1980 SKODA 120 LS cooling

The child'proof
lotch
of
the reor
door.s con
be
"ng"!J Uy
tipPing down
its
lever' The doors
;;; ;" open"d'froir outside
ofter
disengoging
iunfoctin'g1 the
lotch by pulling
the
Press'
button.
Fig.1.311 Inside
Door
Mechonisms
1 -
Hondle
2 -
Lock Press-button
3 -
Drop window cronk
4 -
Door pull
5 -
Ashtroy (depending
on
reor door
outfit) Fig.
1.312
Child'Proof Lotch
INSTRUMENT PANEL
t
a
(
Fis. 1 .3/3 SKODA 1O5
Slnstrument Panel
up
to October 1978
only'I
12
/l
910
1 -
Worning light
of
left-hond direction
indicotors, green
2 -
Speedometer
3 -
Worning light
of right'hond direction
indicotors, green
4 -
High-beom worning light,
blue
5 -
Th6rmometer (of
engine cooling liquid) 6
-
Chorging worning
light, red
7 -
Oil pressure
worning light,
reo
8 -
Distonce recorder
I -
Fuel reserve worning light,
omber
10 -
Broke sYstem
worning light,
red
11 -
Fuel gouge
12 -
UnoccuPied, green

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

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

2.2-2.3
threods. Fill the etrgine with oil ond the cooling
systenr with on ontifreeze, ond
bleed them.
2.3 REASSEMBLING THE ENGINE
The reossembly procedure depends
on the
extent to which the engine hos been
dis-
rnontled. For better understonditrg, o
reossembly
of o conrpletely disnrontled
engine is described
in the following
porogrophs.
lnspection of
Cylinder Block
1. Clomp the thoroughly cleoned
cylinder
block into the MP 9-101 stond with the engine
corrier type MP 1-101 ond check it for complete-
ness -
see Chopter 2.6. Fit the
block with its
lugs on the engine corrier pins
ond use the side
bolt for ltolding it down.
DK 1188
Fig.2311- Cylinder Block Fostened on the
Assenrbly Stond by lVleons of the MP 1-10-l
Corrier
2. Rernove the pressure
relief volve, moke
sure thot the boll contoct {oces ore cleon,
ond
refit the cleoned volve. Forr
f itting o new volve
see Chopter 2.6.
3. Remove the cronkshoft beoring
covers ond
tlre i;ylinder block reor cover.
To Refit the Cronkshoft
4. Force the beoring shell lrolves with the
fingers into the cronkshoft beoring bores so thot
the shell lip snops home into the slot (cut-out)
in the block ond so thot the shells do not pro'
trude over the beoring surfoces for the beoring
covers, ond lubricote them with engine oil. Be
r;ure to fit shells motching the cronkshoft
i":urnols -
see Chopter 2.7.
5. Slip the oiled guide
ring on the cronkshcft
"vith oil grooves
pointing
toword the cronkshoft
'.veb ond {it the cronkshoft with the pressed-on
boll beoring (see
Chopter 2.7)
into the shell. 6.
Inscrt the
beoring shell
holf ir-rto
the cover
of the beoring No.-l
os described in
porogroph
4,
ond fit the cover with the
recess for the guide
ring turned outword. Proceeding from
the front
of lhe block, slip
on the next guide ring with
the oil grooves pointing
owoy from the block so
thot itJ
lip engoges ogoin into
the slot in the
cover. Coot the ring
with oil ond slip on the
thrust ring. Fit the MP -1'112
thrust collor on the
cronkshofi ond
tighten the
beoring slightly
using the belt
PrrlleY bolt.
7. Instoll the next
two beorirrg covers
corl'l'
plete with beoring shells
ond lightly
tighten l.he
cover nuts.
Press the cork
seol
into the
reo'r
cover moking
sure thot it
f its the groove
snugly
ond slightly bverlops the lower
seoting surfoce'
Before titting the cork seols,
compress them
for
o while in o vice to distort them. Insert the
distorted seols in the grooves
or gops between
the cover qnd
the cylinder block
where they
will expond onci provide
for perfect seoling.
lnsert tob woshers under
the nuts of the
beoring covers
ond while tightening the rruts
check their correct position so os
to enoble
o subsequent correct locking
of the nuts.
Fig.2.312 -
Meosuring Cronkshoft Ploy
1 -
Thrust collor, type
MP 1 112
2 -
Diol indicotor in o
speciolly mode yoke
8. Rotote the cronkshoft severol times ond
using o mollet top the covers ond both shoft
ends to ensure o correct bedding
of the covers
ond cronkshoft guide rings.
9. Tighten the belt pulley nut
to clomp the
thrust ring, ond
rotote ond force
off
the cronk-
shoft to
check its ploy. The
cronkshoft must
be
free to rotote but
without ony
noticeoble ploy.
lf there is o noticeoble ploy, recheck
its volue
ond odiust it by replocing the guide ring with
o new one. The
moximum ploy
should not ex-
ceed 0.10 mm, the recommended minimum ploy
being 0.04 mm. 10.
F
speciol
end onr Drive
suchr o
be turnr
cover. I
ever, tf
the cyl
speciol note in
11. Ti
the tigh
in the
covers. hoving
does no
must ro
Then lo,
woshers
ond nut
To Refil
12. R
greose i
it with i
o flywhr
engine,
with rec
under tt
Chopter
bending
shoft og
powl ins
For flyw
Fig.2.3l3
Using thr
Screw
holes, for
con be ur
further o1
the hondr
30

'll
16. 17
19
q
"b 2A
Technicol
The gec
tegrol uni
Neither of
Since c,
tionolly tc
"georbox "
molly to d
respect i ve
The geo
from the c
reor oxle c
the so-coll
4.1 DtSM
PACK
The pov
tronsm issi,
plete with
Fi9.4.111.
Removql
o) Prelimir 1. Jock r
the reor wl
ond remov Droin th
see Choptt
b) Operoti
2. Prise r
of the reor
cobles ofte
3. Remo,
behind the
bottery. Re
engoge the
lever, loosr
fronr the gr
it from tht
housing to
getting int
pressed on
housing wi
4. Proce
bockrest, fr
detoch the
obsorbers, ,
c) Operotir
5. Remor
connectionr
cooling sys
see choPte
d) Operotic
6. Discol
motor.
4
2
'u., ts
I
Fbb
,w
FINAL DRIVE ASSEMBLY
I
r8
12
ik"-n
TO
13
6
q
76

r
t
i
5. Prc
scri bed
rods onc
4th spee
fork rod,
irr the b
6. lnsl
guide bu
cover inr heods. S
tob wos
edges of
F it thr
stri ki ng
weoker s
ing forks 7. Tigl
the forks fork rod
the strik
function
Reverse-:
Fig
-1 - Rever
2-1st-o
3-3rd- o
4 -
Rever
8. Inst
press-f ittr
verse-spe
inside th
through t
Turn tl'
end foces
lock it in
hole. Tigl
Pinion Ar
9. Instc
ing ond,
r
_-_-- -
. i\:r,,,
\. 43
Fig. A.1l'l -
Power Pock
1 -
engine with mounting, 2 -
georbox/f inol
drive with
mounting, 3 -
reor oxle (holf-oxles),
4 -
rodius orms
retighten it using the recommended torque
(Chopter 1.8) ond screw down the clinch nut.
lf necessory, top up engine oil, f ill the cooling
system witlr on qntifreeze,
bleed the broke sys-
tem, ond
odiust the hond broke.
For the fosten-
ing of broke hoses (routing)
see Chopter 9.7.
4.2 ASSEMBLING
GEARBOX
Generolly, the reossembly
p'rocedure
depends
on the extent, to wlrich the unit hos been token
oport. For betterunderstonding,
we sholl des-
cribe the procedure
ond peculieorities
of reos-
sembly of o completely
disossembled unit.
Gear Chonge Mechonism
. 1.
Clomp the right-hond holf of the housing
(when viewed from the flonge securing
it to
the engine) in the MP 9-101 stond
com-
plemented with the MP 3-101 georbox
rock, ond
check the housing for completeness.
2. Instoll
circlips on the striking fork rods
of
the reverse
ond 1st ond 2nd speed. The ring
with the lower
nose is to be fitted
on the 1st--
ond 2nd-speed rods.
3. lnsert the reverse speed
striking fork rod
into the housing
so thot the inserted
end pro-
trudes slightly from its guide,
slip on it the
striking fork with the longer
side of its heod
first,- ond push
the striking fork rod through
the fork
ond the end of the guide
os for os=it
will go. 4. Fit tlre
MP 3-109 jig
into the free holes for
striking fork rods (both pins
of the
iig), ond
proceeding through the hole in its side ond
using o stick or o length of wire, push
the lock
pin into the housing
os for os it will go.
Proceed
in the some monner for
inserting the next pin
(use one pirr
of the
iig). Shift
it
iust so thot
the centre lrole remoins free for inserting
the
striking rod.
Puslr the lock pin
into the end
guide of the strikirrg
fork rods olso os for os it
will go. The
iig is not required
for
the instol-
lqtion of this pin.
Fig.4.2l1- Clomping Georbox Housing in Stond
Using MP 3-101 Rock
Fig.4.212 -
Locking Striking Fork Rods in
Position bv Meons of Lock
Pins ond Bolls
78 Fig.4.2l3
-
Instolling Lock Pins Using
MP 3-109 Jig

Fig. 1111-
Cooling ond Heotlng System
Diogrom
1 -
Engine, 2- Coolont pump,
3 -
Thermostot,
4 -
Coolont tonk, 5 -
Screw cop, 6 -
Roidotor,
7 -
Rodiotor fon, 8 -
Fon thermoswitch, g
-
Heoter, 10 -
Heoter fon, 11 -
Heoter reguloting
volve, 12-Woter line to rodiotor, 13-Woter
line to heoter, 14 -
Filling line, 15 -
Bleed
vofve, 16 -
Bleed pipe,
17 -
By-poss pipe,
18 -
Droin screws, 19 -
Droin hose
150

11.4-11.5
I
I
I
F
r
t'
on to the coolont tonk.
Hose
clips ore formed
either by metol strips
or lengths
of wire. When
tightening the wire clips, toke core not to
domoge the rubber of the hoses.
To Fosten Pipes ond
Hoses
A correct winding of the strip is importont
to ensure o self-locking clomping of the strip
clips -
see Fig. 11.411.
Fig.11.Al1- Diogrom showing
the threoding
of
the clip strip through
the clip closp ond
the
direction of rototion of
the tightening cotter
pin -
the diogrom hos generol
opplicobility
1 -
Strip clip,2 -
Closp, 3 -
Cotter pin
The moin pipeline
routed under the cor f loor
consists of front ond reor pipes.
They ore em-
bedded in o chonnel moulded in the floor
boords ond rest on on insuloting (polysterene)
podding. From below, they ore protected
by
o guord,
the copscrews of which ore locked
in
position by spring woshers.
Use pipe
holders (yokes) to fosten the pipe-
line to the floor. In
the front
ond reor port
of
the cor, tighten
the pipes
over the insulotion
lrod ond insert
spring ond ploin
woshers under
the nuts.
Do not use insulotion pods
for bends
forming the tronsition from
the front
ond reor
lower flot ports.
Use spring woshers under
the
heods of copscrews.
Before instolling the pipes, prepore
ouxiliory
yokes (or use lengths of wires ottoched to the
provisionolly screwed-in copscrews of the pipe-
line guord) to liold the pipes
in the moulded
chonnel in
the floor before
the finol fostening
of their guord.
The woter line runs
under the cor together
with other lines, pull-rods,
etc. For their mutuol
ref otive orrongement see Chopter 12.7. Removol
To moke the underbody occessible for hond-
ling the pipes,
ploce
the cor over o floor pit
or
on o romp. The minimum required cleoronce is
obout 650 mnr.
1. Remo.re the guords
of the pipes
ond the
fuel tonk, lift owoy the spore wheel, ond loosen
the yokes
holding the pipes
to the floor.
2. Remove droin screws to droin the coolont
from the pipes -
see the illustrotion in Chop-
ter 15.'13.
3. Remove one hose clip in the middle
of the
cor to disconnect
the pipes
(ottention -
the
remoining coolont will f low out), ond dis-
ossemble the line.
4. Disconnect the pipe
ends from the hoses,
ond detoch the pipes
from the floor or other
ports of the cor.
5. Pull out the reor pipes
possing
them core-
fully oround the vorious cor ports.
6. Pull out the front pipes.
Turn
the front
wheels into their left lock position,
disconnect
the steering linkoge from the steering
reloy
lever ond the steering knuckle orm of the
right-
hond wheel, ond push
the linkoge ogoinst the
oxle body. While removing the pipes,
rotote the
left-hond pipe clockwise (when
viewing the cor
front end), ond the right-hond pipe
onticlock-
wise.
Reinstollotion Reverse the dismontling procedure
when re-
instolling the woter line. While connecting the
steering linkoge, poy
ottention to the condition
of boll pin
seoling cups (fit
new cups if the old
ore domoged). Fill in the recommended
coolont
ond bleed the cooling system.
11.5 COOLANT TEMPERATURE CONTROL
Throughf low Thermostot
This thermostot shuts off the inlet of the
coolont into the rodiotor
during the engine
heoting-up period. lt is mounted on the engine
- see Chopter 2.3, por.
30.
The thermostot operotes within the following
volues:
it begins to open ot 80+2"C
it is fully open ot 90+4oC
its lift ot full opening
11 mm
When closed, it
is permitted
to let poss
o nroximum
of 0.5 litres
of coolont per
minute,
ond it must not be closed by o bock pressure
of 0.16 MPo (1.6
kg/cm2).
When removing the thermostot by rototing
tlre rivet in the volve disk, breok owoy sedi-
I i
i 152