GENERAL INFORMATION 0-4
Fig.
1—Vehicle
Serial Number
Located on Left Front Hinge
Pillar—Chevrolet Shown
Fig.
2—Vehicle Serial Number and
Body Style, Body Number Trim and
Paint Combination Located on
Instrument Panel Brace
Under Glove Box—Corvette
Fig. 3—Four and Six Cylinder
Engine Unit Number Located on
Pad at Right Hand Side of Cylinder
Block at Rear of Distributor
Fig.
4—Eight Cylinder Engine Unit
Number Located on Pad at Front,
Right Hand Side of Cylinder Block
Fig.
5—Rear Axle Unit Number
Located Bottom Surface of Carrier
at Cover Mounting Flange—Corvette
Fig.
6—Rear Axle Unit Number
Located on Right or Left Axle
Tube Adjacent to Carrier
BSHfi^;^
PAINT
HRIKI5"tM>
fIHIsS
HE|St.>MfT*
^^ * *•'"
•<"'
Fig.
7—Body Style, Body Number
Trim Type and Paint Combination
Located on Upper Right Hand Side
of the Dash Panel—Chevrol et
Fig.
8—Body Style, Body Number
Trim Type and Paint Combination
Located on the Upper Left Hand
Side of the Dash Panel—Chevelle
and Camaro
Fig.
9—Body Style, Body Number
Trim Type and Paint Combination
Located on the Upper Right Hand
Part of the Dash Panel—Chevy II
1. Manufacturers identity number assigned to all
Chevrolet built vehicles.
2.
See Model Identification in this section.
3.
Last number of model year (1967).
4.
F-Flint
5.
Unit numbering will start at 100,001 at all plants.
KEYS AND LOCKS
Four keys (two hexagonal head and two round head) are
provided with each vehicle. The hexagonal-head key
operates the ignition switch and front door locks. The
round-head key operates the locks for the glove box and
rear compartment lid.
' Lock cylinders (except trunk) are furnished for service
uncoded, this necessitates the coding of these replace-
ment lock cylinders.
NOTE: In service, the trunk and glove box
lock cylinders are provided together with the
trunk lock cylinder coded and the glove box
cylinder uncoded.
The side bar type lock (fig. 18) is used for the ignition,
front doors and trunk. The glove box lock is of the wafer
CHEVROLET CHASSIS SERVICE MANUAL
GENERAL INFORMATION
0-6
Once the code number of the lock is obtained look up
this number in a key cutting book.
All side bar locks (except trunk) furnished to the field
by the Parts' Department are uncoded, that is, they are
furnished without tumblers, springs or spring retainers,
these parts are serviced separately. The tumblers come
in five different depths, indicated by numbers.
The side bar locks have six tumbler positions, and in
looking up the cutting code, the following may be used as
an example. After key code number is determined, either
from key or from number stamped on lock cylinder refer
to your code book and record the key cutting information
as follows:
Key of Lock
Code Number
0V11
Cutting or Tumbler
position from head
of lock
Key Cutting
Code Numerical
545431
123456
NOTE:
Key blanks used for ignition and door
locks are stamped with an "A" while rear com-
partment and glove box blanks are stamped with
a "B".
The number that is written above the cutting or tumbler
position indicates each different tumbler which is to be
dropped into each tumbier slot of the lock.
In cases where a code book is not available, the dia-
gram shown on Figure 19 may be used to determine the
tumblers required to assemble an uncoded lock cylinder.
1.
Lay the key on the diagram (fig. 19) with bottom of
key flush with edge of the drawing, head and point
carefully lined up.
2.
Read the code in numbers 12345 from the head of the
key to the end from positions 1 to 6 inclusive. As
each depth is determined write that number in the
blank space provided above the position numbers
(1-2-3-4-5-6).
3.
With key properly lined up on diagram, all cuts that
show in the first section are marked
"1"
J
4.
Cuts that fall in the first black section, mark "2".
5. Cuts that fall in the first white section, mark "3".
6. Cuts that fall in second black section, mark "4".
7. Cuts that fall in the second white section, mark "5".
After the numbers have been determined and written
above the cutting positions the lock cylinder should be
assembled as follows.
Lock Cylinder Assembly—Refer to Figure 20
1.
Hold cylinder with head of cylinder away and starting
•... at the head of the cylinder, insert the tumblers in
their proper slots in the order called for by the
code, ribbed side toward you and long point down.
2.
After all tumblers are in place, check for correct-
ness with the code. Then press tumblers down with
one finger.
3.
Insert one tumbler spring in the space provided
above each tumbler.
CAUTION: If the springs are tangled, do not
pull them apart—unscrew them.
4.
Reverse the lock cylinder so that the head of the
cylinder is now toward you. Insert the spring re-
tainer so that one of its six prongs enters into each
of the springs and the two large end prongs slide into
the slots at either end of the cylinder. Press the
retainer down with one finger.
5. To check, insert proper key and if tumblers are in-
stalled properly the side bar will be allowed to drop
down. If bar does not drop down, remove the key,
spring retainer, springs and tumblers and reas-
semble correctly.
NOTE:
If the tumblers have not been assembled
correctly and not according to the code, the
tumblers can be removed from the cylinder by
holding it with the tumbler slots down, pulling
the side bar out with the fingers and jarring the
cylinder to shake the tumblers out. This pro-
cedure is necessary because after the tumblers
have been pressed down into the cylinder they
are held in their slots by the cross bar.
6. If after checking it is found that the lock is as-
sembled properly, remove key and place cylinder in
INSERTING
TUMBLER
CHECKING
WITH CODE
STAKING
POINTS
NSERTING
TUMBLER SPRINGS
INSERTING
SPRING RETAINER
Fig.
19—Tumbler Requirement Diagram
Fig.
20—Assembling Lock Cylinder
CHEVROLET CHASSIS SERVICE MANUAL
FRONT SUSPENSION 3-7
CAMARO
CHEVROLET
AND
CORVETTE
LOWER
CONTROL
ARM
CHEVELLE
CHEVY
II
Fig.
9- Checking Riding Height
not the vehicle riding height is correct.
1.
Place the vehicle on a smooth, level floor and bounce
and rock the front end several times. Raise vehicle,
then allow it to settle to a normal height.
2.
Measure the following two distances (fig. 9):
a. From the floor to the center of the inner pivot of
the lower control arm. (On the Chevrolet and
Camaro, this measurement must be made at the
rear end of the pivot.)
b.
Chevrolet--Measure the distance from the floor
to the lower face of the lower steering knuckle
boss for the spherical joint on the same side of
the vehicle.
Chevelle—From the floor to the outer pivot
which is located 1/8" (.12) inboard from the ball
stud boss at the lower surface of the arm.
Chevy II--Measure the distance from the floor
to the lower ball joint seat.
Corvette—Measure the distance from the floor
to the lower face of the lower steering knuckle
boss for the spherical joint on the same side of
the vehicle.
Camaro—From the floor to the lower inboard
edge of ball seat.
3.
The difference between these two measurements
should be as outlined in the Specifications given at
the end of the book with the vehicle at curb weight
(full tank of gas, spare tire and jack in trunk, no
passengers).
4.
Measure the opposite side of the vehicle in the same
manner. The measurements for both sides should
differ no more than 1/2".
5. To correct the height, springs must be replaced.
These springs do not have flat ends and shims should
not be used.
CHEVROLET CHASSIS SERVICE MANUAL
REAR SUSPENSION AND DRIVE LINE 4-5
Fig.
6—Measuring Rear Riding Height (Chevrolet and Chevelle)
RIDING HEIGHT CHECK
(Chevrolet, Chevelle Camaro and Chevy II)
In case of vehicle riding height complaints, a spring
height check will show if the rear suspension is at the
right height.
1.
Position car on smooth level floor.
2.
Vehicle must be at curb weight (full gas tank, no
passengers, spare and jack in trunk). Car should be
raised up a few times to allow suspension to settle
with car weight to eliminate friction at arm pivots.
3.
On Chevrolet and Chevelle models, measure riding
Fig.
8—Measuring Rear Riding Height (Camaro)
height as the distance from the top of the axle hous-
ing to frame kick-up (fig. 6).
4.
On Chevy II models, measure riding height as the
distance from lower surface of bumper support
bracket to top of axle housing (fig. 7).
5.
On Camaro models measure riding height as the
distance from jounce bumper upper attaching bolt to
top of axle housing (fig. 8).
6. Riding heights vary between models* Refer to speci-
fications section for vehicle and model application.
WHEEL ALIGNMENT (CORVETTE)
Camber
Wheel camber angle is obtained by adjusting the eccen-
tric cam and bolt assembly located at the inboard mount-
ing of the strut rod (fig. 9). Place rear wheels on
alignment machine and determine camber angle. To
adjust, loosen cam bolt nut and rotate cam and bolt as-
sembly until specified camber is reached. Tighten nut
securely and torque to specifications.
Fig.
7—Rear Riding Height (Chevy II)
Fig.
9—Ad
justing
Rear Wheel Camber (Corvette)
CHEVROLET CHASSIS SERVICE MANUAL
FUEL TANK AND EXHAUST SYSTEMS 8-28
assembly is mounted on top of the tank and cannot be
removed for service without lowering the tank. The
upper filler neck assembly is routed through an opening
in the rear panel above the bumper and through the trunk
floor pan (fig. 33). The filler neck is not centered in the
rear panel but offset to the right to obtain the proper fill
rate.
The fuel pickup pipe is an integral part of the tank
meter unit^ located at the top front center of the tank. A
fine mesh screen is located at the bottom end of the fuel
pickup pipe to prevent the entrance of foreign material
into the fuel system.
Fig.
33—Filler Neck Assembly
COMPONENT PART REPLACEMENT
FUEL TANK
Draining Tank
Refer to Chevrolet page 8-2.
Removal and Installation
1.
Drain fuel tank. .'...' .
2.
Raise vehicle.
3.
Disconnect fuel pickup line, gauge wire and ground
lead from tank unit.
4.
Loosen filler neck inlet hose clamp.
5. Remove tank support strap bolts and straps, then
lower tank carefully.
6. Reverse procedure to install.
FUEL TANK GAUGE SENDING UNIT (Fig. 34)
Replacement
1.
Remove fuel tank.
2.
Remove cam lock using special Tool J-8950.
3.
Remove meter unit and rubber gasket.
CAUTION: Carefully remove unit so as not to
damage screen on end of pipe.
4.
Clean screen by blowing out with compressed air.
5. Reverse removal procedure to install.
FUEL LINES (Fig. 35)
The gasoline lines extending from fuel tank to fuel
pump,
are routed on the underside of the underbody, on
the right side, opposite the single exhaust system. The
lines extend from the fuel tank to the right side of the
engine to the fuel pump and over the front of the engine
to the carburetor.
Maintenance
CAUTION:
plete fuel
Always drain gasoline from corn-
including carburetor, fuel
pump and
fuel lines and fuel tank if the
vehicle is to be stored for any
eciable
length of time. This precaution will prevent
accumulation of gum formation and resultant
poor engine performance.
The fuel lines should occasionally be inspected for
leaks,
kinks, or dents. If evidence of dirt is found in the
carburetor or fuel pump disassembly, the lines should be
disconnected and blown out. Check the fuel tank strainer
for damage or omission. Fuel lines are of 5/16" diameter
tubing for regular installation with beaded-type ends for
connections to hoses and flared ends for secure line
connections.
CHEVROLET CHASSIS SERVICE 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 12-14
BACKING LAMPS
lamp Housing Replacement (Fig. 19)
Bumper Installation
1.
Remove two screws retaining housing assembly in
the bumper and remove housing.
'2.
Disconnect lamp wire assembly connector from wir-
ing harness.
3.
Remove lens retaining screws, lens and bulb from
housing assembly and transfer to new housing unit.
4.
Connect lamp wiring assembly to harness assembly,
housing and check operation of lamp.
•5.
Position lamp assembly in place and install retaining
screws.
Corvette (Fig. 18)
1.
Remove license plate and bracket assembly.
2.
Remove tailpipe extensions and rear body valance
panel.
3.
Remove backing lamp attaching nuts.
4.
Disengage backing lamp assembly from body opening
and disconnect wiring harness at rear of lamp.
5. Transfer bulb, gasket and lens to replacement
housing.
6. Connect chassis wiring connector to housing and po-
sition lamp assembly to body opening.
7. Attach ground wire to housing and install retaining
nuts to housing.
8. Install body valance panel.
9. Position license plate assembly to body and install
retaining screws.
LICENSE PLATE LAMP SERVICE
Lamp Housing
1.
Remove the lamp assembly retaining screws and re-
move lamp assembly from mounting location (rear
bumper center face bar most models). On Corvette
models remove rear valance panel.
2.
Disconnect lamp wiring from chassis harness con-
nector (inside trunk on some models).
3.
Force grommet and Wiring down through body open-
ing (where applicable) and remove assembly from
vehicle.
4.
To install replacement unit, insert grommet and wir-
ing through body opening where applicable and con-
nect wiring to chassis harness.
5. Position assembly and install retaining screws. On
Corvette models make sure ground wire is properly
installed.
6. Check operation of lamp assembly.
iuib Replacement
1.
Remove lens retaining screws and lens.
NOTE:
On Camaro models loosen housing re-
taining screws.
2.
Remove and replace bulb.
3.
Position lens and install retaining screws.
AUTOMATIC TRANSMISSION
QUADRANT LAMP REPLACEMENT
Chevrolet (Fig. 20)
1.
Remove four screws retaining lower mast jacket
cover to upper cover.
2.
Remove two screws retaining upper cover to instru-
ment console.
3.
Remove two screws securing shield to upper cover
assembly.
4.
Remove and replace bulb.
5. Position shield to upper cover assembly and install
retaining screws.
6.' Position upper cover assembly to instrument console
and install retaining screws.
7. Position lower cover and install four retaining
screws.
Chevy II and Camaro (Fig. 21)
1.
Remove two screws attaching retainer and dial to
directional signal housing; remove retainer and dial
face from housing.
2.
Remove cap and bulb.
3.
Replace bulb and cap, then position dial and retainer
to housing.and install attaching screws.
Fig.
20 - Dial Quadrant Lamp — Chevrolet
1.
Upper Cover
2.
Shield
3. Lamp and Socket
4.
Dial Pointer
5.
Lower Cover
CHEVROLET CHASSIS SERVICE MANUAL