oil temperature CHEVROLET CORVAIR 1986 2.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine ENGINE OIL REQUIREMENTS
Engine Oil Recommendations
Use only "first line" oils which, according to the
label on the can, are (1) intended for service MS, and
(2) pass car makers' tests
(including
General Motors
Standard GM 6041-M. The
oil
change interval, as rec­
ommended in this section on
oils,
is based on the regular
use of oil of this quality of
engine oil. The majority of
the suitable oils currently
available are multi-viscosity
(e.g., 10W-30) products.
NOTE: Non-detergent and
other low quality oils are
specifically not recommended. The use of proper engine
oils and oil change intervals are your best assurance of
continued reliability and performance from your Corvair
engine.
The use of "break-in" oils, "tune-up" compounds,
"frictIon-reducing" compounds, etc., in your Corvair
engine are not recommended. However, there are
additive supplements available that can be helpful
under certain conditIons. For example, if higher deter­
gency is required to reduce varnish and sludge deposits,
a thoroughly tested
and approved concentrate-"High
Detergency Concentrate" * -is available at your Corvair 'or "Engine Oil Supplement"'
33
dealer who can advise you regarding its use.
NOTE: When checking or adding oil, be care­
ful to avoid spilling or dropping oil onto the
engine shrouding .
Recommended Oil Viscosity: The following chart will
serve
as a guide in selecting the proper oil viscosity.
The
proper viscosity helps assure good cold starting
by reducing friction and thus increasing cranking speed.
ANTICIPATED RECOMMENDED SAE VISCOSITY OIL
TEMP. SINGLE VISCOSITY MULTI-VISCOSITY Above Freezing (+32° F.) SAE-20W SAE-10W-30 Below Freezing and Above 0° F. SAE-10W SAE-10W-30 Below 0° F. SAE-5W SAE-5W-20
NOTE: When changing oi/ consider the anticipoted temperatures for the next 4 months.
SAE 5W and 5W·20 oils are not recommended for sustained high speed driving.
SAE 30 and SAE· 20W-40 oils may be used at temperatures above 90°F. SAE 5W-30 oils may be used at temperatures be/ow 32°F . SAE IOW-40 oils may be used at temperatures between 0 and 90~F.
Checking Oil Level: The engine oil should be main­
tained at proper level. The best time to check it is
before operating the engine or as the last step in a
fuel stop.
This will allow the oil accumulation in the
engine to drain back to the crankcase. To ch~eck the

Downloaded from www.Manualslib.com manuals search engine every 6000 miles. This interval applies to the initial
change as well as subsequent oil changes. The oil
change interval for your Corvair engine is based on the
use
of oils that meet the requirements indicated in the
section on
"Engine Oil Recommendations". Oil change
intervals longer than 4 months or 6,000 miles will result
in serious reductions in engine life and may effect Chev­
rolet's
obligation under the provisions of the New Vehicle Warranty.
Certain atmospheric and/or driving conditions includ­
ing
prolonged operations at sub-zero temperatures or
under extremely dusty conditions, frequent trailer haul­
ing, and extensive idling necessitate more frequent oil
and filter changes. * Operation in dust storms may require
an immediate change of both oil and filter. See your
Chevrolet dealer for advice on frequency of oil and
filter changes because of unusual driving conditions.
A high
quality MS oil meeting General Motors
Standard GM 6041-M was installed in your engine at
the factory. It is not necessary to change this factory­
installed oil
prior to the recommended normal change
period. However, the oil level should be checked more
frequently during
the break-in period since somewhat
higher oil consumption is normal until the piston rings
become seated.
*In many such situations, oil change intervals should not exceed 2
months, or 3000 miles, whichever occurs first, and similarly, filter changes should not exceed 4 months or 6000 miles, whichever comes
first.
39
OIL FILTER
Replace filter of first oil change and at every second
oil change thereafter. This recommendation is based on
the use of engine oil which meets the requirements indi­
cated in the section on "Engine Oil Recommendations,"
and the use of the applicable AC. or equivalent quality replacement oil filter.
TRANSMISSION-3 AND 4-SPEED
The manual transmission and the rear axle have' a
common
oil sump. Provisions for checking and main­
taining lubricant level are provided on each unit.
Follow recommendations given
under "Rear Axle"
on page 41 for inspection intervals and type of trans­
mission lubricant.

Downloaded from www.Manualslib.com manuals search engine TRANSMISSION CONTROL LlNKAGE-
3 AND 4-SPEED
Every 12,000 miles-Lubricate connector (indicated in the
illustration below) with
water resistant EP chassis
grease which meets General Motors Specification
#GM6031M.
. Every 12,000 miles-Remove tunnel cover under vehicle
and lubricate gearshift lever ball and socket with
Lubriplate.
TRANSMISSION-POWERGLIDE
Every 24,000 miles, more frequently depending on
engine idling, selector lever in neutral position,
parking brake set and transmission at operating
temperature. If fluid level is below full mark on
dipstick, add small amount of automatic transmis­
sion fluid. Recheck fluid level and again add a
small
amount of fluid if needed to bring level to
full mark. DO NOT OVERFILL
General Motors DEXRON Automatic Transmission
Fluid,
Part numbers 1050568, 1050569, 1050570
which has been especially formulated and tested for
40
use in your automatic transmission is recommended.
Other Automatic Transmission Fluids identified with
the mark
DEXRON are also recommended.
Every 24,000 miles, more frequently depending on
severity of service if vehicle is used to pull trailers,
carry full loads during high ambient temperatures,
operate in mountainous terrain or operate under
other severe
conditions-remove fluid from drain
plug hole and add approximately two (2) quarts
U. S. Measure, (1 % quarts Imperial Measure) of fresh
fluid.
Operate transmission thr'ough all shift ranges
and recheck fluid level as described above.
It is not necessary to remove the pan because a
drain plug is provided .
Lubricate shift linkage with
water resistant EP chassis
grease which meets General Motors Specification
#GM 6031M.
NOTE: From the "Add Oil" mark to the "Full"
mark on the dipstick indicates a difference of
only 1 pint of fluid.

Downloaded from www.Manualslib.com manuals search engine AIR CLEANER
CAUTION: In addition to its function of filtering air
drawn into
the engine through the carburetor, the air
cleaner also acts as
a flame arrester in the event the
engine backfires. Because backfiring
may cause fire in
the engine compartment, the air cleaner should be in­
stalled at all times unless its removal is necessary for
repair or maintenance services.
Paper Element Type
The oil-wetted paper element is a long-life efficient air
cleaner and should not require replacement before
24,000 miles except under extreme adverse condi­
tions .
Inspect air cleaner at 12,000 miles for dust leaks,
holes
or other damage, replace if necessary . If
condition is satisfactory, rotate element 1800 from
originally installed position. Replace
at 24,000 miles.
Under extreme
adverse conditions inspect every 6,000 miles.
Oil Bath Type
Every 12,000 miles-Inspect and clean if necessary.
Refill with SAE 50 engine oil when lowest anticipated
temperature is above freezing; use SAE 20 if below
freezing.
BATTERY (ENERGIZER)
Every 6,000 miles-Clean and oil battery terminals and
oil felt washer. Check fluid level frequently. Keep
filled with distilled water to level of split ring in
42
vent tube. The electrolyte level indicator in the cap
of one cell will glow if the fluid level is low. In this
case each cell should be checked.
CAUTION: Since normal battery or Energizer
chemical action generates hydrogen gas which
is highly explosive when mixed with air, never
expose the battery to an open flame or electric
spark. Also, avoid getting battery fluid, which
is a sulfuric acid solution, on skin, on clothing
or other fabrics, or on painted surfaces . Eye
protection should
be worn while working on the
battery for
any reason.
DISTRIBUTOR CAM
LUBRICATOR
Every 12,000 miles­
Rotate cam lubricator
180 degrees.
Replace lubricator at
24,000 mile intervals.
The cam lubricator should
not
be oiled; damage to
ignition points may result
if
proper lubricant is not
used
on cam. 8RE,AKEIt PlATE ATTACHtNG SCREWS

Downloaded from www.Manualslib.com manuals search engine cup at the end of the spark plug
wire
and the tubular metal con­
nector inside of it. If the spark
plug wire is wet or oily, wipe it
dry.
Wrap a dry handkerchief or
facial tissue, folded several thick­
nesss, around the wire at least
three inches back from the end
and grasp wire at this point.
Hold the
bare wire about V4 inch
from the bare tip of the spark
plug from which you removed the
wire. When the engine is "turned Checking for Spork
over" a spark should jump across the V4 inch space, indicating
ample current supply.
If no spark jumps, the difflcultyis 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 checkd.
(L) Engine overheating will occur when the OIL LEVEL falls
dangerously low.
Check the oil level as a matter of course.
CAUTION: Never drive the car when the TEMP-PRESS indicator in
the instrument panel is lighted.
49
1M) Check the air intake louvers. Clean them if they are plugged
with leaves
or other foreign material.
IN) Condition of the FAN BELT
is very important, not only for en­
gine cooling but also for proper
generator operation. Check the
condition of the belt. Replace
it
if it is worn or frayed. Loosen the
idler
bracket bolts and move
the
bracket toward the engine
to remove and replace the belt.
Tighten the belt, whether new
or
old, by loosening the idler bracket
nuts, prying with a bar on the Checking Fan Be" Tension
bracket until the belt is tensioned properly, then retighten the
bracket bolts. Proper belt tension is such that, when belt is de­
flected downward with moderate thumb pressure at a point midway
between the
generator and fan pulleys, the belt will deflect about
:Va" to K6". Do not overtighten the belt.
(0) Another cause of engine overheating may be an inoperative
COOLING SYSTEM THERMOSTAT. If the thermostat should fail
in the closed position, it will not permit air to circulate through the
engine.
See your Authorized Chevrolet Dealer.