. On

Camaro models, pull wiper motor assembly from
Fig.
63 - Wiper Motor Removal — Chevy II

cowl opening and loosen nuts retaining drive rod ball

stud to crank arm.

5. Check sealing gaskets at motor and retaining bolts,

replace as necessary.

6. Position motor assembly to cowl and install retain-

ing bolts. On Camaro models, attach crank arm to

transmission rod.

CAUTION: Motor assembly must be in the

park position prior to installation to cowl. Do

Fig.
62 - Wiper Transmission Removal --. Chevy II
Fig.
64 - Non-Depressed Park Wiper

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-47

1

1

Fig.
66 - Washer Pump - Attach Screws

WIPER MOTOR ASSEMBLY

DISASSEMBLY

Gear Box (Fig. 65}

1.
For wipers equipped with a washer pump, remove

the two washer pump mounting screws (fig. 66) and

lift pump off washer.

2.
Remove washer pump drive cam as required (fig.

67).
The cam is pressed on the shaft but can be

4-LOBE CAM

WASHER PUMP DRIVE

(PRESS FIT)
BRUSH HOLDER

REMOVE BRUSH SPRING FROM SLOT

AND PUCE IT IN GROOVE ASSHOWN

Fig.
68 - Releasing Brush Spring Tension

wedged off by using two screw drivers between cam

and plate.

3.
Clamp crank arm in a vise and remove crank arm

retaining nut.

CAUTION: Failure to clamp crank arm may

result in stripping of wiper gears*.

4.
Remove crank arm, seal cap, Tru-Arc retaining

ring, and end-play washers.

NOTE:
Seal cap should be cleaned and re-

packed with a water-proof type grease before

reassembly.

5. Drill out gear box cover retaining rivets, remove

cover from gear train.

Fig.
67 - Washer Pump Drive Cam
Fig.
69- End Play Wave Washer Installation

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