LUBRICATION 0-13
LUBRICATION
INDEX
Page
Engine Crankcase Oil . 0-13
Crankcase Capacities. . 0-13
Lubrication . ,
•
o-13
SAE Viscosity Oils 0-13
Types of Oils 0-14
Maintaining Oil Level 0-14
Oil and Filter Change Intervals 0-14
Oil.
. . ...:.. 0-14
Filter o-14
Crankcase Dilution . 0-14
Automatic Control Devices to Minimize
Crankcase Dilution 0-14
Crankcase Breather Cap 0-14
Crankcase Ventilation System 0-15
Valve Type 0-15
Fuel Filter 0-15
Air Cleaner . 0-15
Polyurethane Type 0-15
Oil Wetted Paper Element Type 0-15
Battery Terminal Washers 0-15
Page
Distributor 0-15
Rear Axle and 3-Speed and Overdrive
4-Speed Transmission 0-15
Recommended Lubricants 0-15
Multi-Purpose Gear Lubricants 0-15
Lubricant Additions 0-15
Lubricant Changes 0-15
Powerglide Transmission 0-15
Turbo Hydra-Matic 0-16
Front Wheel Bearings 0-16
Manual Steering Gear . . . . 0-16
Power Steering 0-16
Air Conditioning 0-16
Brake Master Cylinder. 0-16
Parking Brake 0-16
Clutch Cross-Shaft , 0-16
Chassis Lubrication 0-16
Lubrication Diagrams . . 0-19
Body Lubrication (Chevrolet, Chevelle, Chevy n, Camaro). 0-20
Body Lubrication Points (Corvette) . 0-21
The selection of the proper lubricant and its correct
application at regular intervals does much to increase the
life and operation of all moving parts of the vehicle.
Consequently, it is important that the correct grade of
oil or grease, as noted in the following pages, be used.
ENGINE CRANKCASE OIL
Crankcase Capacity
4 Cylinder 4 qt.
6 Cylinder 4 qt.
8 Cylinder (283) 4 qt.
8 Cylinder (327) 4 qt.
8 Cylinder (350) 4 qt.
8 Cylinder (396) 4 qt.
8 Cylinder (427) Chevrolet 4 qt.
8 Cylinder (427) Corvette 5 qt.
For 4 Cyl. Add .5 qt. with filter change;
1 qt. for 6 and 8 Cyl. engines.
Lubrication
Crankcase oil should be selected to give the best per-
formance under the climatic and driving conditions in the
territory in which the vehicle is driven.
During warm or hot weather, an oil which will provide
adequate lubrication under high operating temperatures
is required.
During the colder months of the year* an oil which will
permit easy starting at the lowest atmospheric tempera-
ture likely to be encountered, should be used.
When the crankcase is drained and refilled, the crank-
case oil should be selected, not on the basis of the exist-
ing temperature at the time of the change, but on the
lowest temperature anticipated for the period during
which the oil is to be used.
Unless the crankcase oil is selected on the basis of
viscosity or fluidity of the anticipated temperature, dif-
ficulty in starting will be experienced at each sudden
drop in temperature.
SAE Viscosity Oils
SAE Viscosity Numbers indicate only the viscosity or
body of the oil, that is, whether an oil is a light or a
heavy body oil, and do not consider or include other
properties or quality factors.
The lower SAE Viscosity Numbers, such as SAE 5W
and SAE 10W which represent the light body oils, are
recommended for use during cold weather to provide
easy starting and instant lubrication. The higher SAE
Viscosity Numbers such as SAE 20 and SAE 20W, which
represents heavier body oils, are recommended for use
during warm or hot weather to provide improved oil
economy and adequate lubrication under high operating
temperatures.
Oils are available which are designed to combine the
easy starting characteristics of the lower SAE Viscosity
Number with the warm weather operating characteristics
of the higher SAE Viscosity Number. These are termed
"multi-viscosity oils," SAE 5-10W, SAE 5W-20, SAE
10W-20W, and SAE 10W-30.
The following chart will serve as a guide for the
selection of the correct SAE Viscosity Number for use
under different atmospheric temperature ranges, and
suggests the appropriate SAE Viscosity Numbers when
multi-viscosity oils are used.
Lowest Anticipated
Temperature
During Time
Oil Will Be
in Crankcase
32°F.
0°F.
Below 0°F.
Recommended
SAE Viscosity
Oils
SAE 20 or 20W
SAE 10W
SAE 5W
Recommended
SAE
Multi-
Viscosity
Oils
SAE 10W-30 .
SAE 10W-30
SAE 5W-20
SAE 30 or 10W-30 is recommended when most of the
driving is at high speeds and/or at temperatures above
90
°F.
CHEVROLET CHASSIS SERVICE MANUAL
LUBRICATION 0-15
CRANKCASE VENTILATION VALVE
VALVE TYPE
NOTE: Under prolonged dusty driving condi-
tions,
it is recommended that these operations
be performed more often. Every 12,000 miles
or 12 months the valve should be replaced.
Connecting hoses, fittings, flame arrestor and
crankcase breather cap (where used) should be
cleaned. At every oil change the system should
be tested for proper function and serviced, if
necessary.
FUEL FILTER
Replace filter element located in carburetor inlet if
flooding occurs, if engine surges during constant speed
operation (pulsating effect) or if poor performance is
experienced during acceleration or at higher speeds.
AIR CLEANER
NOTE: Under prolonged dusty driving condi-
tions,
it is recommended that these operations
be performed more often.
POLYURETHANE TYPE-
Every 12,000 miles clean element in solvent, squeeze
out solvent, then soak in engine oil and squeeze out
excess.
OIL WETTED PAPER ELEMENT TYPE-
First 12,000 miles inspect or test element; if satis-
factory, re-use element but recheck every 6,000 miles
until replaced. Element must not be washed, oiled,
tapped or cleaned with an air hose.
BATTERY TERMINAL WASHERS
Battery terminals have felt washers between top of
case and cable connections to minimize corrosive action
of battery acid. These felt washers should be saturated
with engine oil every 6,000 miles.
DISTRIBUTOR
4 and 6-Cylinder Engine—Remove distributor cap and
rotate lubricator 1/2 turn at 12,000 mile intervals. Re-
place at 24,000 mile intervals.
8-Cylinder Engine—Change cam lubricator end for end
at 12,000 mile intervals. Replace at 24,000 mile
intervals.
REAR AXLE AND 3-SPEED AND
OVERDRIVE, 4-SPEED TRANSMISSIONS
The passenger car operates under the most severe
lubrication conditions at high speed and requires a hypoid
lubricant which will meet this condition.
Recommended Lubricants
Standard Rear Axles—SAE 90 "Multi-Purpose" gear
lubricant.
Positraction Rear Axles—Use special Positraction
lubricant.
CAUTION: Straight Mineral Oil gear lubricants
must not be used in hypoid rear axles.
Transmissions—SAE 90 "Multi-Purpose" gear
lubricant.
The SAE 90 viscosity grade is recommended for year
round use. However, when extremely low temperatures
are encountered for protracted periods during the winter
months, the SAE 80 viscosity grade may be used.
"Multi-Purpose" Gear Lubricants
Gear lubricants that will satisfactorily lubricate hypoid
rear axles have been developed and are commonly re-
ferred to as ' 'Multi-Purpose" gear lubricants meeting
U.S.
Army Ord. Spec. MIL-L-2105B.
These lubricants can also be satisfactorily used in
manual transmissions.
CAUTION: With Positraction rear axles use
special Positraction lubricant.
"Multi-Purpose" gear lubricants must be manufac-
tured under carefully controlled conditions and the
lubricant manufacturer must be responsible for the
satisfactory performance of his product. His reputation
is the best indication of quality.
Lubricant Additions
The lubricant level in the axle and transmission hous-
ings should be checked periodically. (Every 6,000 miles.)
It is recommended that any additions required to bring
up the lubricant level be made using the same type lubri-
cant already in the housing.
When checking lubricant level in transmission or rear
axle the unit being cheeked should be at operating
temperature. With unit at operating temperature the
lubricant should be level with bottom of the filler plug
hole.
If the lubricant level is checked with the unit cold
the lubricant level should be 1/2 inch below the filler
plug hole.
Lubricant Changes
The rear axle lubricant does not require changing for
the life of the vehicle. If additions are needed, or when
refilling the axle after service procedures, use lubricants
described above.
POWERGLIDE TRANSMISSION
NOTE: Every 12,000 miles, it is recommended
that the Powerglide low band be adjusted as
specified in Section 7 of this manual.
Every 6,000 miles--Check fluid level on dipstick with
engine idling, selector lever in neutral position, parking
brake set and transmission at operating temperature. If
fluid level is below full mark on dip stick, adding a small
amount of Automatic Transmission Fluid, General Motors
Automatic Transmission Fluid (Part Numbers 1050568-
69,
70) is recommended. If this fluid is not obtainable,
use Automatic Transmission Fluid Type 'A' bearing the
mark AQ-ATF followed by a number and the suffix letter
'A'.
Recheck fluid level on dip stick and again add a
small amount of fluid if needed to bring level to full
mark. DO NOT OVERFILL.
CHEVROLET CHASSIS SERVICE MANUAL
HEATER AND AIR CONDITIONING 1A-42
EXTERNAL
EQUALIZER LINE
Fig. 54—Thermosratic Switch Adjustment
POORLY LOCATED POWER ELEMENT BULB
Normal Pressure.
Poor Cooling.
ENGINE IDLE COMPENSATOR
This additional aid to prevent stalling during prolonged
hot weather periods is included with all air conditioned
vehicles. The idle compensator is a thermostatically
controlled air bleed which supplies additional air to the
idle mixture. On V-8 engines, with factory installed air
Fig. 55—Expansion Valve
conditioning systems, the compensator is located within
the carburetor and is accessible when the engine air
cleaner is removed. On all other vehicles the compen-
sator is threaded into a manifold, fitting below the
carburetor. All compensators are factory set and are
non-adjustable. A malfunctioning unit should be replaced.
NOTE:
If engine idle is erratic, hold the idle
compensator valve closed with a pencil or
wooden dowel while adjusting the idle mixture
screw(s). Never attempt to bend the bimetal
strip or attempt any valve adjustment.
EVACUATING AND CHARGING PROCEDURES
1967 AIR CONDITIONING SYSTEM CAPACITIES
Four-Season Systems (Chevrolet and Chevelle)
Universal System (Chevrolet, Chevelle and Camaro)
Universal and All-Weather System (Chevy II)
Refrigerant Charge
3 lbs., 12 oz.
3 lbs.
2 lbs., 8 oz.
Oil Charge
11 ozs. 525 viscosity
11 ozs. 525 viscosity
11 ozs. 525 viscosity
PURGING THE SYSTEM
In replacing any of the air conditioning components the
system must be completely purged or drained of re-
frigerant. The purpose is to lower the pressure inside
the system so that a component part can be safely
removed.
1.
With engine stopped install high and low pressure
lines of gauge set to the proper high and low pres-
sure gauge fittings (see "Installing Gauge Set to
Check Operation").
2.
With plug removed from the centerline on the gauge
manifold, open high pressure gauge valve and dis-
charge the vapor slowly through the center
connection.
CAUTION: Do
compressor
refrigerant.
not open valves too much or
oil may be discharged with the
A rag wrapped around the end of
the center gauge line will prevent the splashing
of oil in the event of accidental rapid discharge.
CHEVROLET CHASSIS SERVICE MANUAL
HEATER AND AIR CONDITIONING 1A-45
• A very badly leaking compressor seal.
• Collision damage to the system components.
As a quick check on compressor oil charge, with the
engine off, carefully crack open the oil drain plug on the
bottom of the compressor. If oil comes out, the com-
pressor has the required amount of oil To further check
the compressor oil charge, should the above test show
insufficient oil, it is necessary to remove the compressor
from the vehicle, drain and measure the oil.
Checking Compressor Oil Charge
1.
Run the system for 10 minutes at 500-600 engine
rpm with controls set for maximum cooling and
high blower speed.
2.
Turn off engine, discharge the system, remove
compressor from vehicle, place it in a horizontal
position with the drain plug downward. Remove the
drain plug and, tipping the compressor back and
forth and rotating the compressor shaft, drain the
oil into a clean container, measure and discard the
oiL
3.
a. If the quantity drained was 4 fluid oz. or more,
add the same amount of new refrigerant oil to
the replacement compressor.
b.
If the quantity drained was less than 4 fluid oz.,
add 6 fluid oz. of new refrigeration oil to the
replacement compressor.
c. If a new service compressor is being installed,
drain all oil from it and replace only the amount
specified in Steps 3a and 3b above.
d. If a field repaired compressor is being installed,
add an additional 1 fluid oz. to the compressor.
4.
In the event that it is not possible to idle the com-
pressor as outlined in Step 1 to effect oil return to
it, proceed as follows:
a. Remove the compressor, drain, measure and
discard the oil.
b.
If the amount drained is more than 1-1/2 fluid
oz.
and the system shows no signs of a major
leak, add the same amount to the replacement
compressor.
c. If the amount drained is less than 1-1/2 fluid oz.
and the system appears to have lost an excessive
amount of oil add 6 fluid oz. of clean refrigeration
oil to replacement compressor, 7 fluid oz. to a
repaired compressor.
If the oil contains chips or other foreign ma-
terial, replace the receiver-dehydrator and flush
or replace all component parts as necessary. Add
the full specified volume of new refrigeration oil
to the system.
5.
Add additional oil in the following amounts for any
system components being replaced.
Evaporator 3 fluid oz.
Condenser . . . . ... . . . . . . 1 fluid oz.
Receiver-Dehydrator ....... 1 fluid oz.
NOTE: When adding oil to the compressor, it
will be necessary to tilt the rear end of the
compressor up so that the oil will not run out
of the suction and discharge ports. Do not set
the compressor on the shaft end.
Adding Oil to the System
The system should be completely assembled and un-
charged before adding oil. Use only uncontaminated
refrigerant oil (525 viscosity) and add as follows:
1.
Connect the low pressure line from the gauge set
to the low pressure gauge fitting on the P.O.A.
valve (Four-Season) or low pressure fitting on the
compressor connector Mock (Universal System).
2.
Connect the high pressure line from the charging
station gauge set to the compressor muffler or high
pressure side of the connector block.
3.
Disconnect the high pressure line from the gauge set,
make certain that the line is clean, and place the
end in a graduated container.
4.
Pour enough refrigerant oil into the container so
that the required volume may be drawn into the
system by the high pressure hose.
5.
Close the high pressure valve at the gauge set,
and open the low pressure valve.
6. Operate the vacuum pump to drop the pressure within
the system and cause atmospheric pressure to force
oil through the high pressure line into the system.
When the oil level has dropped the required volume,
pull the line out of the oil container and continue
vacuum pump operation to force the oil contained
in the line into the system.
7.
Shut off the vacuum pump and connect ttye high
pressure line to the gauge set. Open the high
pressure valve and evacuate the system through
the high and low pressure sides of the system.
Complete the charging operation as outlined in Step
10 under "Evacuating and Charging System".
COMPONENT REPLACEMENT AND MINOR REPAIRS
REFRIGERANT LINE CONNECTIONS
"O"
Rings
Always replace the "O" ring when a connection has
been opened. When replacing the "O" ring, first dip it
in refrigeration oil. Always use a backing wrench on
"O"
ring fittings to prevent the pipe from twisting and
damaging the "O" ring. Do not overtighten. Correct
torque specifications are as follows:
Metal
Tube
O.D.
1/4
3/8
1/2
5/8
3/4
Thread and
Fitting
Size
7/16
5/8
3/4
7/8
1-1/16
Steel
Tubing
Torque*
13
33
33
33
33
Alum.
Tubing
Torque*
6
12
12
20
25
* Pound Feet
CHEVROLET CHASSIS SERVICE
SPECIFICATIONS
HEATING
AND AIR
CONDITIONING
SECTION
1A
Compressor
Make Frigidaire
Type
. 6
Cylinder Axial
Displacement
Four-Season
12.6
Cu.
In.
Universal
and
Ail-Weather
.... .10.8 Cu. In.
Rotation Clockwise
Compressor Suction
and
Discharge
Connector Bolt Torque
.......
25 ft lbs.
Compressor Clutch Coil
Ohms
(at
80°F.).
4.18-4.38
Amps
(at
80°F.)
2.86 @ 12
Volts
Torques
Rear Head
to
SheU Stud
Nut 23 lb. ft
Shaft Mounting
Nut 15 lb. ft
Belt Tension.
See
Tune-Up Chart
System Capacities
Refrigerant
R-12
Four-Season
and
Comfortron
Systems.
............
3 lbs., 12 oz.
Universal Systems
Chevrolet, Chevelle,
and
Camaro.
... 3 lbs.
Chevy
n 2 lbs. 8 oz.
All-Weather System
2 lbs. 8 oz.
Compressor
Oil 525
Viscosity
All Systems
11 oz.
Fuses
Comfortron Systems
.
Four-Season Systems
.
Universal Systems
. .
All-Weather System.
.
Fuse
Block
25
amp.
25
amp.
25
amp.
25
amp.
In
Line
30
amp.
30
amp.
20
amp.
20
amp.
SECTION
3
WHEEL ALIGNMENT SPECIFICATIONS (Vehicle
dt
Curb Weight)
Caster*
Camber*
Steering Axis
Inclination
tToe-In (Total)
Wheel Bearing
Adjustment
Preload
End Movement
Chevrolet
Pos.
3/4° ± 1/2°
Pos.
1/4° ± 1/2°
7-1/2° ± 1/2°
@l/8"
to 1/4"
12 ft lbs.
zero
.001"
to .008"
Chevelle •
(SS and El Camino)
Neg. 1/2° ± 1/2°
(All others)
Neg. 1° ± 1/2°
Pos.
1/2° ± 1/2°
8-1/4° ± 1/2°
1/8" to 1/4"
12 ft lbs.
zero
.001"
to .008"
Chevy n
Pos.
1° ± 1/2°
Pos.
1/2° ± 1/2°
7° ± 1/2°
1/4" to 3/8"
12 ft lbs.
zero
.000"
to .004"
Corvette
Pos.
1° ± 1/2°
Pos.
3/4° ± 1/2°
7° ± 1/2°
3/16" to 5/16"
12 ft lbs.
zero
.001"
to .008"
Camaro
Pos.
1/2° £ 1/2°
Pos.
1/4° ±1/2°
8 3/4° ± 1/2°
1/8" to 1/4"
12 ft lbs.
zero
.001"
to .008"
•Must not vary more than 1/2° from side to side.
@Toe-In (Total) should be 5/16" to 7/16" after rebuild using new bushings and ball joints.
tAdjust Toe-in with steering gear on straight ahead location after camber and caster have been set Any change
in caster and camber settings will affect toe; always recheck and set toe to specifications.
LET CHASSIS SERVICE MANUAL