1980 SKODA 120 LS heater

1 1.8-11.10
11.8 HEATER
CONNECTING LINE
The line is o
combinotion of steel pipes
ond
rubber hoses. All connections must be tightened
with clips of
the strip
type (see
Fig. 11.411) or
the wire type (bleed
hose). Toke
core not to
overtighten the clips of the lotter type os there
is o risk of domoging the rubber.
The hose from the pipe
of the thermostot
body on the engine is routed to the heoter
through the f loor tunnel, the return bronch
possing ogoin through the tunnel to the pipe
of
the pump.
Arronge the hoses olong the sides
of
the floor tunnel so
thot they do not touch other
ports in the tunnel.
For detoiled informotion obout the routing of
the hoses refer to
Chopter 12.7.
11.9 otl COOLER
The oil cooler is stondord
equipment of
Skodo
120 LS models. lts construction resembles thot
of the rodiotor. lt is
instolled in the
engine
comportment (boy)
ond ottoched to the right-
-hond engine guord.
Speciol pressure
hoses
connect it with the engine. lts connecting
diogrom is shown in
Fig. 11.911.
As regords oil coolers for subtropicol ond
tropicol regions, refer to
Chopters 16.1
ond '16.2.
Fi9.11.9/1 -
Oil Cooler-to-engine Connecting
Diogrom
1 -
Outlet from engine-right-hond cooler socket,
2 -
Oil cooler, 3 -
Inlet into engine -
left-hond
cooler socket Removol ond
Refitting
Disconnect the hoses fronr the engine ond,
occording to circumstonces ond the purpose
of
the removol, detoch the oil cooler from
the
engine guord
or remove the engine guord
together with the cooler ond brocket. Empty the
oil contoined in the hoses ond the oil cooler
into o suitoble vessel. When refitting the oil
cooler into the cor,
proceed in occordonce with the circumstonces
of the removol. Secure the bolts conecting the
oil cooler with the engine guord
ond the brocket
(the brocket being locoted between the cooler
ond the guord)
with spring
woshers. Bolt down
the guord
over ploin
woshers ond use o spring
wosher for the bolted connection of the brocket
with the bodywork.
Use seoling
woshers when connecting hoses
to the engine ond the oil cooler, ond put
o seoling wosher olso under the bolt. Close the
bolt of the engine port
ot the flonge with the
pressure switch. Fosten the hoses so thot they
ore not stressed in their bends. The
hose from
the timing geor
cover should be routed horizon-
tolly ond the hose ot
the engine inlet so thot
it includes o downword ongle of obout 15 de-
grees with the horizontol plone. Top up
oil in
the engine.
11.10 COOLING SYSTEM DEFECTS,
TESTING, REPAIRS, AND
CLEANING
Defects ond Testing o) lf there is o marked loss of coolont, check
oll connections for leokoge. The
loss of coolont
con olso be coused by o leokoge of the rodiotor
(or heoter). lf the leokoge point
is not visible,
pressure-test the system without removing it
from the cor. Admit seoled-off oir ot o pressure
of 0.12 MPo
(1.2 kglcmz) into the filler neck ond look for
ploces where the coolont is seeping or dripping
out. Inspect not only the rodiotor but olso the
lreoter. An excessive loss of the coolont con be olso
coused by engine overheoting. In thot cose,
look for the couse of engine overheoting.
b) Points to check if the engine
is overheoting
- coolont level
- operotion of thermostots ond rodiotor fon
- condition of rodiotor (whether
clogged out-
side with dirt, or whether cooted inside with
scole)
c) Points to check if the engine does not worm
up properly:
- operotion of thermostots
DX
tfSJ
156

13.18 FOG
LAMPS AND
OTHER OPTIONAL
EQUIPMENT
Fog lomps
The fog lomps ore optionol equipment. When
f itting them on the cor, refer to the wiring dio-
grom while observing notionol regulotions (in-
ternotionol regulotions
hove not yet
been uni-
fied os for os individuol requirements ore
con-
cerned) ond the following informotion. In
Czechoslovokio, the Decree
No.100/1975 of the
Book of Stotutes, porogroph
51, is opplicoble. Switching
reloy
Use o switching reloy of the some design
os
for the ouxiliory heodlomps (on
cors with twin
heodlomps) or onother reloy operoting in the
some woy. Any ploce
con be chosen for its
in-
corporotion into the circuit.
Cobles For worning lomps ond the reloy
switching
circuit use cobles with o section of 0.75 mm2,
for the remoining electricol equipment 1.5 mm2
section cobles.
R,ELAY SWITCHING OF HEADLAMPS
Optionol equipment moy include on incorpor-
crted reloy for switching in the heodlomps. In
some countries (for
exomple Sweden), this
reloy is required by regulotions. For the re-
spective connections see the following wiring
diogrom.
1L7 1L7a DK 1582
Fig. 13.1812 -
Wiring Diogrom of Heodlomps
Using Switching Reloy -
odditionol incorpor-
otion into the bosic electricol equipment
( Fi9. 13.1/1)
147 -
Reloy of moin heodlomps
147o- Reloy of ouxiliory heodlomps
Heated Rear Window (1979
on)
Circuit Divide into two sections.
1. Heater switch with five positions from
left
to right. a) Heated screen b) off c) High speed
fan d) Slow speed fan e) Slow speed and
heated screen. 2. Power supply.
;;---A.i'
t..[9-+'--'o
B
A
ll
Y
5-
r369
Fig. 13.18i 1 -
Wiring Diogrom of Fog Lontps
1- Switch, 2-Fog lomps, 3- Worning lomp,
4 -
Switching reloy (A -
reloy closing circuit,
B -
fog lomps feeding circuit), 5 -
Fuse No.1 of
cor electricol equipment, 6 -
Fuse No. 4 of cor
electricol equipment, 7 -
Fuse No. 7 of cor
electricol equipment, 8 -
Fog toil light, I -
Switch of fog toil light, 10 -
Wcrning lomp
Switches Instoll them on the ouxiliory ponel
(stondord
port of the
cor) under the focio. Use
the switch
with the built-in worning lomp for the toil light.
Worning lomps Use the unconnected green
wo,rning lomp in
the instrument ponel
for fog lomps; the worning
lomp oppertoining to the toil light
is built-in
in the switch.
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196

14.13,2
WATER LEAKS
INTO
THE
PASSENGER COMPARTMENT
1. INGRESS OF
WATER FROM
THE FRESH
AIR BOX
EXISTING GROMMET USE OF PT NO 113-793801
Fig. 14.13/6
The dorne should stand up in the airbox and
should be partially
filled from inside with Dum
Dum.
The grommet
should be sealed to the body
using clear mastic.
di Jack socket. Seal the terminal base using Dum
Dum. The base sockets should be sealed with
clear mastic.
d) Water entering through Centre of heater. The
cover plate
over heater, motor fan if it is not
fully butted against the
shuttle (ie.
a gap)
seal
with
e) Body joints
inside airboxto innerwing. Ensure
sealant covers all joints
up to the under side of
the scuttle panel. 2. WINDSCREENS
Windscreen sealing
is in fact
sealing two joints
and they should be treated
in drfferent ways and
as separate joints.
1. Glass to Gasket
2. Gasket to body.
{afFit expanding cable here
(b)
Fis. 14/13.5
a) Box drain tubes (One
either side of car) Pt No.
1 13-790970 if
perished
replace, sealing
rubber to metal with clear mastic.
b) Heater bleed
tube/speedometer cable
grommets. lt is suggested that
the original
grommets are replaced with domed grommet
Pt No.113-793801.
":I
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Fig. 14.13/8
1. The joint
between the screen
and the rubber
is sometimes factory
sealed with a sealant varnish
which hardens and when disturbed
shatters; and
this in turn allows passages
forwaterfrom outside
to the interior. Application of glass
mastic sealer
will drive out the water and seal the joint'
lf,
however, this is not
achieved it
will be necessary
to remove the rubber and clean the seal faces and
the glass
in order to
ensure that the joint
can be
made. The expander of
the 105/1 20 range should be
fitted to the rubber after fitting the glass
and
rubber to the body using special tool MP8-161.
Carefully fit
the rubber to the glass,
stretchi ng it
evenly around the
whole glass
and not stretched
over the last side/corner to be
fitted.
After f itting the
screen/rubber assembly,
ensure that the glass
is centralised in the
apertu re. The expander can now
be fitted
using MP8-
161 expander fitting tool.
2.The second joint
is between the rubber
and
the body. We must stress that there are
two areas
of this joint,
one (a)
is a water drain channel and
the second (b)
serves two duties
of holding the
glass in the aperture and stopping the
ingress of
water into the passenger
compartments.
The water drain channel must not be filled with
any sealant and the drain holes at the base of the
aperture should be free of obstruction.
The water sealing properties
of the joint
can be
re-inforced by the application of mastic sealant
into the joint
(b) shown in the diagram.
Test for water leaks
Spray water onto and around screen being
tested, lingering a long time in
all positions, to
ascertain the point
of entry. Determine it
is
coming from the glass
rubber seal or the rubber
body seal then correct the leakage.
Fig. 14.13/7
214