1967 CHEVROLET CAMARO check engine

ELECTRICAL-BODY AND CHASSIS 12-60

....
£
VALVE ASSEMBLY

mm

BROWN
*yr

RED '
WATER

INTAKE

PORT

|f|i

Wjjm WATER

|HP DISCHARGE

W PORTS

WASHER

PUMP

ASSEMBLY

Fig.
102 - Washer Pump Assembly

5. Remove gear mechanism from the gear box and slide

spacer washer (No. 9) off the gear assembly eccen-

tric shaft.

6. Slide the drive plate and shaft assembly (No.. 11) out

of the gear, assembly, remove the lock and drive

pawls (Nos. 12 and 13) and remove the coil spring

(No.
14).

Reassembly

1.
Assemble lock and drive pawls to the shaft and drive

plate assembly as shown in Figure 99.

2.
Install the assembled parts from Step 1 in the gear

and eccentric shaft as shown in Figure 100.

3.
Connect the coil tension spring between the lock and

drive pawls (fig. 100).
4.
Reinstall spacer washer on the eccentric shaft of the

gear.

5. Reinstall gear mechanism in the housing as shown in

Figure 101.

6. Reassemble the parts removed in Steps 1 through 4

under drive gear disassembly.

The washer pump and/or valve assembly (fig. 102) may

be removed from the wiper assembly as a unit; therefore

it is- not necessary to remove the. wiper assembly from

the vehicle if only the washer pump and/or valve assem-

bly requires service.

WASHER PUMP SECTION

PUMP REPLACEMENT

. To replace the washer pump assembly proceed as

follows:

1.
Raise vehicle hood and remove engine distributor

shielding and distributor cap.

2.
Remove lead wires from washer pump and disconnect

ground wire from screw retained connector; discon-

nect hoses from valve unit.

3.
Remove four screws which secure the washer pump

assembly to the gear box.

a* The water inlet and outlet valve assembly is

serviced as a unit if required; also the rotor cam

is serviced separately.

4.
Install washer pump and cover assembly so that the

slot in the washer pump cam fits over the pin on the

wiper unit drive plate.

5. Install the four washer pump to gear box retaining

screws, position ground lug under lower screw.

6. Connect valve inlet and outlet hoses, attach ground

lead and washer pump lead wires.

7. Install engine distributor cap and shielding.

8. Lower hood and check operation of wiper unit.

SPECIAL TOOLS

J-21932

BEZEL NUT REMOVER

Fig.
103 - Special Tools

CHEVROLET CHASSIS SERVICE MANUAL

SECTION 13

RADIATOR AND GRILLE

INDEX

Page Page

General Description 13-1 Repairs 13-4

Radiator and Shroud-All Vehicles (Except Corvette) . . . . 13-1 Installation 13-4

Removal 13-1 Grille Assembly - Chevy II 13-4

Installation 13-1 Removal . 13-4

Radiator and Fan Shroud - Corvette . . . . 13-1 Repairs 13-5

Fan Shroud Replacement 13-1 Installation . 13-5

Aluminum Radiator 13-1 Grille Assembly - Corvette 13-5

Copper Radiator . 13-1 Removal . . . . 13-5

Grille Assembly - Chevrolet 13-2 Installation ....*... 13-5

Removal 13-2 Grille Assembly - Caxnaro 13-5

Repairs 13-3 Removal 13-5

Installation 13-3 Repairs . 13-6

Grille Assembly - Chevelle 13-3 Installation . . 13-6

Removal 13-.Q

GENERAL DESCRIPTION

Radiator assemblies are attached by cap screws either the radiator and shroud are basically the same for each

to the radiator support or radiator shroud, depending on vehicle,

the engine installation of each vehicle. The Camaro fan

Shroud is mounted in two bottom slots and secured by one NOTE: Refer to the Fisher Body Service Man-

bolt at the top. Removal and installation procedures for ual for Body, Section IX for Sheet Metal, Section

14 for Bumpers, and Section 1A for Air Condi-

tioning information when required.

SERVICE OPERATIONS

RADIATOR
AND
SHROUD—ALL VEHICLES
NOTE: Reach upper two shroud bolts from top,

(EXCEPT CORVETTE)
between hood and radiator support. Reach lower

4 by reaching around front edge of open hood.

Removal

1.
Drain radiator. 4.- Remove shroud carefully (tilt rearward, then lift up

2.
Disconnect inlet and outlet radiator hoses, and Pow- to clear fan blades).

erglide cooler lines if vehicle is so equipped. 5. Reverse procedure to install, fill cooling system and

3.
Remove radiator and shroud attaching screws and lift check for leaks.

radiator and shroud out of vehicle.

Aluminum Radiator

Installation

NOTE:
Refer to Figures 1 through 5 for radi- Removal and Installation

ator fan and shroud assembled positions for each 1. Remove shroud as previously outlined.

vehicle. Reverse removal procedures, fill cool- 2. Disconnect lower raciiator hose at either end.

ing system and check for leaks. 3. Remove radiator upper mount bracket bolts and

bracket, then lift radiator from vehicle.

RADIATOR AND FAN SHROUD-CORVETTE 4. Reverse procedure to install.

Fan Shroud Replacement (Fig. 4) Copper Radiator

1.
Drain radiator and open hood. (Install a bolt in hole

of hood support bracket for safety purposes.) Removal and Installation

2.
Disconnect upper radiator hose and supply tank hose 1. Remove hood panel assembly after scribing bracket

at radiator connection. location.

3.
Remove shroud bolts. 2. Drain radiator and disconnect radiator hoses.

CHEVROLET CHASSIS SERVICE MANUAL

ACCESSORIES 15-9

Adjustment- Adjust the bead chain so that it is as tight

as possible without holding the throttle open when the

carburetor is set at its lowest idle throttle position.

When connecting the bead chain (engine stopped) manually

set the fast idle cam at its lowest step and connect the

chain so that it does not hold the idle screw off the cam.

If the chain needs to be cut, cut it three beads beyond the

bead which pulls the linkage.

REGULATOR

Service - A defective regulator, that is one which is not

simply out of adjustment, must be replaced. During re-

placement, check the hoses which connect to the regulator

and replace any which are cracked or deteriorated.

Air Filter

The air filter located in the solenoid cover should be

cleaned and re-oiled at engine oil change intervals.

1.
Snap the solenoid cover off.

2.
Remove the filter and wash it in kerosene or mineral

spirits. Squeeze it dry and wet with SAE 10 engine

oil.
Squeeze out excess oil and reinstall into the

cover.

3.
Attach the cover with neoprene seal to the solenoid

housing. Be certain that the cover fits tightly to the

housing.

One regulator adjustment is possible: Engagement-

Cruising Speed Zeroing (to remove any difference be-

tween engagement and cruising speed).

NOTE:
No regulator adjustment should be

made, however, until the following items have

been checked or serviced:

1.
Bead chain properly adjusted.

2.
All hoses in good condition, properly attached, not

leaking, not pinched or kinked.

3.
Regulator air filter clean and properly oiled.

4.
Electric and vacuum release switches properly

adjusted.

Engagement—Cruising Speed Zeroing

If the cruising speed is lower than the engagement

speed, loosen the orifice tube locknut and turn the tube

outward; if higher, turn the tube inward. Each 1/8 turn

will alter the engagement-cruising speed difference one

mph. Tighten the locknut after adjustment and check the

system operation at 50 mph.

ELECTRICAL SYSTEM CHECK OUT

1.
Check fuse and connector.

2.
Check electric brake switch as follows: Unplug con-

nector at brake switch. Connect ohmmeter at points

A and B on brake switch. The ohmmeter must indi-

cate infinity when the brake pedal is depressed and

continuity when pedal is released. The cruise re-

lease brake switch (electric) is adjusted as is the

standard stop light brake switch. Replace electric

brake switch if needed.

3.
Check engagement switch and connecting wiring as
follows: Unplug push button control connector

(brown, blue, black) at electrical wiring harness con-

nector and perform the following tests. (See Fig-

ure 10)

Test #1
—
Connect ohmmeter between terminal #1 (brown

wire) and terminal #2 (blue wire). Continuity shall be

maintained until switch is depressed all the way in.

Test #2
—
Connect ohmmeter between terminal #1 (brown

wire) and terminal #3 (black). No continuity shall be

shown; however, when the button is depressed halfway,

continuity shall be indicated. When the button is pressed

all the way down, no continuity shall be shown.

Test #3 — Connect ohmmeter between terminal #2 (blue

wire) and terminal #3 (black). Button released, no con-

tinuity; however, when the button is depressed partially

and fully, continuity shall be shown.

4.
Check regulator solenoid coil, low-speed switch, and

wiring harness as follows:

a. Disconnect engagement switch wire harness con-

nector from the main wire harness connector

(brown, blue, and black wires). Connect ohm-

meter
'
between point C (blue wire in main wire

harness) and ground. (Make sure the regulator is

well grounded to chassis.) The ohmmeter should

read 45 ohms ± 2 ohms. If a resistance of

greater value is shown, then disconnect the con-

nector from the regulator and measure the re-

sistance of the blue wire from point C to D. It

should measure 40 ohms. Check the resistance

from point E (vertical bar of terminal forming T)

to ground. It should measure 5 ohms ± 1/4 ohm.

Replace either the wiring harness or solenoid as

needed if greater values are indicated. The black

harness wiring from point F to G should also be

checked for continuity.

ENGAGEMENT SWITCH TEST

BUTTON POSITION

Cruise (released)

Engage (partially depressed)

Trim (fully depressed)
TERMINALS

1 TO 2

closed

Closed

open
1 TO 3

open

closed

open
2 TO 3

open

closed

closed

SERVO AND VACUUM SYSTEM CHECK OUT

To determine the condition of the diaphragm, remove

hoses from power unit and apply 14 inches of vacuum to

either vacuum tube opening (seal the other opening) and

hold in for one minute. The vacuum shall not leak down

more than 5 inches of vacuum in one minute. If leakage

is detected, replace servo. To utilize engine as a vac-

uum source, proceed as follows:

1.
DISCONNECT SERVO $EAD CHAIN and hoses from

servo and connect engine vacuum directly to vacuum

servo fitting (fitting in middle of servo). Seal the

servo unit opening.

2.
Note position of servo diaphragm.

3.
Start engine - the diaphragm should pull in.

4.
Clamp off engine vacuum supply line and check for

leakage. '

The cruise release brake switch (vacuum) and connecting

hoses can likewise be checked using a vacuum pump.

CHEVROLET CHASSIS SERVICE MANUAL

ACCESSORIES 15-11

12 VOLTS D.C.
ELECTRIC BRAKE

RELEASE

IGNITION

SWITCH

ENGINE

VACUUM

TRANSDUCER

Fig.
11 - Vacuum and Electrical Diagram

AUTOMATIC LEVEL CONTROL

INDEX

Page

General Description . . 15-11

System Checks and Adjustments 15-13

Service Operation . 15-15

GENERAL DESCRIPTION

A pneumatic level control system that automatically

maintains correct rear trim height of a car under varying

load conditions, the optional automatic level control is

used only in conjunction with the Superlift Shock Absorber

option.

The Superlift Shock Absorber option alone, consists of

the two shock absorbers with pressure lines to a "Tee"

where a ill valve is located, the shocks are inflated

with (or deflated of) compressed air (at any gas station)

to obtain the vehicle level desired with any given load

change.

The automatic leveling system is added to the Superlift

Shock Absorbers and supplies its own compressed air.

The system (fig. 13) consists of a vacuum operated air

compressor with pressure regulator,
and
integral storage

tank, vacuum line to engine, air intake filter, air lines,

and a height control valve.

The COMPRESSOR is a two-stage, vacuum actuated

type, requiring no lubrication. Vacuum supply is taken

from engine carburetor base. High pressure air is
supplied to the reservoir tank by the second stage of

the two-stage compressor. The first stage intake stroke

draws air at atmospheric pressure through a oneway

check valve located in the end of the first stage housing

under the first ^tagei housing cover. On the first stage

compression stroke, the intake valve is closed and the

oneway check valve in the second stage end of the piston

is opened. This allows the air from the first stage

cylinder to flow through the hollow piston into the second

stage cylinder for jhigh pressure compression. The

second stage compression stroke closes the check valve

in the piston and opeijis the check valve in the end of the

second stage housing.

The intake and compression strokes are controlled by a

sliding distributor valive that is actuated through an arm

that is tripped by the piston as it nears the end of each

stroke. Each time the arm actuates the distributor

valve, a different set of holes are covered in the first

stage housing. The distributor valve controls the flow of

intake manifold vacuum and air under atmospheric pres-

CHEVROLET CHASSIS SERVICE MANUAL

ACCESSORIES 15-13

SYSTEM TEST
CHECKS AND ADJUSTMENTS

Automatic Level Control Test Gauge (Fig. 15)

A complete system test includes on and off-the-car

component tests.. '

On the car tests are:

Quick check of Automatic Level Control System

Compressor output test

Regulator test and adjustment

Control valve test

Time delay test

Line and fitting leak test

Trim adjustment

Off-the-car operations include:

Control valve replacement

Compressor repair

Component leak tests

a. Compressor, reservoir, and regulator

b.
Control valve

c. Superlifts

Quick Check-On Car (Reservoir Pressure at 150 PSI)

1.
Fill the fuel tank or simulate at the rate of 6 lbs./

gal.
- otherwise car should be empty.

2.
Turn engine off.

3.
Add a 2 passenger load to the rear bumper or tail-

gate.
Maintain the load until the -car lifts or AT

LEAST 20 SECONDS.

4.
After car lifts remove the load and observe until the

car lowers.

FILL VALVE

J-21999

CONNECTORS

Fig.
15 - Test Gauge Set J-22124
NOTE: To service the Automatic Level Con-

trol it will be necessary to secure Gauge Set

J-22124 or make up the following test gauge. If

the connectors indicated are not readily avail-

able others may be substituted.

1.
Collect the following parts:

a. Fill Valve, J-21999.

b.
A tee which has three 1/8M female taper pipe

threads.

c. An adapter which has a 1/4" female taper pipe

thread on one end and a 1/8" male taper pipe

thread on the other end.

d. Air Pressure Gauge, J-4872.

e. Two metal sleeves, rubber seals and tube nuts.

f. A length of 1/8" tubing. ~

g. Two male connectors which have a 1/8" male

taper pipe thread on one end and a 3/8-24 straight

thread male fitting on the other end.

2.
Assembly

a. Connect Fill Valve, J-21999, (female end) at male

connector 3/8-24 straight thread fitting.

b.
Connect other end of male connector to tee.

c. Connect adapter to tee.

d. Connect pressure regulator to adapter.

e. Connect second male connector to tee, (1/8 inch

male pipe thread fitting).

f. Install tubing to connector; other end of tubing

will go on unit to be checked.

NOTE:
Make certain all fittings are air tight.

Compressor Output Test—On Car

1.
With all accessories off, run the engine until fast idle

screw is off the fast idle cam. Turn off ignition.

2.
Deflate system through service valve, then remove

high pressure line at regulator adapter and connect

test gauge.

3.
Inflate reservoir to 70 psi through service valve.

4.
Observe test gauge for evidence of compressor air

leak.

5.
If leaking, proceed to leak test-compressor reser-

voir, and regulator. If not leaking, continue this

test.

6. With engine running at slow idle, observe reservoir

build-up for five minutes. Reservoir pressure should

build up to a minimum of 90 psi.

7.
If compressor fails to cycle, make sure the vacuum

and air intake lines are open and unobstructed before

removing compressor for repair.

8. If build-up is too slow, proceed to repair com-

pressor.

9. Satisfactory build-up indicates system problem to be

in the control section. However, again observe the

test gauge for evidence of an air leak and proceed

accordingly.

Regulator Test and Adjustment

Performance test the regulator with a known good com-

pressor on the car. *

CHEVROLET CHASSIS SERVICE MANUAL

ACCESSORIES 15-14

Deflate system through service valve and disconnect

line at pressure regulator valve. Install test gauge on

regulator valve high pressure fitting.

Inflate system through service valve to maximum

available pressure.

NOTE: If available pressure is less than 140

psi,
start engine to build-up reservoir to this

pressure.

Regulated pressure should build-up to and hold

steady at 100-130 psi on test gauge.

Check regulated pressure by momentarily (not more

than one second) depressing valve core on test gauge

arid observe gauge reading.

If regulated pressure now reads less than 100 psi,

replace regulator assembly.

If regulated pressure exceeds 130 psi, replace regu-

lator assembly.

Control Valve Test

Exhaust (Superlifts Inflated)

1.
Disconnect control valve lever from link.

2.
Hold lever down in exhaust position until Superlifts

deflate or for a minimum of 18 seconds.

3.
If Superlifts deflate, perform Intake Check.

4.
If Superlifts do not deflate, remove exhaust adapter

from control valve and hold lever down as in Step 2.

Replace adapter, O-ring and filter if this deflates

Superlifts.

5.
Replace control valve if none of the above steps solve

problem.

Intake (Reservoir Pressure 125 psi Minimum)

1.
Disconnect overtravel lever from link.

2.
Hold lever up in intake position until Superlifts in-

Fig.
16 - Assembly Leak Test Preparation
flate or for a minimum of fifteen seconds.

3.
If Superlifts inflate and hold, proceed to Time Delay

Check. '•

4.
If Superlifts inflate and then leak down, perform leak

test on lines and fittings and then on Superlifts and

control valve. Repair or replace as indicated.

Time Delay Test (Reservoir Pressure 125 psi Minimum)

1.
Record rear trim height of empty car (rear bumper

to ground).

2.
Add weight equivalent to two passenger load to rear

of car. Car should begin to level in 4-18 seconds.

3.
Remove weight. After 4-18 seconds car should begin

to settle.

4.
Replace valve if time delay is not within the 4-18

seconds.

Trim Adjustment—On Car

Trim adjustment should be performed with a full fuel

tank (or the equivalent in load at the rate of 6 lbs
./gal-

lon)
,
but no other load.

Abbreviated Adjustment

1.
Fill the compressor at the service valve with the

available air line pressure.

2.
Disconnect link from height control valve lever.

Move the height control valve lever upward until air

fills the Superlifts.

3.
Move lever downward and hold until air stops escap-

ing from the exhaust port of the height control valve.

The Superlifts will now automatically hold 8 to 15

PSI.
;

4.
Let lever go to its neutral position> and loosen the

lever adjustment nut.

5.
Assemble the link to the height control valve lever

and tighten the lever adjustment nut.

NOTE: Do not move control valve lever and

overtravel body while tightening nut.

Leak Tests

Compressor, Reservoir and Regulator

1.
Remove assembly intact.

2.
Connect test gauge to regulator. Inflate reservoir

through service valve to 80-110 psi.

3.
Route an 8" rubber hose between vacuum and vent

ports,
(fig. 16).

4.
Submerge in water and observe for air leaks at:

Reservoir weld seam.

Reservoir to compressor O-ring.

Regulator to compressor O-ring.

Regulator boot-defective internal.O-rihg.

Diaphragm between first and second stage housings.

' Tightening through bolts may correct the leak.

Cover gasket and retainer screw. A few bubbles here

is not a leak. A continuous stream indicates defec-

tive compressor check valves.

Service valve.

Test gauge connections.

5.
Correct any leaks detected by either tightening

screws or replacing parts.

CHEVROLET CHASSIS SERVICE MANUAL

SPECIFICATIONS
12

TUNE UP CHART

E

N

G

I

N

E
Type

Displacement

Horsepower

Compression ®

srp

;•

D

S

R

I

B

TT

T

o

R
Make

0.

Number
Standard

Cold

Gap

Point Dwell

Point Gap

1 ,

Arm Spring Tension

Condenser

T

I

M

j

N

G ®

Drive

Belts
Exc.

A.I.R.

AXR.
Syn.

Auto.

Syn;

Auto.

Fan & P/S

A/C Compressor

A.LR. Pump

Air Cleaner

Valve

Lash

Idle

<§>

Fuel.

Pump
Inlet
Exhaust
<§)

Exc.

A.LR.

A.LR.
Syn.

Auto.

Syn.

Auto.

Pressure

Volume

Crankcase Vent
In Line

153

90
194

120
230

140
250

155

130

AC

AC

31° -
46N

44N

• 34°
V8

283

195

150

AC 45

AC 44
327

210
275
300

160
325
350

150
350

295
396

325

350
427

385

390
400

160

AC 44

AC 43
425
435

150

AC 43N

AC C42N

.035

28° - 32°

.4)16"
(Used) .019" (New)
<

19 - 23 Ounces

4°B

4°B
4°B

4°B

2°B

4°B
4°B

4°B

4°B

4°B
28

- 32 (
yz.

19 - 23 oz.

.18 - .23 Microfarad

4°B

4°B

4°B

4ftB
4°B

4°B

0°B

4°B

50 lb. Min. 75

65 Jh. Min. 95

35 lb..Min. 5£

500
2°B

2°B

2°B

2°B
8PB

8°B

6°B'

6°B
6°B

6°B

6°B

4°A
10°B

X

ib°B

X
10PB

X

10°B

X
4°B

4°B

4°B

4°B
4°B

4°B

4°B

4°B
4°B

4°B

4°B

4°B

± 5 lbs.
(Used):
125 ± 5 lbs. (New) Using Strand '

± 5 lbs.. (Used) 140 ± 5 lbs. (New) Using Strand '

>
± 5 lbs. (Used) 75 ± 5 lbs. (New) Using Strand r

Hydraulic - One Turn Down From Zero Lash

Hydraulic - One Turn Down From Zero Lash

500

X
700*

600*

3 to
700*

500*

4-1/2
500

600
500

500

700*

600*
700

750
500

500

700

500
500

500

700

500
550

550

700

500
4°B

4°B

4°B

4°B
4°B

4°B

4°B

4°B
4°B

4°B

4°B

4°B

Tension Gauge

Tension Gauge

Tension Gauge

550

550

700

550
550

550

700

550
550

550

750

600
10°B
5°B

X

X

.022"

.024"

1000

X

X

X
.024"

.028"

750

X

750

X

5 to 6-1/2

One Pint in 30 - 45 Seconds

Service at 12,000 Miles

OD Psi at cranking speed, throttle wide open - Maximum variation, 20 lbs. between cylinders.

© At idle speed with vacuum advance line disconnected and plugged. A = A.T.D.C.; B = B.T.D.C.

® Paper Element - Service at 12,000 miles initially - Check every 6,000 miles thereafter, until replaced.

Polyurethane - Service every 12,000 miles.

Oil Bath - Change oil at regular engine oil change intervals.

® Mechanical - Set with engine at operating temperature and running.

@ Automatic Transmission - Set idle with transmission in drive.

Air Conditioned Vehicles - Set idle with air conditioning turned "ON" except on specifications indicated by *.

CHEVROLET CHASSIS SERVICE MANUAL