STEERING 9-29
column mounting bracket, and place bracket in cor-
rect position on underside of instrument panel.
Loosely install bracket using bracket to column
mounting screws and bracket to instrument panel
washers and bolts.
NOTE: Steering shaft to gear clamp must be
tightened before column attaching bolts are
torqued. Refer to "Steering Gear-Chevy n",
installation procedure, for correct Chevy II
steering column alignment procedure.
5.
Camaro only (fig. 60):
Lay wedge shim in position on instrument panel
column mounting bracket and place bracket in cor-
rect position on underside of instrument panel.
Loosely install bracket using bracket to column
mounting screws, nuts, and washer and bolt as shown
in Figure 60.
6. Corvette only (fig. 61):
Loosely secure column mounting bracket to sup-
port plate and instrument panel with washers and
bolts.
7.
Secure flanged end of column to steering coupling
with lockwashers and nuts. On Chevy n, connect col-
umn to steering gear with clamp, clamp bolt, and
nut. On Corvette, slide steering shaft flange into
lower coupling
half,
and install upper clamp bolt
loosely; also secure support, seal and clamp loosely
at dash on engine side.
8. Tighten instrument panel mounting bracket bolts and
nuts.
Refer to torque specifications at rear of manual
for correct torque values.
9. Chevrolet only (fig. 15):
Place upper and lower mast jacket covers in po-
sition and secure covers together and to instrument
panel using nuts and screws as shown in Figure 15.
10.
Chevy H only (fig. 18):
Place lower mast jacket cover in position under
mast jacket and secure to upper cover with screws.
11.
CheveUe only (fig. 15):
Place mast jacket trim cover in position over col-
Fig.
61—Instrument Panel Mounting Bracket and
Support Plqte—Corvette
umn on underside of instrument panel and secure
with screws.
12.
Corvette only (fig. 14):
Slide escutcheon into position at instrument panel
and secure with screws. Place upper end lower
covers in position and secure with screws.
13.
On Chevrolet and CheveUe models with column
mounted powerglide controls, secure transmission
shift indicator pointer into position with set screw
(fig. 15). ,
14.
Chevrolet only (fig. 19):
a. Secure seal and cover to dash panel with screws.
b.
Place clamp assembly in position and install
clamp screw.
c. Install dash panel trim cover with mounting
screws.
15.
Chevelle only (fig. 20):
a. Secure seal and inner and outer covers to dash
panel with screws.
b.
Secure inner and outer covers together with
screws.
c. Install trim cover to dash panel with two
retainers.
16.
Chevy H only (fig. 21):
a. Secure seal, retainer, and clamp to dash panel
with screws.
b.
Install clamp screw.
c. Slide collar into position. Pinch and staple upper
tabs together.
17.
Camaro only (fig. 22):
a. Secure seal, upper cover, and lower cover to
dash panel with screws.
b.
Secure upper and lower cover together with
screws.
c. Fold rubber boot over securely against dash panel
to conceal covers.
18.
Corvette only (fig. 23):
a. Secure seal and support assembly to dash panel
on engine compartment side.
b.
Tighten clamp, washer, and clamp bolt on engine
compartment side.
19.
Connect transmission linkage to lower shift tube
levers in engine compartment, if column is so
equipped. Adjust levers as outlined in Section 7.
20.
Install steering wheel as outlined in this section.
21.
Connect directional signal, horn, back-up lamp, and
neutral start switch at wiring harness plugs. Adjust
back-up lamp, neutral start switch as outlined in
Section 12.
22.
Adjust steering gear and align and center steering
wheel as outlined in this section.
STEERING LINKAGE (Fig. 62)
TIE RODS
There are two tie rod assemblies used on all models.
Each assembly is of three piece construction, consisting
of a sleeve and two tie rod ends. The ends are threaded
into the sleeve and locked with clamps. Right and left
hand threads are provided to facilitate toe-in adjustment
and steering gear centering.
The tie rod ends are self-adjusting for wear and re-
quire no attention in service other than periodic lubrica-
tion and occasional inspection to see that ball studs are
tight. Replacement of tie rod ends should be made when
CHEVROLET CHASSIS SERVICE MANUAL
STEERING 9-34
Fig.
64-Over Center Adjustment
transmission fluid "Type A" bearing the mark
"AQ-ATF" followed by a number and the suffix
letter "A".
ADJUSTMENTS
POWER STEERING GEAR
Chevrolet, Chevelle, and Camaro
The over-center adjustment (fig. 64) is the only power
steering gear adjustment which can be made on the car.
However, in order to make this adjustment, it is also
necessary to check the combined ball and thrust bearing
preload.
If the vehicle is equipped with a tilt column it will be
necessary to disconnect the steering coupling to obtain a
torque reading of the column. This torque should then be
subtracted from any reading taken on the gear.
1.
Disconnect the pitman arm from the relay rod.
2.
Loosen the pitman shaft adjusting screw loeknut and
thread the adjusting screw out to the limit of its
travel through the side cover. '. •
3.
Disconnect steering column harness at chassis wir-
ing connector plug.
4.
Remove horn button.
5.
Turn the steering wheel through its full travel, then
locate the wheel at its center of travel.
6. Gheck the combined ball and thrust bearing preload
with an inch-pound torque wrench on the steering
shaft nut by rotating through the center of travel
(approximately 1/4 turn in each direction). Note the
highest reading.
7.
Tighten the pitman shaft adjusting screw and check
torque at steering shaft nut until over center preload
and total steering gear preload falls within speci-
fications. Refer to torque specifications at rear of
manual for correct torque values.
8. Install horn button. Connect steering column harness
at wiring connector plug.
Chevy II and Corvette
The steering gear used with power steering is adjusted
in the same manner as the manual steering gear.
PUMP BELT TENSION
1.
Loosen nut on pivot bolt and pump brace adjusting
nut.
CAUTION: Do not move pump by prying against
reservoir or by pulling on filler neck.
2.
Move pump, with belt in place until belt is tensioned
to specifications as indicated by Tool J-7316 (Fig-.
65).
3.
Tighten pump brace adjusting nut. Then tighten pivot
bolt nut.
HYDRAULIC SYSTEM CHECKS
The following procedure outlines methods to identify
and isolate power steering hydraulic circuit difficulties.
This test is divided into two parts. Test number one
provides means of determining whether power steering
system hydraulic parts are actually faulty. If test number
one results in readings indicating faulty hydraulic opera-
tion, test number two will identify the faulty part. Be-
fore performing hydraulic circuit test, carefully check
belt tension and condition of driving pulley. Strand
tension of belt should be 125 lbs. on new belts and 75 lbs.
on old belts, as indicated by Tool J-7316 (Fig. 65).
Test Number One—Oil Circuit Open
Engine must be at normal operating temperature. In-
flate front, tires to correct pressure. All tests are made
with engine idling, so adjust engine idle speed to correct
specifications listed in Section 6 and proceed as follows:
a. With engine not running, disconnect flexible pres-
sure line from pump and install Tool J-5176 as
Fig.
65— Checking Belt Tension with Tool J-7316
CHEVROLET CHASSIS SERVICE MANUAL
CHASSIS SHEET METAL 11-4
FENDERS
Fenders are adjustable with shims at the cowl and
rocker panel. To add or remove shims, loosen bolts at
shim locations (fig. 7) and carefully apply force with pry
bar to provide clearance for shim removal or installa-
tion.
SHEET METAL ADJUSTMENTS
For proper operation of doors and hood, and for pre-
sentable appearance, adjust front sheet metal to the tol-
erances shown in Figures
4-
and 5.
COMPONENT PART REPLACEMENT
NOTE: When replacing sheet metal compo-
nents on Chevrolet or Chevelle, note position and
attachment of all seals and dust shielding and
replace as necessary.
BATTERY TRAY
Removal
1.
Disconnect battery cables.
2.
Remove screw retaining battery hold down clamp and
remove battery from vehicle.
3.
Remove screws retaining battery tray to fender skirt
and radiator support.
4.
On Chevrolet, remove headlamp bezel and remove
screw retaining tray to radiator support.
5.
Remove battery tray from vehicle.
Installation
Reverse removal procedure.
RADIATOR SUPPORT
Removal
1.
Remove front bumper (Section 14).
Fig.
3 - Hood Hinge - Chevrolet
2.
Remove grille and related components (Section 13).
3.
Remove battery tray as outlined above.
4.
Remove all electrical connections from radiator
support.
5.
Remove windshield washer bottle from bracket on
radiator support.
6. Remove shroud and radiator (Section 13).
7.
Remove screws and bolts securing support to skirts,
fenders, and frame horns (figs. 8 and 9).
8.. Spread fenders apart enough to allow support move-
ment and remove support from front of vehicle.
Installation
1.
Position the radiator support in vehicle", aligning
mounting screw and bolt holes with drift punch.
2.
install screws and bolts loosely until all are started.
3.
Replace all parts removed following removal proce-
dure in reverse order.
4.
Refer to torque specifications in rear of manual for
correct torque values.
•
5.
Aim headlamps as outlined in Section 12.
FENDER ASSEMBLY
Removal
1.
Remove hood with hinges from vehicle as outlined in
this section.
2.
On Chevrolet models, remove headlamp bezels and
headlamps; on Chevelle models, remove grille ex-
tension panels (fig. 1 or 2 as applicable).
3.
Disconnect wiring harness clips from fender to be
removed.
4.
If applicable, remove horn assembly from fender.
5.
If applicable, remove radio antenna.
6. Remove fender brace (fig. 1 or 2 as applicable).
7.
Remove screws retaining fender to radiator support,
skirt, cowl, filler panel, tie bar, and rocker panel.
Note number and location of shims removed from
locations shown in Figure 7.
8. Remove fender from vehicle.
Installation
Refer to disassembly procedure for location of screws
and install screws loosely. Install the shimmed screws
at rocker panel and cowl and adjust fender (figs. 4 and 5)
before tightening other screws. Always start adjustment
with original amount of shims, then add or remove shims
as required.
FENDER SKIRT
Removal
CAUTION: Chevelle air conditioned models
have condenser hoses routed through the right
front fender skirt. Cut skirt and bend as neces-
sary to move hoses clear of skirt. If necessary,
refer to Section 1A for air conditioning compo-
nents and procedures.
CHEVROLET CHASSIS SERVICE MANUAL
CHASSIS SHEET METAL 11-14
location is shimmed; thus keeping the fender mount-
ing bolts from crushing in the fender mounting
flange.
If shimming is done without the fenders being disas-
asembled, it is suggested that fender mounting bolts
rearward of radiator support be loosened while shims
are inserted and sheet metal fit is checked. Tighten
shimmed mounting bolts first, then all others.
COMPONENT PART REPLACEMENT
BATTERY TRAY (FIG. 21)
Removal
1.
Disconnect battery cables.
2.
Remove screw retaining battery hold down clamp.
3.
Remove battery from vehicle.
4.
Remove screws retaining tray assembly to fender
skirt and support, and remove tray from vehicle.
Installation
Reverse removal procedure.
RADIATOR SUPPORT (FIG. 22)
Removal
1.
Remove grille and related components (Section 13).
Remove battery tray as outlined in this section.
Remove shroud attaching screws and remove shroud
if vehicle is so equipped.
Remove horn relay, horns, voltage regulator, and
wiring harness from radiator support.
Remove shroud and radiator (Section 13)o
Remove screws attaching radiator support to frame,
skirts,
fenders.
Remove radiator support from vehicle (fig. 23).
Installation
1.
Position radiator support in vehicle; align mounting
screw and bolt holes with drift punch.
Install screws and bolts loosely until all are started,
then tighten.
3.
Complete installation following removal procedure in
reverse order. Refer to torque specifications at rear
of manual for correct torque values.
4.
Aim headlamps as outlined in Section 12.
FRONT FENDER ASSEMBLY
Removal
1*
Remove headlamp dooro
2.
Open hood and remove screws joining fender top
2.
Fig. 20 - Front Fender Shimming
Fig.
21 - Battery Tray
flange to skirt. Remove, and record number of
shims at first cap screw forward of windshield (fig.
24).
3.
Remove screw located on upper surface of headlamp
cavity.
4.
From under forward end of fender, remove screw
retaining fender to radiator support.
5.
From inboard side of rocker panel extension, remove
cap screw retaining fender to extension. Remove,
and record number of shims.
6. Separate headlamp filler panel from fender by re-
moving remaining screws.
7.
Remove fender from vehicle.
Installation
1.
Inspect condition of cowl-to-fender seal and replace,
if necessary, as shown in Figure 25.
2.
Install headlamp filler panel on fender.
3.
Position fender on vehicle. Note that eowl-to-fender
seal must be positioned so that outer edge points
toward front of vehicle. Align all mounting screw
and bolt holes with drift punch and install all screws
and bolts loosely. Do not tighten any screws or bolts
until all are started. Refer to removal rocedure
for screw and bolt locations.
4.
Replace shims taken out when fender was removed
from vehicle and continue as outlined under Main-
tenance and Adjustments—Fender Adjustment.
5.
Install headlamp door and cheek headlamp aiming
as outlined in Section 12.
CHEVROLET CHASSIS SERVICE MANUAL
CHASSIS SHEET METAL 11-20
GENERAL DESCRIPTION
The Camaro sheet metal components are much the
same as other Chevrolet passenger models as shown in
Figure 32. The front end design is such that servicing
of the fenders and skirts is most efficiently performed
by removing the fender and skirt as an assembly. Refer
to Section 14 for bumper service procedures, Section 13
for radiator and grille, and Section 1A for air condition-
ing components.
MAINTENANCE AND ADJUSTMENTS
HOOD ADJUSTMENT
The Camaro hood is adjusted in the conventional man-
ner, by adjustment of the hood bumpers and hinges. The
two hood bumpers are located on each side at the top of
the radiator support. Do not attempt hood latch adjust-
ments until the hinges and bumpers are correctly ad-
justed. Latch adjustments are made so that effort re-
quired to open and close the hood is reasonable, and
hood alignment obtained by hinge and bumper adjust-
ment is maintained when the hood is closed. Note that
the hood latch is not designed to correct basic hood mis-
alignment.
HOOD HINGE (Fig. 33)
NOTE: The body mounted portion of the hood
hinges are slotted to provide up and down move-
ment. The hood mounted end is slotted to pro-
vide forward and rearward movement.
1.
Scribe a. line around the entire. hinge plate to be
repositioned.
2.
Loosen the appropriate screws and shift the position
of the hood into correct alignment using the scribe
marks to check amount of movement. Check align-
ment by tightening screws and closing the hood.
HOOD BUMPERS
Adjust hood bumpers so that hood top surface is flush
with fender and header panel top surfaces. See Figure
34 for correct sheet metal adjustment dimensions.
HOOD CATCH AND LOCK (Fig. 35)
Adjust hood lock bolt so that top surface of hood is
flush with top surface'of header panel. The distance that
the lock bolt protrudes out of the lock plate should be
adjusted so that the hood bumpers are slightly com-
pressed by the fully latched hood, and effort required
to release the hood catch is reasonable. Close the hood
and insure catch engages securely.
FENDERS
Fenders are adjustable with shims at the cowl and
rocker panel. To add or remove shims, loosen bolts
Fig. 33 - Hood Hinge - Camaro
at shim locations (fig. 36) and carefully apply force with
pry bar to provide clearance for shim removal or in-
stallation.
SHEET METAL
For proper operation of doors and hood, and for pre-
sentable appearance, adjust front sheet metal to the di-
mensions shown in Figure 34.
COMPONENT PART REPLACEMENT
NOTE: When replacing sheet metal compo-
nents on Camaro, note position and attachment
of all seals and dust shielding and replace if
necessary.
BATTERY TRAY
Removal
1.
Disconnect battery cables and remove battery from
vehicle.
2.
Remove screws securing battery tray to fender skirt
and radiator support.
3.
Remove battery tray from vehicle.
Installation
Install battery tray following removal procedure in
reverse order.
RADIATOR SUPPORT
Removal
1.
Raise hood, disconnect battery cables, and remove
battery.
2.
Remove front bumper (Section 14).
3.
Remove grille and related components (Section 13).
4.
Disconnect horns, horn relay, voltage regulator,
CHEVROLET CHASSIS SERVICE MANUAL
ELECTRICAL-BODY AND CHASSIS 12-2
FJg.
1 - Fuse Panel Assembly
All power window and tailgate circuits require the igni-
tion switch to be "ON" to open or close the windows un-
like past model designs which were operated independ-
ently of the ignition switch.
The windshield wiper and washer switch is new in that
washer button in the center of the knob has been deleted
and its function will be accomplished by pushing the knob.
A set screw is used to retain the knob to the shaft.
In addition to fuses, the wiring harness incorporates
fusible links to protect the wiring. Links are used rather
than a fuse in wiring circuits that are not normally fused,
such as the ignition circuit. Fusible links in the Chevro-
let wiring are four gauge sizes smaller than the cable it
is designed to protect. The links are marked on the
insulation with wire gauge size because of the heavy insu-
lation which makes the link appear a heavier gauge than it
actually is.
Engine compartment wiring harness incorporate sev-
eral fusible links. Each link is identified with its gauge
size.
A fusible link is a length of special wire (normally
four wire gauges smaller than the circuit it is protecting)
used in wiring circuits that are not normally fused, such
as the ignition circuit. The same size wire with a spe-
cial hypalon insulation must be used when replacing a
fusible link.
The links are:
1.
The pigtail lead at the battery positive cable (except
Corvette) is a 14 gauge, brown fusible link protecting
the 10 gange battery charging circuit. This wire is
an integral part of the battery cable assembly and
servicing requires replacing the complete battery
cable assembly. On Corvette models this link is
installed as a molded splice at the solenoid "Bat"
terminal and servicing requires splicing in a new
link.
2.
A 16 gauge black fusible link is located at horn relay
to protect all unfused wiring of 12 gauge or larger.
It is a serviceable piece with an in-line connector
and is not integral with the wiring harness.
3.
The generator warning light and field circuitry (16
gauge wire) is protected by a fusible link (20 gauge
orange wire) used in the "battery feed to voltage
regulator #3 terminal" wire. The link is installed
as a molded splice in the generator and forward lamp
harness and is serviced by splicing in a new 20 gauge
wire as required.
4.
The ammeter circuit on all models is protected by
two orange, 20 gauge wire fusible links installed as
molded splices in the circuit at the junction block or
the solenoid "Bat" terminal (Corvette only) and at the
horn relay. Each link is serviced by splicing in a
new 20 gauge wire as required.
The wiring harnesses use a standarized. color code
common to all Chevrolet vehicles. Under the color code,
the color of the wire designates a particular circuit. The
harness title indicates the type of harness, single of mul-
tiple wire, and also describe the location of the harness.
The body harness is a flat, solid wire assembly and is
routed through the vehicle near the center of the body.
Composite wiring diagrams (figs. 104 thru 124) are in-
cluded at the end of this section.
MAINTENANCE AND ADJUSTMENTS
Maintenance of the lighting units and wiring system
consists of an occasional check to see that all wiring
connections are tight and clean, that the lighting units are
tightly mounted to provide good ground and that the head-
lamps are properly adjusted. Loose or corroded con-
nections may cause a discharged battery, difficult start-
ing, dim lights, and possible damage to generator and
regulator. Wire harnesses must be replaced if insulation
becomes burned, cracked, or deteriorated. Whenever it
is necessary to splice a wire or repair one that is bro-
ken, always use solder to bond the splice. Always use
rosin flux solder on electrical connections. Use insulat-
ing tape to cover all splices or bare wires.
When replacing wires, it is important that the correct
size be used. Never replace a wire with one of a smaller
size.
Each harness and wire must be held securely in place
by clips or other holding devices to prevent chafing or
CHEVROLET CHASSIS SERVICE MANUAL
ELECTRICAL-BODY AND CHASSIS 12-68
-7«3« R.H. DR. JAMB.SW.
C_18W-^{|>R.H. COURT
es RADIO CONN.
c5£ siHp INST. PANEL
COMPT. LAMP
ALL EXCEPT
(13100-400)
HEATER
CONTROL
HTR. CONTROL
LAMP
IGNITION SW.
LGT.
R. TURN IND.
INST.'CL. LP.
HEATER
RESISTOR
18 OR
20 Y
12 PPL/W
12 R
12 P
20 DG
14BRN
12 BRN
24 BRN/W
14
OR
20 GY
12 PPL/W
12 R
12 P
24 BRN/W
14
OR
BRK. ALARM
IND.
HI BEAM
IND.
LP.
GEN. IND. LP.
TEMP. IND. LP
INST* CL. LP.
OIL PRESS
IND.
LP.
HORN BUTTON
TO TRAFFIC
HAZARD SW.
20DBL
INST. CL. LP.
INST. CL. LP.
18 LBL
18 B
18DBL
r—20
BRN
20 OR
20
OR
20 PPL
4 LBL
20 DG
12 R
18 OR
BODY HARNESS
18 W—O-18W
^-20 BRN
20 LG
20 Y
20 DG
L.H. DR. JAMB SW.
20 LG
20 Y
20 DG
Fig.
Ill - Instrument Panel and Cluster — CheveNe
CHEVROLET CHASSIS SERVICE MANUAL
ELECTRICAL-BODY AND CHASSIS 12-76
20 OR
•431 INST. COMPT. LAMP&SW.
14 B
«3@H}U
EMM RADIO CONN.
HEATER SW.
-12 PPL
CLOCK
CLOCK LAMPS
HEATER CONT. LP.
20 GY
14LBL
14 BRN
14 Y
14 o:
14
OR
20 OR
20 B
12 R BAT.
12 P
12 P IGN.
12 PPL SOL.
12BRNAC
20 GY
GY
20 GY
14 OR
12 BRN
12 R
12 R
14 BRN-*
12 BRN—
20 DG
TRAFFIC HAZARD SW.
666SSSB
20DBL
20LBL
20 T
HORN
CONTACT
16B/W
20 LG
18 P
12 R
18 GY/DBL/B
20 B
14
OR
14 LBL
16 B
20
W
12 R
^
18
LBL
14 LBL
20 PP
18 OR
20 BRN
16
DG
IGNTTION SWITCH
GROUND
IGNITION LAMP
INST. LAMP
RADIO CAPACITOR CONN.
TEMP. GAGE
INST. LAMP
INST. LAMP
H. DIR. SIG. LAMP
INST. LAMP
CIGARETTE
SI
"MW LIGHTER & LAMP
INST. LAMP
CLUSTER GROUND
LAMP TELL-TALX LAMP
HI-BEAM LAMP
INST. LAMP
PARK ALARM LAMP
INST. LAMP
W/S WIPER
SWITCH
AMMETER
H. DIR. SIG. LAMP
INST. LAMP
FUEL GAGE
LIGHT SWITCH
-20 P
Fig.
119 - Instrument Panel & Cluster ~ Corvette
CHEVROLET CHASSIS SERVICE MANUAL