ELECTRICAL-BODY
AND
CHASSIS
12-26
•
Low oil
pressure
• High engine temperature
• Defective wiring
or
switch
connector from sender
in block above starter
on
and
at
left front
of
distributor
on V-8
Sending Unit Replacement
1.
Disconnect wiring harness
unit terminal (located
L-6 engines
engines).
2.
Remove sender unit using Tool J-21757
or 12
point
socket, replace with
new
unit
and
check operation.
GENERATOR INDICATOR
1.
Ignition
on,
Engine
not
Running
and
Telltale Light
Off.
• Indicator bulb burned out, replace bulb.
• Open circuit
or
loose connection
in the
telltale
light circuit.
2.
telltale Light Stays
on
after Engine
is
Started.
If indicator light does
not go out at
engine idle
speed, refer
to
Charging Systems under Engine
Electrical, Section
6Y.
TEMPERATURE (COOLING SYSTEM) INDICATOR
The temperature indicator circuit consists
of two re-
motely located units, indicator gauge
and
engine sender
unit.
The
indicator gauge, located
in the
instrument
panel, consists
of a
red light which will indicate
an
over-
heated engine condition.
Engine Sender Unit Replacement
1.
Drain engine cooling system
to a
level below unit.
2.
Remove sender unit (located
in the
inlet manifold
near water pump housing
on V-8
engines and
in the
cylinder head near
an
exhaust port
oh L-6
engines)
and replace with new unit.
3.
Refill cooling system
and
check operation
of
unit.
CHEVELLE INSTRUMENTS AND GAUGES
INDEX
Page
General Description
* *
i2-26
Service Operations
12-26
Instrument Panel
12-26
Instrument Cluster.
12-26
Fuel Gauge and/or Ammeter
12-27
Clock,
i 12-27
Speedometer
12-27
Page
Speedometer Cable
.
. 12-27
Temperature Gauge
12-29
Oil Pressure Gauge
12-29
Indicator Lights.
. 12-29
Oil Pressure Indicator
12-29
Generator Indicator
. . 12-29
• Temperature Indicator
12-29
GENERAL DESCRIPTION
The Chevelle instrument cluster assembly consists
of:
a speedometer;
a
fuel gauge;
a
generator,
an
engine
tem-
perature and an
oil
pressure indicator lamp, and includes
a clock
on
deluxe models.
On
super sport models,
am-
meter, coolant temperature
and oil
pressure gauges
re-
place
the
appropriate indicator lights. Except
for the
speedometer,
all of the
indicator lamps, instruments
and
gauges
of
these clusters may
be
serviced without remov-
ing
the
instrument cluster assembly from
the
vehicle.
In addition
to the
instrument indicator lamps,
a
brake
warning lamp
is
included
in the
cluster
as
standard
equipment.
The
indicator
is
connected
to the
parking
brake
and
brake pressure differential switches
and
serves
a
dual function.
It
lights when the parking brake
is applied
and
also when
the
brake pedal
is
applied,
if a
malfunction should occur
in the
brake system
due to a
loss
of
hydraulic pressure. Servicing
of the
hydraulic
pressure differential switch
is
covered
in
Section
5 of
this manual.
Regular maintenance
is not
required on the instrument
cjLuster
or its
components other than maintaining dean
and tight electrical connections, replacing defective parts
and keeping
the
speedometer cable properly lubricated.
SERVICE OPERATIONS
INSTRUMENT PANEL ASSEMBLY
INSTRUMENT CLUSTER (Figs.
41
thru
44)
Removal
1.
Disconnect battery ground cable.
2.
Remove steering coupling bolt and disconnect steer-
ing shaft from coupling.
3.
Loosen mast jacket lower clamp.
4.
Remove
air
conditioning center distributor duct
(if
so equipped).
5. Remove radio rear support bracket screw.
6. Remove mast jacket upper support clamp and retain-
ing bolts from lower support (refer
to
Section
9,
Steering).
CAUTION: Cover mast jacket
and
parl
brake handle with
a
suitable material
to
prevc
scratching.
7.
Disconnect speedometer cable
at
rear
of
cluster
housing
and
speed warning control knob
at
panel
(if
so equipped).
8. Remove instrument panel retaining screws (nine
upper and five lower).
.
9. Working under the console remove four lower retain-
ing screws from instrument cluster housing.
10.
Pull instrument panel assembly from console and
lay
forward on mast jacket.
11.
Disconnect wiring harness, cluster lamps and wiring
CHEVROLET CHASSIS SERVICE MANUAL
SPECIFICATIONS
21
WHEELS AND TIRES
SECTION 10
CHEVY II
Tire Usage and Recommended Tire Inflation Pressures
Pounds per Square Inch (PSI) Cool
Models
All Models Except
Station Wagon
Station Wagon
Tire
Ply
4 Ply Rating
2 Ply
8 Ply Rating
4 Ply
Tire
Usage
6.95 x 14
6.95 x 14
Standard Inflation Pressure
for all Loads
including Full Rated
1 to 6 passengers
+ 200
lbs. luggage
(1,100 lbs. load)
Front
26**
Rear
26**
1 to 6 passengers
+ 300 lbs. cargo
(1,200 lbs. load)
Front
24
Rear
40
Optional Inflation
Pressure for
Reduced Load
1 to 5 passengers
(750 lbs. load)
Front
24
Rear
24
1 to 5 passengers
(750 lbs. load)
Front
22
Rear
28
•Optional tires are not available.
**Add 2 psi when vehicle is equipped with V-8 engine.
1.
Tire inflation pressures may increase as much as
six (6) pounds per square inch (PSI) when hot.
2.
For continuous high speed operation (over 75
increase tire inflation pressures four (4) pounds per
square inch over the recommended pressures up to
a maximum of 32 pounds per square inch cool for
4-ply rating tires dr 40 pounds per square inch for
8-ply
rating tires. Sustained speeds above 75 MPH
are not recommended when the 4 pounds per square
inch adjustment would require pressures greater
' than the TpaxiTP^Tns stated above.
3.
Cool tire inflation pressure: after vehicle has been
inoperative for three (3) hours or more, or driven
less than one (1) mile.
Hot tire inflation pressure: after vehicle has been
driven ten (10) miles or more at 60-70 MPH.
4.
Station Wagon loads should be distributed as far
forward as possible.
5. Vehicles with luggage racks do not have a load limit
greater than the l,100# load (l,200# load for station
wagons) specified above.
6. When towing trailers, the allowable passenger and
cargo load must be reduced by an amount equal to
the trailer tongue load on the trailer hitch.
CHEVELLE
Tire Usage
Engine and Body Styles
L-6, All styles except Station Wagon
283 V-8, All styles except Station
Wagon, Spt. Sedan and Convertible
283 V-8, Sport Sedan and Convertible
327 V-8 Std., except Sport Sedan
and Convertible
327 V-8 Std., Sport Sedan and
Convertible
327 V-8 H.P., All styles
396 V-8, Pick-Up Delivery
396 V-8, Super Sport Convertible and
2-Door Coupe
All engines, Station Wagon
Standard 14 Inch
With A/C*
7.35
7.75
7.75
7.75
F70
7.75
Without A/C*
7.35
7.35
7.75
7.75
F70
7.75
Optional 14 Inch
With A/C*
7.75
—
-
--
-
7.75
(8-Ply Rating,
4-Ply)
Without A/C*
7.75
7.75
-
—
-
7.75
(8-Ply Rating,
4-Ply)
*A/C (Air Conditioning)
All tires listed are 4-ply rating, 2-ply unless otherwise specified.
CHEVROLET CHASSIS SERVICE MANW
SPECIFICATIONS 23
CAMARO
Tire Usage and Recommended Tire Inflation Pressures
Pounds per Square Inch (PSI) Cool
Models
All Except
Super Sport
Super Sport
1 to 5 passengers
+ 200
lbs. luggage
(950 lbs. load)
Tire Ply
4 Ply Rating-
2 Ply*
Tire Usage
7.35 x 14
D70-14
Standard Inflation Pressure for
all Loads including Full Rated
Front
24**
26
Rear
24**
26
•Optional tires not available.
**Add 2 psi. when vehicle is equipped with 327 V-8
and air conditioning*
1.
Tire inflation pressures may increase as much as
six (6) pounds per square inch (PSI) when hot.
2.
For continuous high speed operation (over 75 MPH)
increase tire inflation pressures four
(4)
pounds per
square inch over the recommended pressures up to
a maximum of 32 pounds per square inch cool for
4-ply rating tires.
3.
Cool tire inflation pressure: after vehicle has been
inoperative for three (3) hours or more, or driven
less than one (1) mile.
Hot tire inflation pressure: after vehicle has been
driven ten (10) miles or more at 60-70 MPH.
4.
Vehicles with luggage racks do not have a load
limit greater than the 950 lbs. load specified above.
5. When towing trailers, the allowable passenger and
cargo load must be reduced by an amount equal to
the trailer tongue load on the trailer hitch.
CORVETTE
Tire Usage and Recommended Tire Inflation Pressures
Pounds per Square Inch (PSI) Cool
Models
All Models
1 to 2 passengers
+150 lbs. luggage
(450 lbs. load)
Tire Ply
4 Ply Rating-
2 Ply*
Tire Usage
7.75-15*
Standard Inflation Pressure for
all Loads including Full Rated
Front
24
Rear
24
•Optional tires are not available.
1.
Tire inflation pressures may increase as much as
six (6) pounds per square inch (PSI) when hot.
2.
For continuous high speed operation (over 75 MPH)
increase tire inflation pressures four
(4)
pounds per
square inch over the recommended pressures up to
a maximum of 32 pounds per square inch cool for
4-ply rating tires.
3.
Cool tire inflation pressure: after vehicle has been
inoperative for three (3) hours or more, or driven
less than one (1) mile.
Hot tire inflation pressure: after vehicle has been
driven ten (10) miles or more at 60-70 MPH.
4.
Vehicles with luggage racks do not have a load limit
greater than the 450# load specified above.
5. When towing trailers, the allowable passenger and
cargo load must be reduced by an amount equal to
the trailer tongue load on the trailer hitch.
CHEVROLET CHASSIS SERVICE MANUAL
SPECIFICATIONS 24
CHEVROLET
Engine and Body Styles
All. Engines, All Styles except
Those Shown Below
427 V-8 Super Sport 2-Door Coupe and
Convertible (Z-24 Option)
All Engines, Station Wagon
Tire
14 Inch
8.25
8.25
8.55
Usage
STANDARD TIRE
15 Inch (With Disc
8.15
G70-15
8.45 (8-Ply Rating,
Brakes)
4-Ply)
OPTIONAL TIRE
14 Inch
8.25 (a-Ply Rating,
4-Ply)
. —. ...
8.55 (8-Ply Rating,4-Ply)
All tires listed are 4-Ply Rating, 2-Ply except where indicated.
Recommended Tire Inflation Pressures—Pounds per Square.Inch (Cool)
' Models
All Models Except Station
Wagons
Station Wagons (Without Disc
Brakes—14" Wheels
Station Wagons (With Disc
Brakes-15" Wheels)
Tire Ply-
4 Ply Rating-2 Ply
8 Ply Rating-4 Ply
4 Ply Raging—2 Ply
8 Ply Rating-4 Ply
8 Ply Rating-4 Ply
Standard Inflation
for All Loads
Including Full Rated
1 to 6 Passengers
+ 200 lbs. luggage
(1100 lbs. load)
Front
24
24
Rear
28
28
1 to 6 passengers (2 Seat)
+ 300 lbs. cargo
or 1 to 8 pass. (3 Seat)
(1200 lbs. load)
Front
22
22
Rear
32
32
1 to 6 passengers (2 Seat)
+ 300 lbs. cargo
or 1 to 8 pass. (3 Seat)
(1200 lbs. load)
Front
22
Rear
34
Optional Inflation
ior
Reduced Loads
1 to 5 passengers
(750 lbs. load)
Front
"24~
24
Rear
24
24
1 to 5 passengers
(750 lbs. load)
Front
22
22
Rear
26
26
1 to 5 passengers
(750 lbs. load)
Front
22
Rear
26
1.
Tire inflation pressures may increase as much as
six (6) pounds per square inch (PSI) when hot
2.
For continuous high speed operation (over 75 MPH)
increase tire inflation pressures four (4) pounds per
square inch .over the recommended pressures up to
a maximum of 32 pounds per square inch cool for
4-ply rating tires or 40 pounds per square inch for
8-ply rating tires. Sustained speeds above 75 MPH
are not recommended when the 4 pounds per square
inch adjustment would require pressures greater
than the maximums stated above.
3.
Cool tire inflation pressure? after vehicle has been
inoperative for three (3) hours or more, or driven
less than one (1) mile.
Hot tire inflation pressure: after vehicle has been
driven ten (10) miles or more at 60-70 MPH.
4.
Station Wagon loads should be distributed as far
forward as possible.
5. Vehicles with luggage racks do not have a load
limit greater than the l,000# loads (l,200# for
Station Wagons) specified in the Tire Inflation
Pressure Table.
6. When towing trailers, the allowable passenger and
cargo load must be reduced by an amount equal to
the trailer tongue load on the trailer hitch.
CHEVROLET CHASSIS SERVICE MANUAL