hose FIAT MAREA 2001 1.G User Guide

Marea-Marea Weekend
2000 range (j§)
1
4F029XJ02
Engine
Fuel feed system
10.
RECIRCULATION CIRCUIT FOR CRANK-
CASE VAPOURS (BLOW-BY)
The control of the oil vapour emissions is
achieved through a separator (1) (function
carried out by the tappet cover) which collects
the vapours released by the crankcase in the
pipe (2).
The difference in temperature between the
separator and the oil vapours causes partial
condensation.
The vapours which have not condensed are
sent, via the pipe (3), to the turbocharger air
intake hose.
The adjustment valve, consisting of a spring
(1) and a diaphragm (2), on the tappet cover
makes it possible to prevent intake.
When the vacuum values inside the tappet
cover exceed a pre-set limit, the diaphragm
moves downwards sealing the duct from the
crankcase.
Copyright by Fiat Auto 29

Engine
Fuel feed system
Marea-Marea Weekend
2000 range ©
THROTTLE CASING
Removing-refitting
- Remove the battery from the engine com­
partment, then proceed as described below;
1. Remove the engine oil filler cap (1), then
undo the fixing nuts (2) and remove the
sound insulation cover (3).
2. Disconnect the vacuum intake pipe (1)
from the vacuum unit acting on the retain­
ing band. Also disconnect the pipe (2)
connected to the vacuum reservoir.
3. Undo the bolts fixing the connector pipe
between the throttle casing and the hose
connected to the intercooler.
4. Disconnect the oil vapour recovery pipe
from the tappet cover, acting on the re­
taining band.
30 Print n° 506.763/25

Engine
Fuel feed system
JTD Marea-Marea Weekend 9
2000 range ©
E.G.R.
TOR
VALVE SELF-ADJUSTMENT MO-
Removing-refitting
- Disconnect the negative battery lead, then
remove the sound insulation shield follow­
ing the instructions in the previous para­
graphs.
1. Disconnect the electrical connection (1),
then loosen the bolts fixing the E.G.R.
valve self-adjustment motor and remove it.
E.G.R. VALVE HEAT EXCHANGER
Removi ng - ref itti ng
- Remove the throttle casing and the E.G.R.
valve following the instructions in the pre­
vious paragraphs.
2. Remove the hose connecting the throttle
casing to the intercooler.
- Drain the engine coolant.
3. Disconnect the pipes shown in the figure
from the thermostat, acting on the retaining
bands, then disconnect the electrical con­
nection (1) for the engine coolant tem­
perature sensor.
4. Undo the bolts fixing the heat exchanger
pipe to the exhaust manifold.
32 0"" Und«r 4 Print n° 506.763/25

Electrical equipment
Junction unit
Marea-Marea Weekend
2000 range ©
55.
Junction unit
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Front view of control unit
and location of fuses
The connectors cannot
be connected incor­
rectly as each has its
own unique shape. The
letters identifying the
connectors are the same
as those used in the
wiring diagrams .
NOTE connectors A, C and D: are connected to the front lead.
connectors B,F, I, J and H are connected to the facia lead
connectors E and G are connected to the rear lead
Rear view of control unit
and location of relays.
E1. Switch discharge relay for
starting (30A)
E2. Horn relay (20A)
E3. Heated rear windscreen relay
(30A)
4 Print n° 506.763/23