1967 CHEVROLET CAMARO air suspension

BRAKES 5-29

Fig.
42—Installing Caliper on Disc

Check that the hose does not touch other parts at

any time during suspension or geometry travel.

If contact does occur, remove the U-shaped retainer

and rotate the end of the hose in the support bracket

one or two points in a direction which will eliminate

hose contact. Reinstall the retainer and recheck

for hose contact. If it is satisfactory, place the

steel tube connector in the hose fitting and tighten

securely.

If rear brake caliper is being serviced, connect

brake line to caliper.

Bleed brakes as outlined in this section.

Install wheels and lower vehicle.

BRAKE DISC

Servicing of the disc brakes is extremely critical

due to tolerances required in machining of the brake

disc to insure proper brake operation. In manufacturing

the brake disc, tolerances of the rubbing surfaces for

flatness is .001 and for parallelism is .0005, while

lateral runout of the faces must not exceed .004 total.

The maintenance of these close controls of the shape of

the rubbing surfaces is necessary to prevent brake

roughness. In addition, the surface finish must be non-

directional and maintained at 30-50 micro-inches. This

control of the rubbing surface finish is necessary to

avoid pulls and erratic performance and promote long

lining life and equal lining wear of both left and right

brakes.

tight scoring of the disc surfaces not exceeding .015

in depth, which may result from normal use, is not

detrimental to brake operation.

When the total disc thickness is less than .965 for the

1"
thick disc or 1.215 for the 1-1/4" thick disc, it should

be replaced. Disc thicknesses less than this can permit

the shoes to come out of contact with the shoe abutments

and cause malfunction.

Because performance is not impaired by surface im-

perfection not exceeding .015 deep, refinishing of the

rubbing surface is not necessary.
Fig.
43—Dial Indicating Disc Runout

Since extremely accurate control of the finishing oper-

ation is necessary for proper performance and excess

metal removal can cause malfunction, refinishing of the

rubbing surface is not recommended.

Checking Procedure (Fig. 43)

Front

Tighten the adjusting nut of the wheel bearing until all

play has been removed. It should be just loose enough

to allow the wheel to turn. Clamp a dial indicator to the

caliper so that its button contacts the disc at a point about

1 inch from the outer edge. When the disc is turned, the

indicator reading should not exceed .002 inches. If runout

exceeds this amount the hub and disc assembly should

be replaced. Due to the close tolerances involved it is

not recommended that the front discs be machined or

serviced separately.

After checking the runout, readjust, the wheel bearings

as outlined in Section 3 of this manual.

Rear—Corvette Only

Check the rear wheel bearing end play, as outlined in

Section 4 of this manual. Then dial indicate the disc face.

If lateral runout of the disc exceeds the bearing end play

by .003 inches, the disc should be refaced (not to exceed

.040 inches) or replaced.

Removal

1.
Raise vehicle and remove wheel and tire assembly.

/ 2. Remove brake caliper as outlined in this section.

3.
Drill out the five rivets attaching the disc to the hub

or spindle.

4.
Remove brake disc from vehicle.

5. Complete the removal of the five rivets from the

hub or spindle.

Installation

1.
Install the disc to the hub or spindle aligning the lug

bolts with the holes in the disc.

CHEVROLET CHASSIS SERVICE MANUAL

WHEELS AND TIRES 10-5

WHEELS

The wheel and tire assembly should be removed from

vehicles equipped with disc brakes to properly perform

balancing operations. This is necessary due to drag of

the spring loaded brake shoes on the disc.

Static Balancing (W/Tire)

Static Balance (still balance) is the equal distribution

of weight of the wheel and tire assembly about the axis

of rotation so that the assembly has no tendency to rotate

by
itself.
Static unbalance causes the pounding action of

the front wheels that is called "tramp".

To correct static unbalance (front and rear): The

quickest and best methods to correct static unbalance

are through the use of wheel balancers which are com-

mercially available. Refer to the Information and in-

structions included with these balaricers.

Dynamic Balancing (W/Tire)

Dynamic Balance (running balance) requires the wheel

to be not only in static balance, but balanced and running

smoothly while turning on an axis which runs through the

centerline of the wheel and tire perpendicular to the axis

of rotation.

The quickest and best methods of testing and correcting

dynamic unbalance are by the use of dynamic wheel

balancers which are commercially available. These bal-

ancers include all necessary information on where and

how the balancing weights should be placed. The follow-

ing information, however, will help in the correction of

dynamic balance.

NOTE:
Before attempting to balance the

wheels, check to be certain that no foreign

matter has been trapped in the wheel ventila-

tion slots or in the accessory wheel discs. This

is especially important if the vehicle has been
run in soft mud and then parked in freezing

weather.

When a wheel that is statically unbalanced is dynam-

ically in balance the dynamic balance can be retained

while correcting "the static balance by installing the cor-

rective weights so that half of the weight required is

placed on the inner edge of the rim and the other half

on the outer edge of the rim.

Dynamic unbalance can be corrected without destroying

static balance by installing weights so half of weight

required for dynamic balance is placed on the rim op-

posite the heavy point, while the other half is placed 180°

away and on the opposite side of the rim.

NOTE:
Vehicles with wire wheel covers should

have the wheels balanced with the wire wheel

covers installed on the wheels.

Run Out (W/OTire)

The wheels should not run out (wobble) more than

1/16" as measured on the side of the rim at the base

of the tire. Excessive run-out is the result of a bent

wheel, an improperly mounted wheel, worn knuckle bear-

ings or steering connections. These parts should be

checked for correct adjustment, proper alignment and

wear whenever excessive run-out is encountered.

The wheels should also run concentric with the steering

knuckle spindle within 1/16 inch as measured on the tire

bead seat of the rim with the tire removed.

Wheel run-out, eccentricity and balance are closely

associated with steering and front wheel alignment.

Further information on these subjects will be found under

"Suspension".

Cleaning Aluminum Wheels

Do not use wire brush or abrasive cleaners when

cleaning wheels. Use only cleaners that will not react

with aluminum.

SERVICE OPERATIONS

TIRES

Removal

Dismounting tubeless tires presents no problems if the

correct procedures are used and the following precau-

tions observed.

1.
Remove the valve cap and valve core. Let out all the

air.

2.
Press the inner side of the tire into the rim well.

Use bead loosening tool or if regular tire irons are

used, take particular care not to injure or tear the

sealing ribs on the bead.

CAUTION: Never use tire irons with sharp

edges or corners.

3.
Using tire irons on the opposite side, remove bead,

taking small "bites" around the rim.

4.
Turn the tire over, and use two tire irons, one be-

tween the rim flange and the bead to pry the rim

upward, the other iron to pry outward between the

bead seat and the bead.
Installation

Extreme care must be exercised to prevent injury to

the sealing bead and circumferential bead when forcing

tire over rim.

1.
Apply a light film of Ruglyde or other suitable rubber

lubricant to sealing bead of tire.

NOTE:
The use of excessive lubrication may

lead to rim slippage and subsequent breaking of

air seal.

2.
Carefully mount the outer bead in usual manner by

using tire irons, taking small "bites" around rim,

being careful not to injure the tire bead.

CAUTION: DO NOT use a hammer, as damage

to the bead will result.

3.
Install the inner bead in the same manner.

NOTE:
If a seal cannot be effected in the fore-

going manner with the rush of air it can be

, accomplished by applying to the circumference

of the tire a tire mounting band or heavy sash

cord and tightening with the use of a tire iron.

On tire mounting machines, bouncing the tire

assembly is not required. The tire should be

CHEVROLET CHASSIS SERVICE MANUAL

CHASSIS SHEET METAL 11-18

b.
Check and adjust front wheel alignment as out-

lined in Section 3.

c. Check and adjust headlamp aiming as outlined in

Section 12.

HOOD ASSEMBLY

Hood may be removed either with or without hinges.

To shorten aligning time, hood hinge plates may be lo-

cated by scribing a mark on hood and/or body which

outlines entire plate. See Maintenance and Adjustments -

Hood Hinge for hood adjustment procedure. Hood hinge

springs may be easily and safely removed and installed.

through the use of Tool J-9559 as follows:

1.
With hood opened only far enough to allow passage of

mechanic's arm between hood and fender, insert ends

of J-9559 (through bolt removed) between coils of

spring until barrel of tool contacts outer diameter

of spring.

2.
Open hood fully while still holding spring (with tool

installed) in hand; when hood is near fully opened

position, spring may be removed as shown in Figure

28.

3.
As soon as spring is removed, insert long bolt sup-

plied with J-9559 through holes in end of tool, pass-

ing it through spring, and install nut on bolt.

Spring may be removed from J-9559 or J-9559 may be

installed in a new spring by the following method:

1.
Place a closed 6 or 8 inch "C" clamp in a vise or

fasten it to a heavy bench top (bench should be fas-

tened to floor).

2.
Hook one end of spring in clamp and the other end

in hook of a hoist as shown in Figure 29.

3.
Stretch the spring enough to allow insertion of

J-9559. Install through bolt if spring is not to be

installed on hinge at once.

HOOD CATCH AMD LOCK (Fig. 19)

Removal

1.
Remove catch assembly as follows:

a. Remove screws retaining catch assembly to radi-

ator support.

b.
Remove screws retaining catch assembly to catch

support assembly.

c* Remove screws retaining catch assembly to grille

upper bar.

2.
Before removing hood lock plate from hood, locate

position on hood by scribing around base of lock

plate. Remove screws retaining lock plate to hood

and remove lock plate from vehicle.

Installation

1.
Install both catch and lock assemblies in reverse

order of removal procedure.

2.
Align as outlined under Maintenance and Adjust-

ments - Hood Catch.

HOOD TRIM

Crown Molding

Hood crown molding is retained by clips installed on

underside of hood. Clips may be removed by carefully

pressing them off molding mounting studs with screw

driver.
When installing a new molding, force clips onto mount-

ing studs as far as possible and then clench clips with

long-nosed pliers to eliminate gap between molding and

hood, as shown in Figure 30.

Emblem

The hood emblem is retained by four nuts which are

accessible from under the hood.

COWL VENT GRILLE

The cowl vent grille replacement procedure for Chevy

U is the same as for Chevrolet and Chevelle. Refer to

Chevrolet and Chevelle Cowl Vent Grille replacement

procedure and see Figure 16.

FRONT END ASSEMBLY

The Chevy n front end body design allows for removal

of the entire front end of the vehicle without disassembly

of front suspension of sheet metal. One man may remove

and transport the front end assembly using only a floor

jack placed under the crossmember and the vehicle front

wheels. Figure 31 illustrates the assembly in process

of removal with jack stand in position under rocker panel.

Proceed with removal
as.
follows:

Removal

1.
Remove hood assembly as outlined in this section.

2.
Remove engine assembly as outlined in Section 6.

On 4 cylinder models, replace crossmember.

3.
Raise car from floor and install jack stands as

shown in Figure 31.

4.
Remove pitman arm from steering gear as outlined

in Section 9.

5.
Remove steering gear mounting bolts from skirt

assembly.

6. Remove 4 bolts securing each skirt assembly to

lower dash brace.

7.
Remove fender-to-rocker extension mounting screws

and record shimming.

8. Remove brake hydraulic line and fuel line from right

hand skirt.

9. Position floor jack or equivalent under front cross-

member.

10.
Remove hydraulic line from main cylinder.

11.
Remove fender-to-cowl mounting screws and record

shimming.

12.
Remove upper skirt-to-dash mounting screws and

record shimming.

13.
Remove front end from vehicle as shown in Figure

31.

Inspection

If car has been involved in a collision, it is advisable

to carefully inspect cowl and dash area for damage. Pay

particular attention to welds, cage nuts, weld nuts and

skirt mounting surfaces. Cage and weld nuts may be

repaired by outright replacement (the best method), or

by the installation of spiral thread inserts. If the spiral

inserts are used, follow the instructions furnished by the

manufacturer. -

Installation

%, position front end assembly at upper dash mounts

and lower dash support, align screw holes with drift

punch and install all mounting screws and bolts

loosely; do not tighten until all screws and bolts are

started. Replace original shimming.

CHEVROLET CHASSIS SERVICE MANUAL

SPECIFICATIONS
2

RIDING HEIGHT MEASUREMENT*

Chevrolet
All Biscayne
and Bel Air 2 and 4
Doors,

All Impala
and
Caprice
4
Doors
and

All Station Wagons
. . . .

All Impala
and
Caprice
2
Doors
. . . . .
5-1/8"
± 1/2"

5-3/8"
± 1/2"

Chevelle
All Sedans

SS Coupe
and
Convertible

El Camino
and
Station W*
1-3/811
± 1/2"

1-1/8"
± 1/2"

..
2" ± 1/2"

Chevy
u
All
4 and 6
Cylinder Standard
2 and 4
Doors,

All Station Wagons,
and 6
Cylinder Nova
4
Door

All
8
Cylinder Standard
2 and 4
Doors,
All

Nova
2
Doors
and 8
Cylinder Nova
4
Door
. . .
3-3/4'

3-1/4'
±
1/2'

±
1/2'

Corvette
With
327 or 427
Engine
. . . .

327 Engine with
A/C or 427
Engine with
A/C,
P.S.,.and
P.B

Convertible with
327
Engine, Hardtop,
A/C, P.S., P.B., and
Powerglide

427 Engine with Optional Suspension
.
2-1/2"

.
2"

1-1/2"

1-1/2"
±
1/2"

±1/2"

±
1/2"

±
1/2"

Camaro
With
230
Engine
..... . . .

With
250
Engine
.... ...

With
283 - 327 and
350 Engine
2-3/4"

2-7/8"

2-5/8"
± 1/2"

± 1/2"

± 1/2"

•Must be within 1/2" from side to side

BOLT TORQUES

TORQUES

Spherical Joint

Upper Stud
Nut

Lower Stud
Nut

Stud
to
Control

Arm Nuts (Service)

Lower Forging
Nut

Steering
Arm
Attaching Nuts

Shock Absorber

Upper Shaft
Nut

Lower Attachment

Bracket
to
Spring Tower

Stabilizer
Bar

Frame Bracket Bolts

Link Nuts

Strut
Rod

Rod
to Arm Nut

Adjustment
Nut

Front Spring

Spring Seat
to
Control

Arm Nuts

Lower Control
Arm

Inner Pivot Nuts

Upper Control Arm

Attaching Nuts

Collar Bolts

Brake Anchor Pin

Drum Brakes

Brake Anchor Bolt

Disk Brakes

Lower Control Arm

Cross Shaft Bolts

Front

Rear .

Wheel Stud Nuts
Chevrolet

50 ft. lbs.

80 ft lbs.

25 ft. lbs.

40 ft. lbs.

50 ft. lbs.

8 ft. lbs.

15 ft. lbs.

—

15 ft lbs.

8 ft. lbs.

70 ft lbs.

80 ft lbs.

115 ft lbs.

75 ft lbs.

45 ft lbs.

130 ft lbs.

—

65 ft lbs.
Chevelle

50 ft lbs.

80 ft lbs.

25 ft. lbs.

—

85 ft lbs.

8 ft lbs.

20 ft lbs.

—

15 ft lbs.

8 ft lbs.

—

80 ft lbs.

50 ft. lbs.

45 ft. lbs.

130 ft lbs.

—

65 ft lbs.
Chevy H

45 ft lbs.

45 ft lbs.

25 ft lbs.

—

65 ft. lbs.

8 ft lbs.

9 ft lbs.

9 ft. lbs.

9 ft. lbs.

10 ft. lbs.

45 ft lbs.

80 ft lbs.

30 ft lbs.

65 ft lbs.

50 ft. lbs.

50 ft lbs.

130 ft lbs.

_

—

65 ft lbs.
Corvette

45 ft lbs.

20 ft lbs.

20 ft lbs.

—

20 ft lbs.

10 ft lbs.

—

10 ft lbs.

10 ft. lbs.

—

95 ft lbs.

35 ft lbs.

40 ft lbs.

75 ft lbs..

70 ft lbs.

135 ft lbs.

75 ft lbs.
Camaro

50 ft lbs.

65 ft lbs.

25 ft lbs.

—

85 ft lbs.

8 ft lbs.

20 ft lbs.

.
—

15 ft. lbs.

8 ft._lbs.

_

85 ft lbs.

50 ft lbs.

45 ft lbs.

130 ft lbs.

_

—

65 ft lbs.

CHEVROLET CHASSIS SERVICE MANUAL