1980 SKODA 120 LS Workshop Manual

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L' t-9', L

ii
i ENGINE
Model
- for Skodo 105 S ond 105
L
- for Skodo 12o L
- for Skodo 120 LS
Type
Number of cylinders
Cylinder orrongement
Cooling
Swept volume
- Skodo 105 S ond 105 L
- Skodo 12O L ond
120 LS
Bore
- Skodo 105 S ond 105 L
- Skodo 120 L
ond 120 LS
Stroke
Compression rotio
- Skodo 105 S, 105 L ond 120 L
- Skodo 120 LS
Engine power
output to CSN ond DIN
- Skodo 105 S ond 105 L
- Skodo 12O L
- Skodo 120 LS
Moximum torque
- Skodo 105 S ond 105 L
- Skodo 120 L
- Skodo 120 LS
Fuel -
recommended octone number
- Skodo 105 S,
- Skodo 120 Ls
Corburettor type
Fuel lift pump
type
CLUTCH
Type
Control
GEARBOX
Type Speeds
Geor rotios -
1st-speed geor
2nd-speed geor
3rd-speed geor
4th-speed geor
reverse geor Skodo 742.10 Engine No/l
Skodo
742.12 Engine No/2
Skodo 742.12x Engine
No/9
four-stroke, spork-ignltion,
corburettor engine with overheod volves
4 in line
pump-circuloted ontifreeze,
thermostotic temperoture control
1,046 c. c.
1,174 c.c.
68 mm
72 mm
72 mm
8.5:1
9.5:1
33.9 kW (46
h. p.)
ot 4,800 r.
P. m.
38.3 kW (52
h. p.)
ot 5,(X)0 r. p.
m.
42.7 kW (58
h. p.)
ot 5,2(X) r. p.
m.
74.5 Nm ot 3,000 r.p.m.
85.2 Nm ot 3,000 r.p.m.
90.2 Nm ot 3,250 r.p.m.
90 minimum 95 minimumduol, twostoge, downdrought
nrodel JIKOV 32 EDSR
diophrogm pump, model
JIKOV MF
dry, single-plote, with direct
disengogement
hydroulic
with helicol
spur geas
4 forword ond 1 reverse, synchrolock on the
1st-, 2nd-,
3rd-, ond 4th-speed geors
3.8
2.12 1.41
0.96 3.27
105 L ond
12O L
18

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Broke
fluid:
- clossificotion
- brond filled-in in the foctrY -
FUEL TANK
Locotion Fuel cleoning (filtrotion)
CHASSIS LUBRICATION
TyPe
ELECTRICAL EQUIPMENT
Eorthing
Roted voltoge
Service voltoge
lgnition
Storoge botterY .
Alternator PAL Magneteton
Voltoge regulotor
Distributor
lgnition coil
Storter motor
Sporking plugs -
see ChoPter 137
BODYWORK
Type Seoting copocity
Luggoge comportments, coPocitY
H e oter
FILLING CAPACITIES
Engine -
Skodo 105 S, 105 L
ond 120 L
Skodo 120 LS
Georbox ond
finol drive cose
Steering box
Broke system
ond clutch
Cooling system
Fuel tonk SAE J
1703C
SYNTOL HD
190
suspended under
floor boord of cor reor holf
stroiner in fuel tonk,
fuel filter, ond stroiner
in corburettor
self-lubricoting beori
ngs,
by greose nipples;
wheel
greose
negctive pole
12 volts
14 volts repocking
with greose
beorings pocked
with
bottery (coil)
type
type AKUMA 6N 37 -
12 volts, 37 ompere-hours
14V 35 amps 1976-79
1O5/12O
L
14V 42 amps 1979 on
1O5/12O
L
14V 42 amps 1976-79
120 LS
14V 55 amps 1979 on
120
LS
type PAL Mogneton, 14 volts
type PAL Mogneton
with centrifugol timing
device ond vocuum unit
type PAL Mogneton, 12
volts
type PAL Mogneton, 12
volts
0.66 kilowotts (0.9
h. p.)
oll-metol, closed, four'door,
chossisless body
5 occuponts
0.40 mi (0.28
rn: moin luggoge comPortment for
q lood of obout
0 kg, 0.12 mr interior luggoge
comportment for
o lood of obout 10 kg)
hot-woter heoter
with fon, fed with woter
from
the engine cooling sYstem
4 litres moximum -
2.5 litres minimum
of engine oil
4.6 litres moximum -
3 litres minimum
of engine oil
2.5 lities of geor
oil (2 litres when
chonging oil)
0.16 litres of gecrr oil (obout
0.25 litres when
topping up)
O.4A titres of broke f
luid (f
illing for tropicol
regions, etc. see ChoPter 16.2)
12.5 litres of
ontif'reeze
38 litres 1.8 Tt(
BC
1. Ap
von ized
out o sL
2.tti
Threo
ENGINE
Connecti
Nut of c
Nut of c
Nut of vr
Nut of fr
Nut of c
Nut of si Nut of c'
Cylinder Bolt of c
Flywheel
Bolt of cr
Oil sump
Oil sump
Droin plu
Bolt of ft
Bolt of oi
Socket ol
Oil pressr
Sporking
CLUTCH Connectir Generol
20 Bolt
foste

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GEARBOX. FINAL
DRIVE
Connection DimensionsTightening
torque Nmt)
Nuts of cosing clomping bolts .
Nut of primory shoft
Plnlon nut .
Nut of pinion
beoring coP
Nut of releose sleeve
bol
Nut of front cover bolt
Nut of speedometer shoft clip bolt
Nut of speedometer drive beoring
bolt
Nut of reverse-geor pin
bolt
Bolt of reverse-geor pin
Bolt of shifter forks
Bolt of cop of lock-boll springs
Silentblock bolt
Bolt of differentiol cose
Bolt of crown geor
Droin ond inspection hole plugs
Switch or bolt of reversing lomps .
REAR AXLE
Connection M8
M 22x1.5
M 24x1.5
M8
M6 M8
M 22x1.5
M 14x1
Dimensions 40-50
14-17
6-8 19-25
7-9
7-9 17 -20
7 -9
14-17
7 -9
30-40 22-25
35-45
20-30
70-80
M6
M6
M8
M8
M6
M6
M10
M8
M 10x1 30-35
7 -9
Tightening torque Nmr)
Rood wheels nuts .
Nut of oxle-shoft boll
Nut of oxle shoft
.ioin;
boit M 12x1.5
M8 M 18x1.5
M8
M10
Dimension 60-70
20-25
17O *)
a
40-50
Bolt of broke
bocking plote
Bolt of wheel cylinder
FRONT AXIE
Connection Tightening
torque Nml)
Nut fostening lower wishbone fulcrum
brocket to bodywork
Nut of lower wishbone fulcrum
brocket
(next to rubber bush -
inner)
Ditto -
outer lock nut .
Nut of upper wishbone fulcrum
brocket
(next to rubber bush -
inner)
Ditto -
outer lock nut .
Nut of upper wishbone pin (connection
with steering
knuckle pivot)
Nut of lower wishbone pin (connection
with steering
knuckle socket)
Nut of wheel
hub beoring .
Nut of steering knuckle pivot
.
Nut of lower
wishbone brocket bolt .
Nut of bolt fostening shock obsorber to its onchor brocket
Nut fostening shock
obsorber to
bodywork
Wheel nuts
Bolt fostening
front oxle to bodywork .
Bolt of
onti-roll bor brocket see
Chopter 6.5, points
24 ond 25
see Chopter 6.5, point
21
M
,M M
M
M
M 12x1.5
12x1.5
12x1.5
12x1.5
12x1.5
12x1.5 6s-70
45-60
70-90
45-60
70-90
70*)
70 *l
40-50 50-55 12-14
60-70
40-45
12-16
M
12x1.5
M10
M 12x1.5
M10
M 12x1.5
M10
M7
*) Further tightening os
required for olignlng holes
for the cotter pin.
22

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metre), ond the
relotion of 1
kpm :9.806
Nm is'
opplicoble. When opplied to tightening
torques
of bolts ond nuts, use the relotion
10 Nm :
: 1 kpm.
d) The unit of power (output) tW'
(wott)
reploces the former "h.p."
(horsepower) ond
the relotion
of t h. p.:
735.499 W is opplicoble.
For procticol purposes,
o multiple of kW (kilo-
wott :
1,000 wotts) is used, i. e., t h. p. :
:0.736 kW.
e) The
unit of pressure "Po"
(poscol) or, in
proctice, MPo (megoposcol :
1,000,000 poscols)
or kPo (kiloposcol :
1,000 poscols)
reploces the
former "bor"
ond "kglcmz",
ond the following
relation is opplicoble: 1 MPo: 10 bors :1O.2
kg/cm2 (kp/cm2).
For current meosuring
of tyre
pressure etc., use the relotion: 100 kPo :
1 bor:
:1kglcm2 (kp/cm,) :1
otm.
1.10 GENERAL INSTRUCTIONS
With the exception of o few
speciol pro-
cedures or ossembly techniques
mentioned in
the respective section of
this monuol,
every
removol ond refitting (disossembly
ond re-
ossembly) should be governed
by the following
generol principles:
o) Use suitoble tools ond especiolly tubulor
box sponners which couse the leost domoge
to nuts ond bolt heods.
b) During disossembly note corefully how
the ports
hove been ossembled. This knowledge
is involuoble for correct reossembly.
c) Cleon ports
in trichloroethylene or tech-
nicol petrol.
They do not contoin substonces
(esoeciolly leod) which horm
the skin os motor
petrol does. Current bronds of seoling com-
pounds con be removed with denoturoted
ol-
cohol or scroped off. For o speciol
seoling
compound see the note ot the end of this
chopter.
Avoid contominotion of self-lubricoting
metol
beorings with ony degreosing
ogent os this
would unfovourobly offect their self-lubricoting
properties.
Cleon ports
of the broke ond clutch hydroulic
system with olcohor.
d) Lubricote
oll ports
moving on or in
eoch
other before their ossembly. Operoting lubri-
conts do not spreod eosily on dry surfoces,
the
ports ore not properly
lubricoted, ond friction
oreos ore opt to get
domoged. Coot the os-
sembled ports with the lubricont which is used
to lubricote them in operotion. When lubricoted
with oil, dip
the ports
in motor oil, the f luidity of which mokes
it
especiolly suitoble for
this
purpose. Use greoses
ond hydroulic f luid bronds
specified in the Toble
of Recommended Lubri-
conts.
e) Use new cotter pins
ond metol lock
woshers if you
ore not convinced of the perfect
condition of the old ones which could breok
ond leove the joints
unsecured. Moreover, there
is o risk
of the broken ports
domoging other
functionol ports.
f) Cleon new ontifriction beorings (boll,
rol-
ler, ond topered roller beorings) of preserving
greose using kerosene.
Preserving greose is not
suitoble for lubricotion ond it mixes bodly with
I ubriconts.
g) Some of the joints
hove to be tightened
with o moximum occurocy to the specified
tor-
ques listed in the previous
chopter.
h ) 'Ihe
permissible rototion unbolonce is spe-
cified for some of
the rototing ports,
usuolly in
gcm (gromcentimetres). A well boloqced port
con be stopped in
ony position
if it is
instolled
so thot no rototion resistonce
octs on it. With
the exception of dynomic boloncing, the ports
ore usuolly tested on on ouxiliory shoft ploced
on the
edges. The
unbolonced port
moves from
the deflected position
with its heoviest (i.
e.
unbolonced) port
downword. The
volue of un-
bolonce con be determined
when fostening
o weight corresponding to the permissible
un-
bolonce to the opposite side
of the unbolonced
port. lf the port
does not move when deflected
or if it moves with this weight downword; the
unbolonce is within the recommended limits.
The weight of the testing weight sholl be
de-
termined by dividing the volue of the permis-
sible unbolonce by the distonce of the weight
from the rototion
centre of the port.
i) Even slightly domoged seols ond pockings
must be reploced with new ones
Note: In the foctory,
the speciol seoling
compound
of the "Velvonton
C" brond is used for seoling
the engine reor
cover on the cylinder block, the
moting surfoces of the georbox housing holves,
ond the guide
of the clutch releose beoring.
This seoling compound is mode
on the bose
of o polyurethone
plostic ond it
corresponds to
"Hykemor", "Reineplost", "Curil
K" ond similor
compounds. lt con be removed from the ports
by scroping ond woshing with ocetone, butyl-
ocetone or chlorinoted solvents, for exomple
chloroform (trichloromethone)
ond corbon tetro-
ch loride.
24