Chevrolet VEGA 1971 Bedienungsanleitung

-IT-

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INTRODUCTION

Your Vega has many fine features. One of these

a designed-in

ease of service and maintenance. Sooner

later you're going to

want to try your hand at performing some of these maintenance

procedures yourself. This booklet has been prepared especially for

those of you who are new to this kind of undertaking

but

will be of

equal interest

you have had wider mechanical experience. You'll

find all you need to know, written in an easy to follow style giving

needed parts, tools and procedures. The Table of Contents will

locate general areas, the Maintenance Schedule will help you relate

specific procedures to the recommended time and mileage intervals,

and the Index at the rear of the booklet will locate specific items.

We know you'll enjoy your Vega and part of this enjoyment will

be in keeping it in top shape yourself.

Caution:

with

any

machinery.

extreme

care

should

taken

when

performing

any

maintenance

repairs

prevent

accidental

injury.

Improper

incomplete

servicing

could

also

result

vehicle

operational

problems.

Should

you

have

any

question

about

performing

any

service.

have

the

service

performed

qualified

mechanic

We welcome your comments and suggestions.

All informati'

oncontained

this booklet is

the

lat-

est product information

ava

able at the time

printing.

The

right

re-

served to make changes at

any time without notice.

ST-302-71

©General Motors Corporation 1970

Chevrolet Motor Division

General Motors Corporation

Detroit, Michigan

48202

Part No. 3988975

Third Edition,

Febru

ary,

1971

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TABLE

CONTENTS

Maintenance Schedule Index . . . . . . . . . . . . . . . . . . . Page

Lubrication

...

. . . . . . . . . . . . . . . . . . . . . . . . .

Engine

.........

. .

...................

. . . . .

Front Suspension

......

...

.....

...

....

. . .

Powerglide and Torque Drive

....

Manual

Transmission . . . . . . . . . . . . . . . . . .

Rear Axle

...........

.. ..

...

.........

Manual Steering

.....

.. ..

...

....

...

. .

Power Steering

........

.. ..

.....

......

....

Brake Master Cylinder

..........

...

Body Parts

...

....

. . .

.. .. ..

....

. . . . . .

Wheel Bearings . . . . . . . . . . . . . . . . . . . . . . . .

Tune-Up.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Battery Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 24

Belt Condition and Tensioning

.....

Distributor Maintenance

...

. .

. . . . . . .

Spark Plugs . . . . . . . . . .

.....

" 37

What Spark.Plugs Can Tell You About

Your Engine . . . . . . . . . . .

...

.. ..

Engine Timing

...

........

...........

. Positive Crankcase Ventilation Valve

..........

. . 45

Evaporation Emission Canister . . . . .

...

Carburetor

.........

. . .

...

. . . . . . . . . . . . . . .

Valve Adjustment

.....

. .

.. ..

....

. .

Lighting

.......

............

...

......

. . . . 55

Head Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Tum

Signal Lamps . .

...

.....

Side MarkerLamps . . . . . . . . . . . . 60

License Plate Lamps . . . . . . . . . . . . . . . . . . . " 62

Dome Lamp

.........

. . . . . . . . . . . . . . . . . 63

Instrument Cluster Lamps 63

Automatic Transmission Shift Quadrant Lamp 64

Tum

Signal Flasher . . . . . . . . . . . . .

Four-way Hazard Flasher . . . . . . . . . . . . . . . . . . . . . 65

Instrument Cluster

........

. . . .

...

....

" 66

Fuses . . . . .

....

.....

. . .

.....

....

. . . 69

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TABLE

CONTENTS

(cont'd.)

Page

Tires and Shock Absorbers . . . . . . . . . . . . . . . . . . . .

Tires

.......

. .

...

......

...

Tread Wear Indicator . . . . . . . . . . . . . .

Tire Inspection

Tire Changing . . . . . .

........

...

....

. .

......

.......

. .

Front Shock Absorbers . . . . . . . . . . . . . . . . . . .

Rear Shock Absorbers . . . . . . . . . . . . . . . . . . . . . . 78

Tire Rotation . . . . . . . . . . . . . . . . . . . . .

Shock Absorbers

Engine Cooling and Air Conditioning . . .

. . 79

Cooling System . . . . . . . . . . . . 79

Cooling System Flushing

. , . . . . . . . . . . 80

Air Conditioning . . . . . . . . . . . . . .

Inspection . . . . . . . .

Refrigerant Quick Check Procedure 82

Brakes and Clutch . .

...

.......

...

. . . . 84

Brakes

Brake Lines

Parking-Brake

Front Brakes

Rear Brakes . . . . . . . . .

Bleeding the Hydraulic System.

Clutch

.Clutch Pedal Free Play Adjustment

...

. .

...

. . .

Sheet Metal

Sheet Metal Removal .

Windshield Wiper Blade Replacement

Minor Trouble Shooting . . . .

100

Trouble Shooting Guide .101

Fuel System and Engine . . . . . . . . . . . . . . . . . . .102

Electrical System

.....

. .

.. ..

...

....

103

Cooling System . . . . . . . . . . . .104

Vehicle Support Information . . . .

...

.105

Index . . .

...

. . . .

....

109

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MAINTENANCE

SCHEDULE

INDEX

Periodically

Page

•

Check

the oil level . . . . . . . . . . . . . . . . . . .

. . . . . . .

•

Check

the energizer fluid level . . . . . . . . . . . . . . . . . . .

•

Check

all the lights for

proper

operation .

....

...

. . .55

• Inspect seat belts . .See Owners

Manual

• Inspect tires .

.....

...

Every 6,000

Miles

Months

(whichever

comes

first)

•

Change

the engine

oil-more

often during severe

operating conditions

•

Change

the oil filter

the first oil change, then

every

other

oil change . . . . . . . .

•

Lubricate

the front suspension

and

steering linkage

While working

under

the

car

you should also:

•

Lubricate

the

parking

brake

cables

•

Check

the

lubricant

level

the:

...

.20

Standard

Transmission .

....

.. ..

. . . . . .

Rear

Axle

... ...

. . . . . . . . .

.15

• Inspect the:

Brake

lines

and

hoses . .85

Exhaust

system for

proper

mounting, leaks,

missing

damaged

parts

...

See Owners

Manual

Parking

brake

linkage

Tires .

.....

Now, moving

the engine compartment:

•

Check

the fluid level

the:

Energizer

(battery)

...

. .

Brake

master

cylinder

....

Powerglide

and

TorqueDrive

transmission

. .

....

...

. .16

Power

steering

pump

Radiator.

. . .

...

....

• Inspect the:

Air

conditioning refrigerant charge . . .

.......

Accessory drive belts . . . . . . . . . . . . . . . .

.29

Power

steering lines

and

hoses . . . . . . . . . . . . . . . . . . .

Throttle

linkage . . .

.....

. .

........

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• Lubricate body parts

...

....

• Check and, if necessary, adjust Emission

Control items:

Carburetor idle speed . . . . . . . . . . . . . . . . . . . . . . . .

Solenoid idle speed

...

.......

....

. .

. Ignition timing

....

. . .

....

......

. .

...

Every 6,000

Miles

• Rotate the tires

............

.....

.......

.....

....

Every 12,000

Miles

Months

(whichever

comes

first)

• Tune your engine; which includes such items as:

Energizer fluid level check (battery) .

....

...

......

Accessory drive belt tensioning

.......

.....

Distributor cap and rotor inspection . . . . . .

. . . . . . .

Points, inspection and replacement

........

. .33

Distributor cam lubricator

....

.....

...

. .

...

.37

Condenser, inspection and replacement

...

. .

...

Spark plug replacement

..............

.....

...

Timing the engine

....

. . .

...

.....

....

...

Fuel filter replacement . . . . . . . . ; . . . . . . . . . . . . . . . .49

Carburetor adjustments

.........

. .

...

Emission canister filter replacement . . . . . . . . . . . . .

• Check the headlamp aim . . . . . . . . . . . . . . . . . . . . .56

• Inspect the brake lines and brake system for leaks . . . . . . . .85

Every 24,000

Miles

• Repack the front wheel bearings . . . . . . . . . . . . . . . . . . . . .

• Replace distributor cam lubricator

.... ....

. . . .

...

• Replace the PCV valve* .

..........

......

.. ..

...

• Adjust the engine valves

....

.............

...

. . .

• Drain automatic transmission and add fresh

fluid-adjust the low band onthe Powerglide and

Torque Drive transmissions . .

...........

. . . . . .

...

Every 2

Years

• Drain radiator coolant, flush and refill the system . .

...

. .

Every 36,000

Miles

• Check the manual steering gear for seal leakage . . . . . . . . . .16

Every 50,000

Miles

• Replace the air cleaner (more often during dusty

driving conditions)

...............

.....

. . . . . .

.48

24 months. (whichevercomes first)

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. .

lUBRICATION

ENGINE

LUBRICATION

Engine oil should be selected to give the best per-

formance under the climatic and driving conditions in

the territory in which your Vega

driven.

During warm

hot weather, an oil which will pro-

vide adequate lubrication under high operating tem-

peratures

required.

During the colder months of the year, an oil which

will permit easy starting at the lowest atmospheric

temperature likely to be encountered, should be used.

When the engine

drained and refilled, the engine

oil should be selected, not on the basis of the existing

teinperature at the time of the change, but on the lowest

temperature anticipated for the period during which

the oil

to be used.

Unless the engine oil

selected on the basis of

vis-

cosity

fluidity at the anticipated temperature,

diffi-

culty in starting will be experienced at each sudden

drop in temperature.

SAE

Viscosity

Oils

SAE Viscosity Numbers indicate only the viscosity

body of the oil, that

is,

whether an oil

a light

heavy body oil, and do not consider

include other

properties or quality factors.

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The lower SAE Viscosity Numbers, such

SAE 5W SAE

lOW

which represent the light body oils, are recommended for

use during cold weather to provide easy starting and instant lubri-

cation. The higher SAE Viscosity Numbers such as SAE 30 and

SAE 30W, which represent heavier body oils, are recommended

for use during warm

hot weather to provide improved oil econ-

omy and adequate lubrication under high operating temperatures.

Oils are available which are designed to combine the easy start-

ing characteristics of the lower SAE.Viscosity Number with the

warm weather operating characteristics of the higher SAE Vis-

cosity Number. These are termed "multi-viscosity oils," SAE

5W-20,

SAE

5W-30, SAE 10W-30, SAE 10W-40, SAE 20W-40.

The following chart will serve

a guide in selecting the proper

oil viscosity.

addition to providing proper lubrication, the cor-

rect viscosity helps assure good cold and hot starting by reducing

friction and thus·increasing cranking speed.

Please

Note:

•

SAE

5W-20

oils

are

not

recommended

for

sustained

high

speed

driving

•

SAE

oils

may

used

temperatures

above

degrees

RECOMMENDED

SAE

VISCOSITY

NUMBER

I I I

•

'_l'_lIlY.t11ri(

••

tWIll.- •

I • I I I -.

I I I

•

r I I I I I

-30

-20

100

TEMPERATURE

RANGE

ANTICIPATE!)

BEFORE

OIL

CHANGE,

OF.

Types

Oils-

How

Determine

the

Quality

Oil

You

Are

Getting

service, engine oils may form sludge and varnish and, under

some conditions, corrosive acids unless protected against oxidation.

minimize the formation of these harmful products and to

assure the use of oil best suited for present day operating conditions,

automobile manufacturers have developed a series ofsequence.tests

designed to evaluate the ability of any oil to properly lubricate

automobile engines.

Only those oils which are certified by their suppliers

meeting

(a)

MS service requirements and

(b)

car makers tests are of the

quality

be used in Chevrolet engines.

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Checking

and

Maintaining

the

Oil Level

Warm up the engine, turn off

the ignition and allow a

few

minutes so the oil can return to

the crankcase before checking

the level.

The engine oil dipstick

lo-

cated in the left rear corner of

the engine compartment next

to the engine. The dipstick

marked "FULL" and "ADD".

The oil level should be main-

tained between the two marks,

neithergoing above the"FULL"

line nor below the "ADD" line.

Remove the dipstick from

the tube and wipe it off

with a rag.

Engine Oil Change

Replace it and make sure it

is seated in the tube.

Remove it again and in-

spect it to see if the oil falls

between the two marks.

4. Add oil only if the level falls

below the "ADD" mark.

One quart will raise the

level from the"ADD"mark

to the "FULL" mark.

5. Replace dipstick firmly.

ensure continuation of best performance, low maintenance

cost and long engine life, it

necessary to change the crankcase oil

whenever

becomes contaminated with harmful foreign materials.

Under normal driving conditions draining the crankcase and refill-

ing it with fresh oil every 4 months

every 6000 miles (whichever

occurs first)

recommended.

certain types of service including trailer hauling, extensive

idling, short trip operation at freezing temperatures (engine not

thoroughly warmed-up), the oil change interval should not exceed

2 months

3,000 miles, (whichever occurs first).

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Parts

Necessary

3 Quarts

the Appropriate Engine Oil (without Filter

Change) (2Yz Quarts Imperial)

4 Quarts

the Appropriate Engine Oil (with Filter

Change)

(3IA

Quarts Imperial)

1 Oil Filter: AC type

"PF-25"

Tools

Necessary

%6 Inch Wrench Funnel

Quart

Capacity Drain

Pan

Can Opener

Oil Filter Removal and Installation Tool*

*This

tool

can

purchased

most

auto

supply

stores

nominal

price

always advisable to drain the crankcase only after the engine

has become thoroughly warmed-up or reached normal operating

temperature.

Caution:

Stand

clear

and

never

get

beneath

the

car

when

supported

only

jack

The

jack

designed

only

for

use

when

changing

wheels.

Always

use

safety

stands

blocks

beneath

the

wheels

support

the

car

necessary

get

underneath

Run

the engme until

reaches operating tempera-

ture, then shut it

off.

Place the drain pan under

the engine oil pan.

Remove the engine drain

plug with a

716

inch wrench.

4. Allow the engine oil to

drain thoroughly into the

drain pan.

Replace and tighten the

drain plug.

you are replacing the oil

filter:

a. Attach the oil filter can

removal and installation

tool and turn counter-

clockwise to remove the

filter.

b. Replace with a new

type "PF-25" filter and

tighten securely by hand.

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