oil filter SKODA 120 LS 1980 Workshop Manual

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

ilil
ll
I
Z,l
spring woshers under the pump
fostening nuts.
36. lnstoll the oil filter -
see Oil Filter in
Chopter 15.3.
37. Bolt the brocket ond the reloy lever
of the
occelerotor linkoge to the intoke monifold, Use
spring woshers to lock the bolts in position.
38. Locote the corburettor gosket, sheet
guord, onother gosket,
the insuloting wosher,
ond o third gosket (oltogether
three goskets
of
the some type) on the intoke monifold inlet
socket, instoll the corburettor,
ond tighten
it
down with nuts.
On 105 ond 120 l- engines, the sheet guord
must be fitted to the intoke monifold inlet
socket with o throttling spider, while 120 LS
engines must hove the possoge
unobstructed.
39. Smeor the boll pins
of the linkoge
ond
corburettor lever with greose
contoining molyb-
denum disulphide
ond mount on them the oc-
celerotor link (tie-rod).
Hold the link in pliers
ond slip securing clips over the heods.
Hook o spring on the shonk of the reloy
link-
oge boll pin
ond on the rib of the forehousing
on the corburettor.
40. Screw down the vocuum
control pipe
on
the corburettor (using
double-sided seoling
rings) ond slip on the rubber
hose connecting
the pipe
with the distributor vocuum control
unit. Secure the pipe
by bending the clip under
the nut of the intoke ond exhoust monifold.
To Refit Alternotor
41. Attoch the olternotor
brocket to the side
of the cylinder block while putting
ploin
woshers under
the nuts. Mount the olternotor
holder together with the engine mounting lug
on the bolt of the timing geor
cover ond the
front lug of the cylinder block.
Use self-locking
nuts for the bolts f ostening the olternotor
holder. Lock
the lower bolt of the lug by meons
of o spring wosher
ond nut. Using onother bolt,
bolt together the lug ond the brocket. lnsert
the tie-bolt from
the side
of the lug, slip on
o ploin
wosher ond tighten the nut. Fit the
short-circuit strip on the bolt ond lock it in
o position
porollel
with the olternotor brocket
by screwing
down the respective nut with
o ploin
wosher.
42. Put the olternotor into the holder,
ttrreod
in the bolt, ond screw down the nut with o ploin
wosher without tightening. Without tightening
the self-locking
nut, bolt the strut into the
brocket on the cylinder heod. Swing the olter-
notor toword the engine, fit
the V-belt ond,
while tensioning it, connect the olternotor with
the strut using o bolt, spring wosher ond nut.
At the some time, tighten the nut of the bolt
holding down the olternotor
in the
holder ond
the nut of the bolt connecting the strut with
the holder. For the belt slock odiustment see
Chopter 15.3. 43.
Fosten the second
engine mounting lug
using nuts with spring woshers.
To Fit Cylinder Heod, Air
Cleoner,
ond Sporking Plugs
44. Fit the cylinder heod
with cemented.on
gosket on the cylinder block ofter hoving slip-
ped o seoling ring ond o wosher on eoch bolt,
the some os in the cose of the push-rod
cover.
In oddition, fit the fuel pipe
holder on the reor
bolt ond hold it down by slightly tightening the
nut.
45. Fit the oir cleoner in position
ond fosten
it to the corburettor with o bolt using o seoling
ring ond wosher. Put o spring wosher
under the
nut on the brocket
ond screw down the nut on
the bolt of the cover without ony wosher.
46. Threod the fuel hose through its holder
on the cylinder heod ond use clips to fosten it
to the corburettor ond pump.
Adiust the most
suitoble position of the hose by rototing
the
holder ond then tighten the nut.
47. Attoch hoses connecting the oir cleoner
with the corburettor ond the oil filler neck.
When preporing
the cc for driving in winter,
instoll the winter
oir-intoke tube (hose) -
for
detoiled instructions see Chopter 15.3 "Air
Cleoner -
Winter Operotion".
48. Screw in the sporking plugs
with seoling
iings ond fit the ignition cobles. For the re-
commended types of sporking plugs
see Chopter
13.7.
The outlet on the distributor cop morked with
o notch is intended for
the coble
to cylinder
No. 1. The
remoining outlets ore.to be counted
clockwise ond in direct
order from 1
to 4 ond
the cobles will be connected to sporking plugs
in the order of numbers cost on the cylinder
heod beside the recesses for sporking plugs.
Plug Screws ond Lubricotion
System
Accessories
49. Plug the oil sump with the conicol screw
plug with its
seoling ring. In the cose of on
engine without the oil cooler, plug
the oilwoy
on the timing geor
cover with o screw plug
with o seoling
ring, ond the oilwoy ot the reor
end of the cylinder block with o pressure
switch. lf the socket for screwing down the
pressure switch is missing, instoll o new socket
together with its respective seoling ring.
lf on oil cooler is provided,
hoses ond o press-
ure switch should be
connected to the oilwoys
occording to Chopter 11.9.
Put the oil dipstick
with the f itted rubber ring
in its ploce.
For the type of the dipstick see
Chopter 2.17.
50. Using spring
woshers with the bolts,
screw down the flywheel
guorcl
ofter removing
36

For the
instol lotion of the engine on the test
bench, we indicote the dimensions
of the en'
gine flonge ond flywheel. During broking, the
engine qnd
the engine oil must
be properly
cooled to preclude
exceeding the oPtimum
service conditions, i. e. woter temperoture
ofobout
80 to 90oC, ond oil temperoture of 12O"C
moximum -
see Chopter 2.5,
porogroph 51.
Engine Lubricotion
The inner lubricoting oil distribution system
is shown in Fig.2.5/5.
6 DK .r5+9 2.6
cYL
The cyl
mochined
the cronl
ports, forr
ore mode
B locks fo
72 mm di
I i ners.
Oilwoys, I
o) Befo
o new cyl
ossembled
blow thror"
b) Coot
pound or p
the oilwoy
c) Likev
into the e
pound or p,
of the
cyli
one (of
lo
limits indi
Ports) to er
d) Tighte
ot cylinder
under it.
e) Foster
the cop of
Fosten the
with o bolt
Fig.2.611 ond
1 -
choin gre
plug, 3 -
iniel
relief volve,
with cop, 6 -
inlet from o
ptug, I
9
8
7
5t
Fig.2.515 -
Engine Lubricotion Diognom
Skodo 120 LS
engine hos,
in oddition, on oil cooler incorporoted between the punrp
delivery
broncir on the timing geor
cover ond the moin oilwoy (see
Fi9.11.9)
srlctionstroiner,2-pump,3-pressurereliefvolve,4-moinoilwoy,5-oil filter,6-by-poss
hole, 7- oil pressure
switch, 8-pulsotingchomber, 9- rocker orms, 10-connecting rod
splosh hole, 11 -
choin splosh screw
4
2
4 t-
oil I
?
?
I
;
t

I-
.'t Fig.
15.3/3 -
Oil Filter
oil f ilter bowl
witlr f ilter
element
centre-boll oil pressure
switclr pressure
oir. When driving often
on dusty roods,
ihe cleoning intervols
should
be shortened by
holf. For oir cleoner mointenonce in tropicol
re'
gions refer to
ChoPter 16.2.
Air Cleoner -
winter oPerotion
Remove the rubber
cop from
the cover exten-
sion orm ond
use it to stop the mouth of
the
orm. Fit o guide extension into
the cleored hole
in the ornr ond
insert the
corrugoted poper hose
(included in the
cor equipment) into
the
ex-
iension ond
the holder on the
intoke ond
ex-
houst monifold.
Give the
hose the required shope by
bending
it slowly ond corefully. Above
oll, ploce
it into
the holcier so thot
there is
o suff icient distonce
(wide enough to
insert o
finger) between it
crnd the exhot-tst monifold.
Tightening of
cYlinder heod bolts
The cylinder heod
bolts should be tightened
in the running-in period before
the gosket gets
settled ond then
ofter every replocement of the
gosket, i.e., ofter
obout 1,000
kilometres' For
itre tightening procedure,
s9e
Chopter
-2'16'
Check'ilg of vilve
cleoronce ofter
every tighten'
ing of tlie
cylinder heod
is o
routine procedure
which must not be omitted.
Volve Cleoronce
For checking procedures
ond odiusting volues,
refer to ChoPter 2.13.
Alternotor V'belt
Tensioning
Loosen the
nuts of the bolts
in the olternotor
f longe (fostening
it to
the engine ond
the strut)
ond'of itre
bottJ holding down
the strut on
the
olternotor, ond
swing
oside (tip)
the olternotor'
Adiust the
belt so
thot it gives
woy 10- to
15 mm midwoy between the
belt pulleys
when
depressed lightly (ot
if o- weight of obout
2 kg were opplieal with
the
finger ot this point'
LoCk the
olternotor in
this position
by tighten-
ing properlY
oll the nuts.
Belt dimensions: 9x9.5x1,0O0 mm.
To Cleon the
Distributor
The contoct breoker points, the
cover, ond
the rotor orm
of the distributor must never
be
greosy or dirty. Scrope off
ony burns on the
distributor cover.
lf you hove
cleoned the
distributor with
oetrol, do
not ref it the cover till ofter
the petrol
hos comPletelY evoPoroted.
222
oll
the greose
into the beorings. Tighten
the
cop thoioughly so
thot it connot be worked
loose by vibrotion.
Air Cleoner -
cleoning ond
replocing of
filter
element
Unclosp the cover
fostening clips
and lift
owoy the lid. Depress the
cross broce in
the
1ock6t, rotote
it
slightly to disengoge it, ond
withdrow the filter
element. Wipe
cleon the
inside of the
iocket, cleon
the filter
element or
reploce it with o new
one, ond reclose the oir
cleoner proceeding
in reverse order.
Shoke ond
top the filtet element to
rid it of
clirt porticles, oncl
blow it off ond through with
Fiq.15314
-
Lubricotor of
Woter Pump Beorings

Fig.
15.3/8 -
Distributor Adiusting Elements
1 -
contoct holder, 2 -
rotor orm, 3- com,
4 -
distributor brocket, 5 -
distributor brocket
clomping bolt
Alwoys turn the engine clockwise to eliminote ony ploy
in the distributor drive geor
ond to
ovoid loosening of the bolt. To relieve the
com-
pression resistonce, it
is recommended to bock
off the sporking plugs.
b) Stroboscopic method:
When using this method, the volues of the
bosic ignition timing ond
the odvonce con-
trolled by the centrifugol timing control (for
its
diogrom refer to Chopter 13.5) should be odded
upwhile multiplying bytwo
the odded upvolues
occording to the diogrom. Any effect of the
vocuum control must be
eliminoted by discorr-
necting the respective hose (connecting
the
distributor vocuum unit with the corburettor).
The meosuring procedure
is indicoted by the
diognostic equipment itself.
To Adiust ldling Speed
Use the oir-correction screw (speed
cor-
rection screw). The speed decreoses when ro-
toting the screw clockwise ond increoses when
rototing it onticlockwise.
Adiust the idling speed in occordonce with
the tochometer ond within the limits specified
in the following porogroph "To
Adiust ldle
Run". The engine must be wormed-up
before
storting the odjusting procedure (see
olso the
following porogrophs) ond its ignition must be
in perfect
condition (distributor
contoct-breoker
points, sporking plug
electrodes, ond ignition
odvonce).
N o t e : For the bosic position
of the odiusting
screw refer to Chopter 2.19 - "Mointenonce
ond
Adiusting". Fig.
15.3/9 -
Air-correction Screw -
idling speed
correction screw
To Adiust ldle
Run
Acljust the contoct-breoker point
gop,
the gop
of the sporking plug
electrodes, ond
the ig-
nition odvonce. Then check
the
volve cleoronce
(if there is no cleoronce, odiust
the
volves),
cleon the oir intoke filter
element, ond moke
sure thot the occelerotor pedol link hos
the re'
quired free trovel -
see Chopter 12.2-
Use o needle to remove the plug
covering
the fost-idling screw
ond let the engine run ot
obout 2,000 r. p.
m. to ottoin on oil temperoture
of 70oC. Insert the probe
of the thermonreter
into the hole for the oil diPstick'
Now connect the
speed indicotor (tocho-
meter) ond the onolyzer of
corbon
.monoxide
(contoined in exhoust fumes). Use
the oir'cor-
iection screw (Fig.
15.3/9) to set the
speed
-r-?n
at 800 l;; t.
p. ni. cnd the fost-idling screw
(Fiq. 15.3/10) to odiust the
content of corbon
moioxide to 2*0.50/s or the oir-fuel proportion-
by-weight mixing rotio,
comporoble with
the
specif ied corbon monoxide content, to
1+.2 +$.t.
After about one minute of
the continued idle
running recheck the odiustment ond
correct it,
if necelsory. Close the hole
with the
fost-idling
screw by driving in o
new plug with
its bottom
outword.
Note: For the bosic position of
odiusting
screws refer to Chopter 2.19 - "Mointenonce
ond Adjustment".
To Lubricote Accelerotor Mechonism
Pour severol drops of oil into
the end of the
bowden coble tubing ond lubricote both
ioints
(on top ond below)- of the corburettor pull-rod
itself with obout one drop of oil. Then
depress
224

16.1
-
16.2
16.1 EQUTPMENT FOR SUBTROPTCAL
REGIONS
Stondord equipment of
cors for subtropicol
regions where the temperoture
does not exceed
+40oC, or where
increosed
cooling efficiency is
required generolly:
1. Copper rodiotor (copper
lominotions) for
oll types. 2. Oil cooler for oll types,
the some
os thot
fitted in the stondord
12O LS
model.
3. Cost finned
oil sump for oll types includ-
ing occessories (longer
oil pump
suction
stroiner ond longer oil dipstick), like thot fit-
ted in
stondord 120 L ond 120 LS models.
4. Oil temperoture signolling
telethermometer
(125+3'C) in cor type S 120 t-S.
The primory
element is mounted in o speciol connection fit-
ted to the oil cooler outlet. The worning lomp
on the instrument ponel
is red
ond without
o symbol (the
instrument ponel
hos o different
wiring for the connection of the worning lomp
to the terminol boord).
The coble of the primory
element is con-
nected to the terminol "10"
of the terminol
boord "111"
(morking occording to wiring dio-
grom in Fig. 13.1/1).
The
coble is led out ot
the engine together with
cobles to the engine
temperoture gouge
ond the oil pressure
switch.
16.2 EQUTPMENT FOR TROP|CAL
REGTONS
Stondord equipment of cors for tropicol re-
gions where the temperoture does not exceed f
50 oC,
or where on
extro high cooling
ef-
f iciency is required generolly:
1. Copper rodiotor (copper
lominotions) for
oll cor types.
2. Oil cooler for
oll types like thot fitted
in
stondord S 120 LS mod6l. The bolt
connecting
the rodiotor hose of the outlet from the engine
timing geor cover to the rodiotor hos, however,
no by-poss holes.
3. Cost finned
oil sump
for oll cor types -
refer to Chopter 16.1, porogroph
3.
4. Oil temperoture signolling telethermometer
(125+3oC) for types 120 L
ond 120 LS.
For
loyout see Chopter 16.1, porogroph
4.
5. Thermostot with o nominol opening tem-
peroture of +75oC for oll
types.
6- Increosed volume of coolont (storoge)
tonk -
4 litres for oll types.
7. Fr-rel pump
with o longer priming
lever.
It is instolled on the engine on two insuloting
pcrd s
Mointenonce of oir clecner:
The stondord oir cleoner filter element (the
some for oll cor types) must be
chonged in
dust-loden environments ofter every 2,000
kilo-
metres. On dusty roods in deserts, this element
must be inspected doily ond reploced doily, it
necessory.
Keep the coolont level
ot obout the middle
of the tonk or only slightly obove the middle.
The totol
volume is 13 5 litres opproximotely
234