comp FIAT MAREA 2001 1.G Service Manual

Marea-Marea Weekend H nD Engine
2000 range (Q) Fuel feed system
10.
1. Grip the outer casing of the regulator, partly
extract it and, at the same time, rotate it so
that the fins (1) which contain the open­
ings for the fixing bolts are positioned hori­
zontally.
NOTA Do not grip the pressure regulator by
the electrical connector.
Insert the blades of two screwdrivers by the
fins (1) and very carefully extract the pressure
regulator.
NOTE Do not use a screwdriver or other
tools in the seal areas between the
regulator and the pressure pump.
2. Pressure regulator
1. High pressure seal (black or green)
2. Anti-extrusion seal (white)
3. Low pressure seal (black)
NOTE // the high pressure seal accidentally
remains inside the pump casing, turn
the ignition key to the ON position
(engine switched off); this will op­
erate the pump shaft and a small
amount of fuel and the seal will come
out.
NOTE Do not, under any circumstances, use any tools for extracting the high pressure seal and this
could damage the inner surface of the pump.
Refitting
- Suction off any impurities present inside the pump casing.
- Check the condition of the three seals and make sure they are correctly positioned before fitting.
- Slightly lubricate the outer surface of the three seals using vaseline. Do not, under any circumstances,
lubricate the other surfaces of the pressure regulator.
- Insert the pressure regulator in its housing on the pump, pressing gently and, at the same time, rotating
the regulator until it is is contact with the surface of the pump.
NOTE Do not, under any circumstances, use a hammer or other tools when fitting the pressure regula­
tor.
- Fit the two bolts fixing the pressure regulator to the pump acsing. and tighten them to a torque of
0.9±0.1 daNm.
- Reconnect the electrical connector and complete the refitting of the remaining components reversing the
order of the operations carried out for the removal.
Copyright by Fiat Auto |& yt-01 - Update 37

Marea- Marea Weekend
2000 range CJ
Auxiliary Units
Index
Compressor ( 1596 engine)
Compressor ( 1910 JTD)
Compressor ( 1998 engine)
Specifications
50
page
1
2
3
4
FOR ANYTHING NOT DEALT WITH,
REFER TO THE BASIC MANUAL, SECTION 50.
Copyright by Fiat Auto

Marea- Marea Weekend
2000 range ©
Auxiliary Units
Climate control
50
COMPRESSOR ( 1596 engine)
The compressor fitted on this version is the HR V5 variable capacity type, illustrated in the diagram below,
and consists of:
- a crankcase (7) which contains the bores in which the pistons (4) slide;
- an assembly comprising a shaft on which an inclined plate (6) is fitted on which a disc (2) guided by
a pin (5) integral with the five connecting rods (3) controlled by the pistons (4) rotates on roller bear­
ings;
- a cylinder head which contains the intake and supply ducts as well as the housing for the regulation
valve (9);
- a plate (8), between the crankcase and the cylinder head, which contains the inlet and supply valves;
- a pulley assembly with an electro-magnet coupling (1).
1. Pulley with coupling
2. Disc
3. Connecting rod
4. Piston
5. Disc guide pin
6. Inclined plate
7. Crankcase
8. Valve holder plate
9. Regulation valve
10. Valve control bellows
Operation
The alternating drive required for the sliding of the pistons in the bores/liners is produced by the rotary
motion of the inclined plate (6), whilst the variation in the capacity, dependent on the piston stroke, is
chieved through the alteration in the angle of the disc (2) controlling the connecting rods (3).
The inclination of the above mentioned disc depends on the difference in pressure between the intake
duct and the inside of the compressor. This difference, measured by the bellows (10), operates the regu­
lation valve (9) and consequently causes the movement of the disc (2).
When the request for conditioned air is high, the regulation valve (9) is positioned in such a way that it
uncovers an opening which places the intake side in contact with the inside of the compressor; as, in this
case, there is no difference in pressure, the compressor operates at maximum capacity corresponding to
the position of the disc illustrated in the previous section.
When the air request is less, the valve is positioned so that the supply section is in contact with the crank­
case and, at the same time, it stops the flow between the latter and the intake side activated previously.
Copyright by Fiat Auto 1

Auxiliary Units
Climate control
Marea-Marea Weekend
2000 range O
50
COMPRESSOR (1910 JTD)
The compressor fitted on this version is the SANDEN SD7V16 variable capacity type.
The capacity of the compressor varies starting from the maximum value (161.3 cm^/rev) and is gradually
reduced (up to 10.4 cm^/rev) according to the system load variations. - changed outside temperature
and/or humidity conditions or sharp variations in the engine load.
This solution is defined as "unlimited variable capacity".
The compressor is the alternating piston type: the variation in capacity is achieved by tilting the connect­
ing rod holder plate with a consequent variation of the piston stroke: the movement of the plate is acti­
vated by an internal regulation valve according to the balance of pressure upstream and downstream of
the compressor. In particular, a low intake pressure involves the shuttering of the compressor (reduced ca­
pacity), whilst a high pressure involves operation at maximum power (maximum capacity).
7 6 4 3 2
5 9
1 Diaphgram valve
2 Pistons
3 Connecting rods
4 Connecting rod plate
5 Shaft
6 Pin
7 Arm
8 Slide
9 Guide
Pa Intake pressure
Pi Pressure inside the compressor
Pm Supply pressure
Operation
The SD7V16 compressor is illustrated in the diagram; it consists of seven pistons (2) and connecting rods
(3) fastened to a connecting rod holder plate (4). The rotary motion of the plate (4), on the shaft (5)
produces the alternating movement of the pistons.
A change in the plate angle allows an alteration in capacity: maximum inclination (as in the diagram) for
maximum capacity; almost zero inclination (vertical position) for minimum capacity (virtually nil).
The plate (4) rotates around the pin (6) hinged on the shaft (5) arm (7).
The movement of the plate (4) in relation to the shaft (5) takes place by means of splining made from a
low resistance material.
The plate (4) slides below along a guide (9) via a runner (8) made from a low friction material.
The diaphragm valve (1) controls the flow rate adjustment according to the difference between Pa (intake
pressure) and Pi (pressure inside the compressor).
N.B. the solution adopted for this compressor is designed to keep the internal pressure Pi constant, with
advantages in terms of ease of adjustment and quiet, smooth operation.
2 Print n° 506.763/23

Marea-Marea Weekend
2000 range ©)
Auxiliary Units
Climate control
50
COMPRESSOR ( 1998 engine)
The compressor fitted on this version is the SANDEN SD6V12 variable capacity type.
The capacity of the compressor varies starting from the maximum value (125.1 cnrfVrev) and is gradually
reduced (up to 6.2 cm /rev) according to the system load variations. - changed outside temperature
and/or humidity conditions or sharp variations in the engine load.
This solution is defined as "unlimited variable capacity".
The compressor is the alternating piston type: the variation in capacity is achieved by tilting the connect­
ing rod holder plate with a consequent variation of the piston stroke: the movement of the plate is acti­
vated by an internal regulation valve according to the balance of pressure upstream and downstream of
the compressor. In particular a low intake pressure involves the shuttering of the compressor (reduced ca­
pacity), whilst a high pressure involves operation at maximum power (maximum capacity).
1. Diaphgram valve
2. Pistons
3. Connecting rods
4. Connecting rod plate
5. Shaft
6. Pin
7. Arm
8. Slide
9. Guide
Operation
The operation is the same as described for the previous SANDEN 7V16 compressor.
Copyright by Fiat Auto 3

Auxiliary Units
Climate control
50
SPECIFICATIONS
TABLE SHOWING QUANTITIES OF OIL AND GAS FOR CLIMATE CONTROL SYSTEM
The table below summarizes the types of oil and the quantities of oil and coolant.
ENGINE TYPE COMPRESSOR TYPE OF
OIL
QUANTITY
OF OIL (cm3)
QUANTITY
OF GAS (g)
1596 16V HR V5 UNICON RL
488 265 600 ± 25
1998 20V SD6V12 SP10 135 600 ± 25
1910 JTD SD 7V16 SP10 135 600 ± 25
FOR ANYTHNING NOT DEALT WITH,
REFER TO THE BASIC MANUAL, ASSEMBLY 50.
Marea-Marea Weekend
2000 range ©
4 Print n' 506.763/23

Marea-Marea Weekend Electrical system
2000 range (§) Index
55.
page
PROTECTION AND SAFETY DEVICES
- Protection and security devices 1
- Junction unit 4
- List of fuses and main protected circuits 5
- Supplementary fusebox 8
LOCATION OF VEHICLE COMPO­
NENTS
- Location of vehicle relays and fuses. 9
- Location of control units and testing 12
sockets
CONTROL PANEL
- Control panel (except AT) 14
- Control panel (AT) 17
RADIO SYSTEM
- General description 19
- Warnings 23
- Description of controls 24
- Operation 33
- EXPERT control level 40
- Coding 44
- Compact Disc Player 46
- Cassette Player 47
- Multiple Compact Disc player 49
- Advice and precautions 51
Copyright by Fiat Auto XII-00 Supersedes previous, version

Electrical equipment
Protection and safety devices
Marea- Marea Weekend
2000 range ©)
55.
Main supplies wiring diagram (petrol engine types)
Component key
3B/C Power fusebox
3A/D Supplementary fusebox
4 Junction unit
10 Engine battery earth
10A Bodyshell battery earth.
11 Battery
12 Ignition switch
96 Power fuse protecting A.B.S
129 Engine cooling fan protection power fuse.
332 Ignition activated power relay.
(*) See table on previous page.
2 Print n° 506.763/23

Marea- Marea Weekend
2000 range ©)
Electrical equipment
Protection and safety devices
55.
Main supplies wiring diagram (diesel engine types)
Component key
3B/C Power fusebox
3A/D Supplementary fusebox
4 Junction unit
10 Engine battery earth
10A Bodyshell battery earth
11 Battery
12 Ignition switch
96 Power fuse protecting A.B.S
129 Engine cooling fan protection power fuse.
129A Power fuse protecting engine cooling fan
no.2
201 Heaer plugs control unit
332 Ignition activated power relay.
Copyright by Fiat Auto 3

Electrical system
Protection and security devices
Marea-Marea Weekend
2000 range Q
55.
SUPPLEMENTARY FUSEBOX
Many shunt fuses are found under the facia
just above the junction control unit
The fuses are grouped in two special multiple
connectors, one for the front wiring the other
for the facia wiring, according to a pre-set
position and located as shown in the figure:
3A: front wiring
Fuse Protected circuit Amp
- F1 Fuse protecting ignition activated services (15/54) 7.5
- F2 Fuse protecting headlamp washers 20
- F3 Fuse protecting injection and CODE, fan 7.5
- F4 Fuse protecting ABS 10
- F5 Fuse protecting compressor and air conditioner 7.5
- F6 Fuse protecting injection memory and CODE, fan 7.5
3D: facia wiring
Fuse Protected circuit Amp
- F1 Fuse protecting ignition activated services (INT) 7.5
- F2 Fuse protecting foglamps 15
- F3 Fuse protecting rear electric windows 25
- F4 Fuse protecting front electric windows 25
- F5 Fuse protecting sunroof, seats, cigarette lighter 30
- F6 Fuse protecting airbag 10
8 Publication no. 506.763/24