1967 CHEVROLET CAMARO service

BUMPERS 14-3

required to position the bumper at the correct

mounted height. ,

3.
Tighten all mounting bolts securely and connect li-
cense plate lamp wiring. On Caprice models, con-

nect back-up lamp wiring. Lower vehicle.

GENERAL DESCRIPTION-CHEVELLE

The new front bumper is of a one piece design with the

parking and turn signal lamp assemblies attached to each

outboard end of the bumper.
The rear bumper is also of a one piece design with

provisions for rear gas fill. The back-up lamp assem-

blies are attached near the center of the bumper.

SERVICE OPERATIONS

FRONT BUMPER ASSEMBLY

Removal

1.
Raise and support front of vehicle.

2.
Disconnect parking lamp wiring. -

Fig.
3 - Front Bumper Assembly - Chevelle

Disassembly

1.
Remove bolts attaching braces and brackets to

bumper.

2.
Remove bolts from each parking lamp assembly and

remove parking lamps from bumper.

Assembly

Attach both parking brake lamp assemblies to front

bumper and tighten bolts firmly. Assemble the front

bumper parts by following the disassembly procedure in

reverse order. Except for the parking lamp attachments,

install all bolts loosely; do not tighten any bolts until all

bolts are installed.

Installation

1.
Position the front bumper on the frame horns align-

ing holes in brackets and braces with those in the

frame.

2.
Loosely install bolts, lock washers, and nuts. Note

that eight sided adjustment washer (fig. 3) is placed

in the tab of each mounting bracket. Dial tjie adjust- .

ment washers in the tabs as required to position the

bumper at the correct mounted height.

3.
Tighten all mounting bolts securely, connect the

parking lamp wiring, and lower front of vehicle.
3.
Remove bolts retaining the bumper brackets and

braces to the frame.

4.
Remove bumper assembly from vehicle.

ADJUSTMENT

WASHER

Fig.
4-Rear Bumper Assembly - Chevelle

REAR BUMPER ASSEMBLY (Fig. 4)

Removal

1.
Raise rear end of vehicle.

2.
Disconnect rear license plate lamp and back-up lamp

wiring.

3.
Remove bolts, located behind license plate door, at-

taching face bar reinforcement to frame.

4.
Remove four bolts retaining bumper brackets and

braces to frame.

5. Remove bumper from vehicle.

Disassembly

1.
Remove license plate lamp and back-up lamps from

bumper.

2.
Remove brackets and braces at each end of bumper.

3.
Remove license plate door.

4.
Remove rivets attaching bracket at center of bumper.

Assembly

Attach license plate lamp and back-up lamp assemblies

to bumper; tighten bolts firmly. Assemble the bumper

parts by following the disassembly procedure in the re-

verse order. Except for the license plate lamp and back-

up lamp attachments, install all bolts loosely; do riot

CHEVROLET CHASSIS SERVICE MANUAL

BUMPERS 14-4

tighten any bolts until all bolts have been installed.

Installation

1.
Position bumper bracket and brace on the frame

aligning holes in frame with those in bracket and

brace.

2.
Loosely install bolts, lock washers and nuts. Note
that eight sided adjustment washers (fig. 4) are

placed at the inside surface of each rear frame

channel. Dial washers as required to position

bumper at correct height.

Tighten all mounting bolts securely, connect back-up

lamp and license plate lamp wiring, and lower rear

of vehicle.

GENERAL DESCRIPTION-CHEVY II

The front and rear bumpers are of a one piece design

with the parking and turn signal assemblies attached to

each outboard end of the front bumper.

SERVICE OPERATIONS

FRONT BUMPER ASSEMBLY (Fig. 5)

Removal

1.
Raise front end of vehicle.

2.
Disconnect parking lamp wiring.

3.
Remove bolts retaining bumper brackets and braces

to frame.

4.
Remove bumper assembly from vehicle.

Disassembly

1.
Remove bolts securing parking lamp assemblies and

remove parking lamps from vehicle.

2.
Remove bolts attaching braces and bumper brackets

to bumper face bar.

Assembly

Referring to Figure 5, assemble brackets and braces

and install parking lamps to face bar. Install all bolts

loosely—do not tighten any bolts until all bolts have been

installed.

Installation

1.
Position assembled bumper on frame extensions,

aligning holes in extension with holes in brackets and

braces.

2.
Install bolts, lock washers, and nuts; tighten

securely.
3.
Connect parking lamp wiring and lower front end of

vehicle.

REAR BUMPER ASSEMBLY (Fig. 6)

Removal

1.
Disconnect license plate lamp wire at connector.

2.
Raise vehicle from floor. From forward side and

underside of rear crossmember, remove mounting

bolts retaining the bumper brackets to the vehicle.

3.
Remove bumper assembly from vehicle.

Disassembly

1.
Remove license plate lamp.

2.
Remove, bolts attaching each bracket to bumper.

Check condition of seal; replace if necessary.

Assembly

1.
Position brackets on face bar as shown in Figure 6

and install mounting bolts; tighten nuts securely.

2.
Install license plate lamp.

Instalfation

1.
Position bumper assembly on vehicle, aligning tapped

holes in bracket with- slotted holes in rearward face

of rear crossmember and install bolts loosely.

2.
Align slotted hole in bracket with tapped hole in

lower flange of rear crossmember and install bolt

loosely.

3.
Adjust entire bumper assembly so that the distance

Fig.
5 - Front Bumper Assembly - Chevy
Fig.
6 - Rear Bumper Assembly - Chevy

CHEVROLET CHASSIS SERVICE MANUAL

BUMPERS
14-5

from rear fender side panel to the end flange of the

bumper is approximately 3/4" on Sedans and 7/8" on

station wagons; tighten all bolts. Lower vehicle.

If enclosed weld nuts are stripped or damaged, they

may be repaired by the following methods:

1.
Install spiral-type thread insert, following directions
furnished by manufacturer.

2.
Drill out nut and tap to next larger size.

3.
Hole saw through rear crossmember in area of nut.

Cut old nut from frame member and weld or braze

new one in place.

GENERAL DESCRIPTION-CORVETTE

The front and rear Corvette bumpers are of the two

piece wrap around type. The front bumpers are con-

nected by a center face bar.

SERVICE OPERATIONS

FRONT BUMPER (Fig. 7)

Figure 7 shows assembly of bumper and installation on

vehicle. Removal and installation procedures cover the

right hand bumper assembly only, the left hand side is

identical. If the bumper is to be removed as an assem-
bly, leave center face bar attached and perform proce-

dure on both sides.

Removal

1.
Remove bolts retaining bumper assembly to inner

brace.

Fig.
7 - Front Bumper - Corvette

CHEVROLET
SERVICE

BUMPERS 14-6

Fig.
8 - Rear Bumper - Corvette

2.
Remove bolt retaining bumper assembly to outer

brace.

3.
Remove bolt retaining bumper assembly to center

brace.

4.
Remove bolts retaining bumper to center face bar.

5. Remove outer brace, center brace and inner brace.

Installation

Position bumper assembly and align all holes in mating

parts with drift punch. Insert all bolts and install nuts

and washers. Do not tighten any bolts or nuts until all

bolts are inserted and bumper assembly is adjusted to

correct installed position on vehicle.

REAR BUMPER (Fig. 8)

Figure 8 shows exploded view of bumper and its instal-

lation on vehicle. The following procedure covers left

hand bumper assembly only; the right hand side is

identical.
Removal

1.
Remove bolt retaining bumper assembly to fender

(extreme outer end).

2.
Remove bolt retaining bumper to outer brace.

3.
Remove bolt retaining bumper to inner upper brace.

4.
Remove bolt retaining. bumper to inner lower brace.

5. Remove bolts retaining bumper to center brace.

6. Outer brace, center brace, inner upper and inner

lower braces-may be removed at this time. Note and

record shimming of upper brace.

Installation

Position bumper assembly and align mating parts with

drift punch. Insert all bolts and install nuts and washers.

Do not tighten any bolts or nuts until all bolts are in-

serted and bumper assembly is in correct installed posi-

tion on vehicle. Note that if inner upper brace shimming

has been lost or disturbed, bumper should
be.
installed on

all other supports and aligned to correct position on ve-

hicle.
-
Inner upper brace should then be bolted to bumper

CHEVROLET CHASSIS SERVICE MANUAL

BUMPERS 14-7

only and the distance between inner upper brace and

frame filled in with shims. Bolts may then be installed

to secure brace to frame.

REAR LICENSE PLATE HOUSING

The rear license plate housing may be removed from

the vehicle by removing the license plate and removing

the retaining screws as shown in Figure 9.

Fig.
9- Rear License Plate Housing

GENERAL DESCRIPTION-CAMARO

The Camaro front and rear bumpers are of a single

piece wrap around design. The front license plate bracket

functions as a bumper support between the valance panel
and bumper. Holes in the underside of bumpers, slightly

inboard of lower bumper bracket bolt, provide for new

jack load rest stud for jacking purposes.

SERVICE OPERATIONS

FRONT BUMPER ASSEMBLY (Fig. 10)

Removal

1.
Raise and support front end of vehicle.

2.
Remove bolts securing bumper support brackets to

frame.

3.
Remove bolts, one on each side at fender extension

panels, securing bumper to outer bumper bracket.

4.
Remove screws and nuts securing license plate

bracket to valance panel and remove bumper from

vehicle.

Disassembly

1.
Remove bolts attaching two support brackets to

bumper.

2.
Remove screw and nut securing license plate bracket

to bumper.

Assembly

Assemble the front bumper following the disassembly

procedure in reverse order. Install all bolts loosely; do

not tighten any bolts until all bolts are installed.

Installation

1.
Position assembled bumper on frame horns aligning

holes in bumper brackets with those in frame.

2.
Loosely install bolts, lock washers, and nuts. .Note
3.
the eight sided adjustment washers (fig. 10) are

placed in the tab of each bumper bracket. Dial the

adjustment washers in the tabs as required to posi-

tion the bumper at the correct mounted height.

Tighten all bolts securely and lower vehicle.

REAR BUMPER ASSEMBLY (Fig. 11)

Removal

1.
Raise and support rear end of vehicle.

2.
Remove bolts securing bumper brackets to frame

and rear fenders.

3.
Remove screws securing license plate bracket to

body and remove bumper from vehicle.

Disassembly

1.
Remove bolts securing four support brackets to

bumper.

2.
Remove rivets securing license plate bracket to

bumper.

Assembly

Assemble the rear bumper following the disassembly

procedure in reverse order. Install all bolts loosely; do

not tighten any bolts until all bolts are installed.

CHEVROLET CHASSIS SERVICE MANUAL

BUMPERS 14-8

Ifistaliotion

1.
Position assembled bumper on frame and body align-

ing holes in bumper brackets with those in frame.
2.
Loosely install all bolts, lock washers and nuts. In-

sure bumper is in correct mounted position.

3.
Tighten all bolts securely and lower vehicle.

Fig.
10 - Front Bumper Assembly - Camaro

Fig.
11 - Rear Bumper Assembly - Camaro

CHEVROLET CHASSIS SERVICE MANUAL

SECTION 15

ACCESSORIES

CONTENTS OF THIS SECTION

Page

Cruise Master . . . . .......... 15-1

Automatic Level Control 15-12

CRUISE-MASTER

INDEX

Page

General Description . 15-2

System and Component Operation 15-2

Service Operations . . ...... 15-7

System Checks 15-10

REGULATOR TO

INTAKE MANIFOLD HOSE

SERVO All

BLEED HOSE
VACUUM RELEASE

SWITCH HOSE

THROTTLE

CHAIN

CABLE TO

SPEEDOMETER

ENGAGEMENT

BUTTON

RIC RELEASE

SWITCH

VACUUM RELEASE

SWITCH

SPEEDOMETER CABLE

MOUNTING

BRACKET

WIRING HARNESS FROM ENGAGEMENT

BUTTON & CUTOFF SWITCH
SERVO VACUUM

SUPPLY

Fig.
1 - Cruise Master System

CHEVROLET CHASSIS SERVICE MANUAL

ACCESSORIES 15-2

GENERAL DESCRIPTION

The Cruise Master is a speed control system which

employs engine manifold vacuum to power the throttle

Servo unit. The Servo moves the throttle when speed

adjustment is necessary by receiving a varying amount

of bleed air from the Regulator unit. The Regulator

varies the amount of bleed air through a valve system

which is linked to a speedometer-like mechanism. The

speedometer cable from the transmission drives the

Regulator, and a cable from the Regulator drives the

instrument panel speedometer. The. engagement of the
Regulator unit is controlled by an Engagement Switch

located at the end of the turn signal lever. Two brake

release switches are provided: an Electric Switch dis-

engages the Regulator unit and a Vacuum Switch de-

creases the vacuum in the Servo unit to quickly return

the throttle to idle position.

The operation of each unit of the system and the

operation of the entire system under various circum-

stances is described below. Figure 1 shows the location

of the system components within the vehicle-

COMPONENT OPERATION

ENGAGEMENT SWITCH

This switch, located within the turn signal knob, has

three positions. In the fully released position, the switch

passes current through resistance wire to effect a "hold

in" magnetic field in the Regulator solenoid. This cur-

rent is sufficient only to hold the solenoid in place once

it has been actuated by the "pull in" circuit. Depressing

the button partially allows current to flow to the Regu-

lator solenoid at full voltage which causes the solenoid

to pull in. Depressing the button fully opens the circuit

to both the resistance and standard solenoid feed wires

and the solenoid becomes de-activated.

During vehicle operation the three switch positions

have the following functions:

Released

a. System not engaged: No function of the system

will occur although a small current is flowing

through the solenoid via the resistance wire (at

vehicle speeds over 20 mph).

b.
System engaged: The small current flowing

through the resistance wire is holding the solenoid

in the engaged position.

^r-WIRE RELIEF LUG

1 ^-#2-BLUE WIRE

L'3.BLACK WIRE
X /-TURN SIGNAL LEVER

SWITCH—^
^SN

RETAINING RING-^ %^

BUTTON -^

Fig.
2 - Cruise Master Engagement Switch
Partially Depressed

Full voltage is applied to the solenoid (vehicle speed

over 20 mph) which sets the Regulator to maintain the

vehicle speed at the time of Regulator engagement.

Fully Depressed

No electricity flows to the solenoid and the Regulator

is inactive. This position is used by the driver when he

desires to raise or lower his controlled speed. He may

accelerate to his new speed, press the button fully (Regu-

lator releases previously set speed) and release the but-

ton. Upon releasing the button, it passes through the

partially depressed position and the solenoid is "pulled

in", then into released position which provides "hold in"-

current. The driver may also press the button fully with

no pressure on the accelerator pedal. In this case the

regulator releases control of the throttle which returns

to idle and the car slows. When the button is released

the solenoid is pulled in and held in respectively and the

regulator resumes speed control at the speed of the

vehicle during the moment of button release (at vehicle

speeds over 20 mph).

LOCK
NUT

ORIFICE
TUBE

AND
CONNECTOR

ASSEMBLY

AIR FILTER AND

SOLENOID HOUSING COVER

Fig. 3 - Regulator Unit

CHEVROLET CHASSIS SERVICE MANUAL