ELECTRICAL-BODY
AND
CHASSIS
12-56
DEPRESSED PARK 2-SPEED WIPER
AND
WASHER
CORVETTE
GENERAL DESCRIPTION
The 2-speed windshield wiper
(fig. 91)
consists
of a
compound wound
12
volt dc motor and
a
gear box section
containing
the
gear mechanism
and
relay control.
The
motor armature
is
fitted with
a
worm gear which drives
the main gear assembly and crank arm.
The relay control, consisting
of a
relay coil, relay
armature
and
switch assembly,
is
located in the gear
box"
section and controls the starting and stopping of the wiper
through
a
latching mechanism (fig. 92).
An electric .washer pump
is
mounted
on the
gear box
section
of the
wiper
and is
driven by the wiper unit gear
assembly (fig. 93).
SERVICE OPERATIONS
WIPER MOTOR
AND
WASHER
PUMP ASSEMBLY
REMOVAL AND INSTALLATION
1.
Raise vehicle hood
and
disconnect, ground lead
at
battery.
2.
Remove engine distributor shielding
and
left bank
spark plug wire vertical shield.
3.
Disconnect left bank spark plug wire bracket-to-
manifold and position assembly to one side.
4.
Disconnect ignition resistor at firewall, then remove
washer pump inlet
and
outlet hose
at
pump valve
assembly.
5.
Remove engine distributor
cap
and position
to one
side;
then disconnect washer pump
and
motor
as-
sembly lead wires.
6. Remove glove
box
door
and
compartment. Refer
to
Section
1
for
removal procedure.
7.
Make sure wiper arms
and
wiper motor are both
in
the parked position; then remove
the
wiper trans-
mission retaining clip and disconnect both transmis-
sion and spacer from crank arm (fig. 93).
8. Remove four wiper motor-to-dash wall mounting
bolts and remove wiper motor from vehicle.
9. With
the aid of
an assistant position the wiper motor
to
the
dash wall
and
install the four motor mounting
bolts,
making sure motor assembly
is in
parked
position.
GEAR
BOX
SECTION
—<
MOUNTING
^*^
GROMMET
MOTOR
_/
SECTION
MOUNTING
/"""GROMMET
ARMATURE
END
PLAY
ADJUSTING SCREW
AND LOCK
NUT
P
^
CRANK
^_ /GROMMETS
RELAY
Fig.
92 -
Relay Control
10.
Position left transmission assembly, spacer
and
right transmission assembly
on
crank arm, then in-
stall
the
retaining clip
in the
groove
in
the crank
arm.
11.
Install glove compartment and door assembly. Refer
to Section
1
for
installation procedure.
12.
Install washer pump and motor assembly lead wires;
then install engine-distributor cap.
13.
Install washer pump inlet
and
outlet hose
to
pump
valve assembly, then install ignition resistor
to
firewall.
14.
Connect left bank spark plug wire bracket-to-mani-
fold, vertical shield and engine distributor shielding.
ROTOR
CAM. ^
CAM SLOT-~-*"'-*
WASHER PUMP^.
DRIVE
PIN
m
M
VALVE
— ASSEMBLY
i
Fig.
91 - Wiper Assembly—Corvette
Fig.
93 - Washer Pump
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
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
SPECIFICATIONS
15
DISTRIBUTORS
Engine Description
and Availability
4 CyL-153 Cu. In.
Chevy H
6 CyL-194 Cu. In.
Chevy IL with or without
RPO K-19
6 CyL-230 Cu. In.
Chevelle & Camaro
6 CyL-230 Cu. In.
Chevelle & Camaro
With RPO K-19
6 CyL-250 Cu. In.
Chevrolet
8 CyL-283 Cu. In., 195 H.P.
Chevy II, Chevelle,
Chevrolet Exc. w/Man. Trans.
& RPO K-19
8 CyL-283 Cu. In., 195 H.P.
Chevy IL Chevelle, Chevrolet,
8 GyL-327 Cu. In. 2 Bbl,
(210 H.P.) Camaro
8 CyL-327 Cu. In. 4 BbL
(275 H.P.) Chevy H,
Chevelle, Chevrolet, &
Camaro EXC. w/RPO K-19
8 CyL-327 Cu; In. 4 BbL
(275 H.P.) Chevy n,
Camaro, Chevelle &
Chevrolet w/RPO K-19
8 CyL-327 Cu. In. (300 H.P.)
Corvette IncL RPO K-19
w/Man. Trans.
8 CyL-327 Cu. In.
Corvette (300 H.P.)
Auta Trans. w/RPO K-19
8 CyL-327 Cu. In.
Chevelle (325 H.P.)
8 CyL-327 Cu. In.
Corvette (350 H.P.)
8 CyL-350 Cu. In.
Camaro
8 CyL-396 Cu. In.
Chevrolet, Chevelle,
(325 H.P.) RPO L-34
& RPO L-36 w/RPO K-19
8 CyL-396 Cu. In.
Chevelle (350 H.P.)
8 CyL-427 Cu. In.
Chevrolet (385 H.P.)
Exc.
RPO K-19
8 CyL-427 Cu. In.
Corvette (390 H.P. RPO L-36,
400 H.P. 3x2 RPO L-68)
8 CyL-427 Cu. In.
RPO L-71 (435 H.P.)
8 CyL-327 Cu. In.
Corvette (350 H.P.)
8 CyL-427 Cu. In.
RPO L-36 & L-68
Ignition
Distributor
(Product
Part No.)
1110292
1110388
1110362
1110387
1110351
1111150
1111256
1111101
1111249
1111150
1111194
(Tach. Drive)
1111117
1111195
1111196
Tach. Drive
1111168
1111169
1111170
1111247
1111258
Tran. Ign.
w/Tach. Drive
1111157
Tran. Ign.
Tach. Drive
1111248
Tach. Drive
Centrifugal
Advance
(Crank
Degrees @
Engine RPM)
0° @ 600
14° @ 1500
28° @ 3700
0° @ 900
20° @ 2000
08 | 900
10° @ 1200
30° @ 3200
0w @ 950
17° @ 2100
26° @ 4000
0" @ 900
15° @ 1600
23° @ 2300
28° @ 2800
0" @ 900
10° @ 1500
15° @ 2000
28° @ 4200
0° @ 900
15.5°
@
1600
0°
@
900
11° @ 1500
26° @ 4100
0° @ 900
10° @ 1500
15° @ 2000
28° @ 4200
0" @ 900
9° @ 1200
15° @ 1500
30°
@
5100
0° @ 900
19° @ 1200
25°
@
1500
40° @ 5100
0u @ 900
9° @ 1200
15° @ 1500
30° @ 5100
0° @ 900
9° @ 1200
15° @ 1500
30° @ 5100
0b @ 900
9° @ 1300
15° @ 1700
26° @ 4700
, 0B @ 900
8.5° @ 1250
17° @ 2000
32° @ 5000
0°
@
900
8.5° @ 1250
17° @ 2000
32° @ 5000
0° @ 900
8.5°
@
1250
17° @ 2000
32° & 5000
0° @ 900
30° @ 3800
0w @ 900
17°
@
1600
28° @ 4600
0" @ 900
8.5° @ 1250
17° @ 2000
32° @ 5000
Vacuum
Advance
(In Crank
Degrees)
0° @ 6" Hg.
23° @ 12" Hg.
0°
@
6" Hg.
21° @ 14.5" Hg.
0°
@
6" Hg.
21° @ 14.5" Hg.
0w @ 6" Hg.
21° @ 14.5" Hg.
0° @ 6" Hg.
21° @ 14.5" Hg.
0° @ 8" Hg.
15°
@
15.5" Hg.
0° @ 8" Hg.
15° @ 15.5" Hg.
0°
@
8" Hg.
15 (8! 15 5" Hff
0" @ 8" Hg.
15° @ 15.5" Hg.
0" @ 8" Hg.
15°
@
15.5" Hg.
0" @ 6" Hg.
15° @ 12" Hg.
0"
@
6" Hg.
15°
@
12" Hg.
0" @ 6" Hg.
15°
@
12" Hg.
0" @ 4" Hg.
16° @ 7" Hg.
0°
@
10"
Hg.
15° @ 17" Hg.
0° @ 8" Hg.
15° @ 15.5" Hg.
0° @ 7" Hg.
12°
@
12" Hg.
0u @ 7" Hg.
12° @ 12" Hg.
0u @ 8" Hg.
15 @ 15.5" Hg.
0w @ 4" Hg.
16°
@
7" Hg.
0u @ 7" Hg.
12° @ 12" Hg.
Point
Dwell
Setting
31-34°
31-34°
31-34"
31-34°
31-34"
28-32°
28-32"
28-32°
28-32°
28-32w
28-32°
28-32°
28-32°
28-32"
28-32w
28-32"
28-32"
"
28-32"
Ignition
Timing
BTDC
at
Engine
Idle
4°
4°
(2° w/K-19 &
Man.
Tran.)
4°
4°
4°
TDC
8*
6°
6W
4°
ATDC
10°
10"
4°
4"
4"
4U
5°
10"
4W
Engine Idle
Setting
(RPM)
Trans.
Manual
Auta
Manual
Auto.
Manual
Auta
Manual
Auta
Manual
Auta
Manual
Auto.
Manual
Manual
Auto.
Manual
Auto.
Manual
Auta
Manual
Auta
Auta
Manual
Manual
Manual
Auto.
Manual
Auto.
(L-35)
Auto.
(L-35
& L-36)
Manual
Auto.
Manual
Auta
Manual
Auta
Manual
Manual
Manual
Auta
Manual
Auta
Prod.
500
500
500
500
500
500
500
500
500
500
500
500
500
600
500
500
-
500
500
700
700
500
500
500
500
550
550
550
550
750
700
550
550
A.I.R.
(RPO K-19)
—
700
600
700
500
700
500
600
700
__
600
700
600
700
600
750
750
700
500
700
500
550
-
700
(L-36)
550
(L-36)
750
(L-68)
J500 (Ldi>8L
750
700
700 (L-36)
550 (L-36)
750 (L-68)
600 (L-68)
Original
Equipment
Spark
Plug
AC-46N
AC-46N
AC-46N
AC-46N
AC-46N
AC-45
AC-45
AC-44
AC^4l
AC-44
AC-44
AC-44
AC-44
AC-44
AC-44
AC-43N
AC-43N
AC-43N
AC-43N
AC-44
AC-43N
CHEVROLET CHASSIS SERVICE MANUAL
SPECIFICATIONS
16
COIL
Ignition Coil
Application
Primary Resistance-Ohms
Secondary Resistance-Ohms
Ignition Resistor:
Type
Ohms
L-4 & L-6
1.45-1.63
5600-6900
1.8
V-8 (Non-Transistor)
1.24-1.46
6500-9500
Fixed (In Wiring Harness)
1.8
V-8 (Transistor)
.38-.51
8200-12,400
.43 & .68
CHEVROLET CHASSIS SERVICE MANUAL
SPECIFICATIONS 25
BODY AND CHASSIS ELECTRICAL
SECTION
12
LAMP USAGE
CANDLE
POWER
BULB
NUMBER
Headlamp Unit
Chevrolet, Chevelle & Corvette
Outer - High Beam
Outer - Low Beam
Inner -• High Beam only
Chevy H
High Beam . .
Low Beam
Parking Lamp and Directional Signal
All Exc. Camaro
Camaro
Tail, Stop and Directional Signal (Exc. Bel Air)
Backing Lamp ••...,
Instrument Illumination Lamps
Chevrolet & Camaro ,
Chevelle and Chevy n
Corvette
Temperature Indicator
Chevrolet & Camaro
Chevelle and Chevy II .............
Oil Pressure Indicator
Chevrolet & Camaro .............
Chevelle and Chevy II
Generator Indicator
Chevrolet & Camaro .
Chevelle and Chevy n ,
Hi-Beam Indicator
Chevrolet & Camaro <
Chevelle and Chevy II
Corvette , . • . ,
Directional Indicator
Chevrolet & Camaro
Chevelle & Chevy II . .
Corvette . .
Cigarette Lighter Lamp
Corvette .
Ignition Lock Lamp
Chevrolet . . .
Corvette . . .
Heater or A/C Control Panel
Chevrolet, Chevelle, Chevy n & Camaro . . .
Corvette . . .
Glove Box Lamps
Chevrolet, Chevelle, Chevy n & Camaro . . .
Corvette . . . . .
Dome and Courtesy Lamps
Cartridge Type (AU)
Bayonet Type (Exc. Corvette) . . .
Corvette ,
Convertible . .
37 1/2 Watts
55 Watts
37 1/2 Watts
55 Watts
45 Watts
4-32
4-32
4-32
Special Fiber
1
2
3
2
3
12
6
6
6
Optic
4002
4002
4001
6012
1157
1034-A
1157
1156
194
1895
.
1816
194
1895
194
1895
194
1895
194
1895
1445
194
1895
1816
1445
Wiring
1445
1895
1893
1895
1893
211
89,
212
90
631
CHEVROLET CHASSIS SERVICE MANUAL