1974 CHEVROLET CAMARO radiator

Downloaded from www.Manualslib.com manuals search engine Clock
Reset the clock, if your car is so
equipped, by pulling
out the knob
and turning
the hands clockwise if
slow, counterclockwise if fast. This
will,
if the clock error is five min­
utes
or more, automatically com­
pensate for time gain
or lag. Sev­
eral resettings, several days apart,
may be needed to properly adjust
the clock mechanism. Have your
clock cleaned
and oiled by a com­
petent clock serviceman at least
every two years.
Cigarette Lighter
The accessory cigarette lighter is
located on the instrument panel
face.
To operate, push it in. When
it becomes heated,
it automatically
pops
out ready for use.
Windshield Wiper
and Washer
The windshield wiping system
operates
at two speeds and is de­
signed to wipe clear designated areas
of the
windshield under most
inclement weather conditions.
The
windshield wipers work electrically
and are not affected by engine op­
eration.
Push the control lever to the
right to
start the electric windshield
wiper .
The two-speed electric wiper
has both a
"low" and a "high" speed
po sition.
Pressing the control will send a
measured amount of water
or other
cleaning agent onto the windshield
and will also cause the wiper lever
to move, thus starting the wiper .
motor. The wiper will then con­
tinue to operate until manually
turned off at the wiper lever.-
Fill the washer
jar only % full
during the winter to allow for ex­
pansion if the temperature should
fall low enough to freeze the so­
lution.
• Check washer fluid level regu­
larly-do it frequently when the
weather is bad.
28
• Use fluid such as GM
OPTIKLEEN to preventfreez­
ingdamage, and to provide bet­
ter cleaning.
• Do not use radiator anti-freeze in
windshield washer; it could
cause paint damage.
• In cold weather, warm the wind­
shield with defrosters before us­
ing
washer-to help prevent ic­
ing that may seriously obscure
vision.
Ventilation System
Your Camaro incorporates a
ventilation system
that provides
ventilation comfort, made possible
by the addition of air vent provi­
sions in the rear body lock pillar.
Another feature of the system
is
continuous low-speed operation of
the air conditioner blower, result­
ing in an uninterrupted supply
of
outside air flow into the car when-

Downloaded from www.Manualslib.com manuals search engine "HOT" MARK
"COLD" MARK
>-f.. __ "AOO"
If at operating temperature (ap­
proximately
150° F-hot to the
touch), fluid should be between
"HOT" and "COLD" marks. If at
room temperature (approximately
70° F), fluid should be between
"ADD" and "COLD" marks. Fluid
does not require periodic changing.
Hood Latches
Every 4 months or 6,000 miles,
. whichever occurs first, lubricate
hood latch assembly and hood
hinge assembly
as follows:
1. Wipe off any accumulation of
dirt or contamination on latch
parts.
2. Apply Lubriplate or equivalent
to latch pilot bolts and latch
locking plate.
3. Apply light engine oil to all
pivot points in release mecha­
nism,
as well as primary and
secondary latch mechanisms.
4. Lubricate hood hinges.
5. Make hood hinge and latch
mechanism functional check to
assure the assembly
is working
correctly.
Air Conditioning
Have your Chevrolet Dealer
check your Air Conditioning
sys­
tem at some time during the winter
months to
be sure there has been
no loss in cooling output. During
the summer,
see your Chevrolet
Dealer immediately if you suspect
the system
is not performing as it
should.
53
NOTE: On vehicles equipped
with a Four Season Air Condi­
tioning System, the system will not
operate below ambient tempera­
tures of
30°F. regardless of con­
trol position.
Cooling System Care
Check the coolant level at each
engine · oil change.
Engine Cooling System
The recovery type cooling sys­
tem is standard on all Chevrolet
passenger cars and
is designed to
maintain the engine at proper op­
erating temperatures.
The recovery
tank collects coolant that expands
with rising temperature that would
otherwise overflow from the
sys­
tem. When · the system temperature
drops, the coolant
is drawn from
the recovery tank back into the
radiator by the suction created by
coolant contraction. The cooling
system has been filled at the fac-

Downloaded from www.Manualslib.com manuals search engine tory with a high-quality, inhibited,
year-around coolant that meets the
standards of General Motors
Spe­
cification 1899-M. This coolant
solution provides freezing protec­
tion to
-20oP (-35°P in Can­
ada), and it has been formulated to
be used for two full calendar years
or
24,000 miles, whichever first
occurs, of normal operation with­
out replacement, provided the
proper concentration of coolant is
maintained.
Cooling System Care
The radiator cap should not be
removed to check coolant level.
Check the coolant level visually in
the 'see thru' coolant recovery tank
at least
as frequently as engine oil
changes. Level should be at the
"full cold" mark on the recovery
tank when the system
is cold. At
normal operating temperature the
coolant should be at the
"full hot"
mark on the recovery tank. Add sufficient
coolant to the recovery
tank.
Use a 50/50 mixture of high­
quality ethylene glycol antifreeze
and water for coolant additions.
If
regular additions are required, see
your dealer for a cooling system
check.
NOTE: If recommended quality
antifreeze
is used, supplemental in­
hibitors or additives claiming to
provide increased capability are
not necessary. They may be detri­
mental to the efficient operation of
the system, and represent an un­
necessary operating expense.
Every year, the cooling system
should be serviced
as follows:
1. Wash
radiator cap and filler
neck with clean water.
2. Check coolant for proper level
and freeze protection.
3. Pressure test system and radia-
54
tor cap for proper pressure hold­
ing capacity (15 psi) .
If re­
placement of cap
is required, use
the special AC cap designed for
coolant recovery systems, speci­
fied for your model.
4. Tighten hose clamps and inspect
all hoses. Replace hoses when­
ever swollen, checked or other­
wise deteriorated.
5. Clean frontal area of radiator
core and air conditioning con­
denser.
Replace hoses every 24 months
or 24,000 miles or earlier if
checked, swollen or otherwise de­
teriorated. Every two years
or 24,-
000 miles, whichever first occurs,
the cooling system should be
flushed and refilled using the fol­
lowing recommended procedure:
1. Remove radiator cap when
engine is cool by:
• Slowly rotating cap counter-

Downloaded from www.Manualslib.com manuals search engine clockwise to detent (do not
press down while rotating).
• Wait until any residual pres­
sure (indicated by a hissing
sound)
is relieved.
• After all hissing ceases, press
down on cap while continuing
to rotate counterclockwise.
CAUTION: To ,a~()/d' thedange, .• olbfling "l)~ned;tlo n(Jtl'entoveradiator «aP while
, engipe and radiator are ,stlll hot because $ca/ding ' flU./d·antlsteam' will be blown .
(1utunder pressure.
2. If necessary, run engine, with
radiator cap removed, until nor­
mal operating temperature
is
reached and upper radiator hose
is hot (indicates thermostat
is
open).
3. Stop engine and open radiator
drain valve to drain coolant. (To
speed this operation, the drain
plugs in the block can also be
removed.) 4.
Close valve (install block drain
plugs, if removed) and add suf­
ficient water to
fill system .
5. Run engine, drain and refill the
system, as described in steps
1,
2, 3, and 4, a sufficient number
of times until the drained liquid
is nearly colorless.
6. Allow system to drain com­
pletely and then close radiator
drain valve tightly. (Install
block drain plugs, if removed.)
7. Remove recovery cap leaving
hoses in place. Remove coolant
recovery tank and empty of
fluid. Flush tank with clean
water , drain and reinstall.
8. Add sufficient ethylene glycol
coolant , meeting GM specifica­
tion 1899-M, to provide the re­
quired freezing and corrosion
protection-at least a 44 percent
solution
(-20°F). Fill radiator
to the base of the radiator filler
55
neck and add sufficient coolant
to the recovery tank to raise level
to the
"FULL HOT" mark. Re­
install recovery tank cap.
9. Run engine , with radiator cap
removed, until normal operat­
ing
temperature is reached.
(Radiator upper hose becomes
hot.)
10. With engine idling, add cool­
ant until level reaches bottom
of filler neck and install radia­
tor cap making certain arrows
line up with overflow tube.
It is the owner's responsibility
to keep the freeze protection at a
level commensurate with the tem­
peratures which may occur in the
area of vehicle operation .
• Maintain cooling system freeze
protection at
-20 °F or below
to ensure protection against cor­
rosion and loss of coolant from
boiling even though freezing

Downloaded from www.Manualslib.com manuals search engine temperatures are not expected.
• Add ethylene glycol base coolant
that meets GM Specification
1899-M when coolant additions
are required because of coolant
loss or to provide additional pro­
tection against freezing at tem­
peratures lower than
-20°F
(-35°F in Canada).
NOTE: Alcohol or methanol base
coolants or plain water are not
recommended for your Camaro at
any time.
Radi~tor Pressure Cap
The radiator cap, a 15 lb. pres­
sure type, must be installed tightly,
9therwise coolant may be lost and
damage to engine may result from
overheating.
Radiator pressure
caps should be checked periodi­
cally for proper operation.
If re­
placement
is required specify AC.
Thermostat
The cooling system is protected
and controlled by a thermostat in­
stalled in the engine coolant outlet
to maintain a satisfactory operat­
ing temperature of the engine. This
Tires
NOTE: The factory installed tires
on your car are either bias-belted thermostat
is designed
for continu­
ous
. use through both winter and
summer and need not be changed
seasonally. When replacement
is
necessary, Delco parts are recom­
mended.
or optional steel-belted radial tires.
Additional owner information about
steel-belted radial tires
is contained
in the special steel-belted radial tire
guarantee booklet.
CAMARO TIRE USAGE
ENGINE & BODY STANDARD OPTIONAL
All (Except E78 x 14 E78 x 14, F78 x 14 Space Saver Spare
Type LTand Z28) F70 x 14 White Stripe or White Letters
F78 x 14 Whitewall or White Letters
Type
LT FR78 x 14 F78 x 14 Space Saver Spare F70 x 14 White Stripe or White Letters
FR78 x 14 Whitewall or White Letters
Z28 F60 x 15 White Letters F78 x 14 Space Saver Spare
All standard tires are blackwall with whitewall optional. All tires are bias-belted load range B unless otherwise specified. '
56

Downloaded from www.Manualslib.com manuals search engine as each spark plug cable for
tightness.
(K) If the co r will still not sta rt, check for spark at the spark plugs in the following manner:
Pull one of the spark plug
wires off its spark plug. Insert a
short piece of bare wire (such as a bobby pin) between the rubber
cup
at the end of the spark plug
wire
and the tubular metal con­nector inside of it. If the spark
plug wire is wet or oily, wipe it Checking Spark
dry. Wrap a dry handkerchief or facial tissue, folded several
thicknesses, around the wire at least three inches back from the
end and grasp the wire at this point. Hold the bare wire about 1f ..
inch from the bare tip of the spark plug from which you removed the
wire. When the engine is "turned over" a spark should jump across
the
~ inch space, indicating ample current supply. If no spark
jumps, the difficulty
is probably caused by a defective ignition part
and should be corrected by your Authorized Chevrolet Dealer.
COOLING SYSTEM
When the car will run but evidences serious overheating on the
temperature gauge in the instrument panel, there are several items
which may be checked.
(L) Engine overheating will occur whim the OIL LEVEL falls danger­ously low. Check the oil level as a matter of course.
69
(M) Low COOLANT LEVEL will, of co~rse, cause engine over­
heating. Determine the cause of the low coolant level and have
it corrected if necessary.
(N) Check the RADIATOR CORE. Clean it if it is plugged with
bugs, leaves or other foreign material.
(0) Condition of the FAN BELT is very impartant, not only for en­gine cooling but also for proper generator operation. Check the
condition of the belt. Replace it if it is worn or frayed. Loosen the generator toward the engine to remove and replace the belt. Tighten the belt, whether new or old, by loosening the generator bolts, prying with a bar on the generator until the belt is ten­sioned properly, then retighten
the generator bolts.
(P) Another cause of engine
overheating may be an inopera­
tive COOLING SYSTEM THERMO­STAT. If the thermostat should fail in the closed position, it will not
permit coolant to circulate through
the system. In such on emergency
the thermostat may be removed but should be replaced with a
properly functioning thermostat
as soon as possible.
Fan 8e/f Tension
ThermoS/of Insfallafion

Downloaded from www.Manualslib.com manuals search engine SPECIFICATIONS (Cont'd)
Cooling System: 250 L-6 350 V-8
U.S. Measure (qts.)
12.5 15.5"
Imperial Measure (qts.)
10.5 13·
·with air condo add 1 qt. U.S. measure (3A qt. ,Imperial meas.)
Thermostat
All engines (Exc. RPO L-82, Z28) .................. 1950
RPO L-82, Z28 ................... ~ . . ..... 1800
Radiator Pressure Cap ......................... 15 lb.
71
Air Conditioning System
Compressor oil (525 vis.) ....................... 11 oz.
Refrigerant-R-1 2
Four
Seasons. . . . . . . . . . . . . . . . . . . . . . . .. 3 lb. 12 oz.
Turbo Hydramatic U.S. Measure
350............. ....................... 10.0 qts. 400. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.0 qts.
TURN SIGNAL FLASHER:
Imperial Measure 8.25 qts. 9.25 qts.
Type .................................... Capacity
All .................................. 2 lamp (LL)
Hazard Warning Flasher, All .................. 4 lamp
TIRE INFORMATION:
Complete tire information will be found on pages 56, 57, 58, 59,60,61,62 and 63.
I

Downloaded from www.Manualslib.com manuals search engine ENGINE SPECIFICATIONS
6 Cyl. Engine 8 Cylinder Engine CARBURETOR 250 Cu. In. 350 Cu. In.
ENGINE DATA
1 Barrel 2 Barrel 4 Barrel
Camp. Ratio 8.5:1
Bore 3.875
Stroke 3.56
Firing
Order 1·5·3·6-2-4
FUSES AND CIRCUIT BREAKERS
The wiring circuits in your 1974 Camaro
are protected from short circuits by a combi­
nation of fuses, circuit breakers, and fusible
thermal
linkS in the wiring itself. This greatly
reduces the hazard of electrically caused fires
in the automobile. The fuse junction block
is
located under the left side of the instrument
panel.
SPARK PLUGS
The
following spark plugs are recommended for Camaro engines.
Normal Service (Original Equip.)
L-G Engines I AC Type R-4GT
All
350 V-8 Engines I AC TypeR-44T
72
8.5:1
4.00
3.48
1-8-4-3-6-5-7-2
ITEM
Engine Oil Filter
Radiator Cap
Gasoline Cap 4
Barrel
9.0:1
USAGE RECOMMENDATION
All AC Type PF25
All
AC Type RC-33
All
AC Type GT-85