Fuel tank and components
- Make
- Fiat
- Model
- Stilo Factory Service Manual
- Year
- 2001–2007
- Section
- Fuel tank and pipes › Fuel tank and components
Fuel tank and components
COMPOSITION
It is mainly composed of:
- an electric fuel pump (1)
- a fuel filter (2)
- a float type fuel gauge (3)
- a diaphragm pressure regulator (4)
- a mesh pre-filter (5).
COMPOSITION
It is mainly composed of:
- an electric fuel pump (1)
- a fuel filter (2)
- a float type fuel gauge (3)
- a diaphragm pressure regulator (4)
- a mesh pre-filter (5).
COMPOSITION
It is mainly composed of:
- an electric fuel pump (1)
- a fuel filter (2)
- a float type fuel gauge (3)
- a diaphragm pressure regulator (4)
- a mesh pre-filter (5).
Structure
Composed mainly of:
- an electric fuel pump (1)
- a fuel filter (2)
- a float type fuel gauge (3)
- a diaphragm pressure regulator (4)
- a mesh pre-filter (5).
SUBMERGED PUMP ASSEMBLY COMPLETE WITH FUEL GAUGE SENDER UNIT
The fuel pump forms a single assembly with the fuel gauge sender unit and fuel filter; the components cannot be replaced individually.
SUBMERGED PUMP ASSEMBLY COMPLETE WITH FUEL GAUGE SENDER UNIT
The fuel pump forms a single assembly with the fuel gauge sender unit and fuel filter; the components cannot be replaced individually.
LEVEL SENSOR ELECTRICAL VALUES
Level sensor resistance dependent on the quantity of fuel in the tank.
GAUGE ELECTRICAL VALUES
The figure below illustrates the electrical connections of the pump assembly, while the table indicates the sensor's resistance values in relation to the fuel level.
LEVEL SENSOR ELECTRICAL VALUES
Level sensor resistance dependent on the quantity of fuel in the tank.
Type
The fuel pump comprises a permanent-magnet electric motor (1) which controls the pump impeller (2), and a terminal-carrier cover (3), which contains the electrical and hydraulic connections.
The pump stage is of the single type with peripheral flow, with high performance under low voltage and temperature conditions.
Its advantages compared with pumps operating in accordance with the positive-displacement principle are:
- light weight.
- small in size.
ELECTRIC FUEL PUMP
The fuel pump comprises a permanent-magnet electric motor (1) which controls the pump impeller (2), and a terminal-carrier cover (3), which contains the electrical and hydraulic connections.
The pump stage is of the single type with peripheral flow, with high performance under low voltage and temperature conditions.
Its advantages compared with pumps operating in accordance with the positive-displacement principle are:
- light weight
- small in size.
ELECTRIC FUEL PUMP
The fuel pump comprises a permanent-magnet electric motor (1) which controls the pump impeller (2), and a terminal-carrier cover (3), which contains the electrical and hydraulic connections.
The pump stage is of the single type with peripheral flow, with high performance under low voltage and temperature conditions.
Its advantages compared with pumps operating in accordance with the positive-displacement principle are:
- light weight;
- small in size.
Electric fuel pump
The fuel pump comprises a permanent-magnet electric motor (1) which controls the pump impeller (2), and a terminal-carrier cover (3), which contains the electrical and hydraulic connections.
The pump stage is of the single type with peripheral flow, with high performance under low voltage and temperature conditions.
Its advantages compared with pumps operating in accordance with the positive-displacement principle are:
- light weight
- small in size.
Electric fuel pump
The fuel pump comprises a permanent-magnet electric motor (1) which controls the pump impeller (2), and a terminal-carrier cover (3), which contains the electrical and hydraulic connections.
The pump stage is of the single type with peripheral flow, with high performance under low voltage and temperature conditions.
Its advantages compared with pumps operating in accordance with the positive-displacement principle are:
- light weight
- small in size.
Electric fuel pump
The fuel pump comprises a permanent-magnet electric motor (1) which controls the pump impeller (2), and a terminal-carrier cover (3), which contains the electrical and hydraulic connections.
The pump stage is of the single type with peripheral flow, with high performance under low voltage and temperature conditions.
Its advantages compared with pumps operating in accordance with the positive-displacement principle are:
- light weight
- small in size.
Function
In the event of a crash, the inertia switch, fitted on the left of the driver's seat on the interior running board crossmember, breaks the fuel pump's connection to earth and consequently the supply to the fuel injection system.
INERTIA SWITCH
The inertia switch is fitted in the passenger compartment on the panel under the dashboard on the right hand side. In the case of an impact to the vehicle, it interrupts the connection to earth for the electric fuel pump and consequently the supply of fuel to the injection system.
INERTIA SWITCH
The inertia switch is fitted on the diver's side near the bolt fixing the running board to the front door pillar. In the case of an impact to the vehicle, it interrupts the connection to earth for the electric fuel pump and consequently the supply of fuel to the injection system.
Electric fuel pump
Specifications
- Capacity 110 l/h
- Pressure 3.5 bar
- Voltage 12 V
- Current = 7.5 A
Electric fuel pump
Specifications
- Capacity 110 l/h
- Pressure 3.5 bar
- Voltage 12 V
- Current = 7.5 A
Electric fuel pump
Specifications
- Capacity 110 l/h
- Pressure 3.5 bar
- Voltage 12 V
- Current = 7.5 A
Operating principle
A steel ball (1) mounted in a conical housing (2) is normally locked by the attraction force of an adjacent magnet.
Under specific acceleration loads, the ball is released from the magnetic lock and gradually emerges from the conical housing in an upward movement, following the angle of the cone.
Above the ball, there is a quick-trip mechanism (3) which forms the normally closed (N.C.) electric circuit.
When the mechanism is struck by the ball, it changes position from N.C. circuit to normally open (N.O.), breaking the fuel pump's earth circuit.
The switch can be reset by pressing a button protected by a soft cover (4).
After a crash, even if minor, if a smell of combustion or fuel leaks are perceived, do not reset the switch, but seek the cause of the fault and eliminate it, in order to avoid risks of fire. Otherwise, if there are no leaks and the vehicle can be restarted, press the button to reactivate the pump.
INERTIA SWITCH
A steel ball (1) mounted in a conical housing (2) is normally locked by the attraction force of an adjacent magnet.
For specific acceleration loads, the ball is released from the magnetic clip and gradually comes out of the conical housing in an upwards movement following the angle of the cone.
Above the ball, there is a quick-trip mechanism (3) which forms the normally closed (N.C.) electric circuit.
When the mechanism is struck by the ball, it changes position from an N.C. circuit to a normally open (N.O.) circuit, breaking the fuel pump's earth circuit.
The switch can be reset by pressing a button protected by a soft cover (4).
After a crash, even if minor, if a smell of combustion or fuel leaks are perceived, do not reset the switch, but seek the cause of the fault and eliminate it, in order to avoid risks of fire. Otherwise, if there are no leaks and the vehicle can be restarted, press the button to reactivate the pump.
INERTIA SWITCH
A steel ball (1) mounted in a conical housing (2) is normally locked by the attraction force of an adjacent magnet.
For specific acceleration loads, the ball is released from the magnetic clip and gradually comes out of the conical housing in an upwards movement following the angle of the cone.
Above the ball, there is a quick-trip mechanism (3) which forms the normally closed (N.C.) electric circuit.
When the mechanism is struck by the ball, it changes position from an N.C. circuit to a normally open (N.O.) circuit, breaking the fuel pump's earth circuit.
The switch can be reset by pressing a button protected by a soft cover (4).
The inertia switch, fitted on the right under the dashboard on the passenger side, interrupts the connection to earth for the fuel pump and consequently the supply to the injection system, in the case of an impact to the vehicle.
The inertia switch, fitted on the right under the dashboard on the passenger side, interrupts the connection to earth for the fuel pump and consequently the supply to the injection system, in the case of an impact to the vehicle.
The inertia switch, fitted on the right under the dashboard on the passenger side, interrupts the connection to earth for the fuel pump and consequently the supply to the injection system, in the case of an impact to the vehicle.
INERTIA SWITCH
After a crash, even if minor, if a smell of fuel or fuel leaks are perceived, do not reset the switch, but seek the cause of the fault and eliminate it, in order to avoid risks of fire. Otherwise, if there are no leaks and the vehicle can be restarted, press the button to reactivate the pump.
A steel ball (1) mounted in a conical housing (2) is normally locked by the attraction force of an adjacent magnet.
Under specific acceleration loads, the ball is released from the magnetic lock and gradually emerges from the conical housing in an upward movement, following the angle of the cone.
Above the ball, there is a quick-trip mechanism (3) which forms the normally closed (N.C.) electric circuit.
When the mechanism is struck by the ball, it changes position from an N.C. circuit to a normally open (N.O.) circuit, breaking the fuel pump's earth circuit.
The switch can be reset by pressing a button protected by a soft cover (4).
Even after an apparently minor impact, if there is a smell of fuel or leaks are noticed from the fuel system, do not turn the switch back on, but search for the cause of the problem and remedy it to prevent the risk of fire. Otherwise, if there are no leaks and the vehicle can be restarted, press the button to reactivate the pump.
A steel ball (1) mounted in a conical housing (2) is normally locked by the attraction force of an adjacent magnet.
Under specific acceleration loads, the ball is released from the magnetic lock and gradually emerges from the conical housing in an upward movement, following the angle of the cone.
Above the ball, there is a quick-trip mechanism (3) which forms the normally closed (N.C.) electric circuit.
When the mechanism is struck by the ball, it changes position from an N.C. circuit to a normally open (N.O.) circuit, breaking the fuel pump's earth circuit.
The switch can be reset by pressing a button protected by a soft cover (4).
Even after an apparently minor impact, if there is a smell of fuel or leaks are noticed from the fuel system, do not turn the switch back on, but search for the cause of the problem and remedy it to prevent the risk of fire. Otherwise, if there are no leaks and the vehicle can be restarted, press the button to reactivate the pump.
A steel ball (1) mounted in a conical housing (2) is normally locked by the attraction force of an adjacent magnet.
Under specific acceleration loads, the ball is released from the magnetic lock and gradually emerges from the conical housing in an upward movement, following the angle of the cone.
Above the ball, there is a quick-trip mechanism (3) which forms the normally closed (N.C.) electric circuit.
When the mechanism is struck by the ball, it changes position from an N.C. circuit to a normally open (N.O.) circuit, breaking the fuel pump's earth circuit.
The switch can be reset by pressing a button protected by a soft cover (4).
Even after an apparently minor impact, if there is a smell of fuel or leaks are noticed from the fuel system, do not turn the switch back on, but search for the cause of the problem and remedy it to prevent the risk of fire. Otherwise, if there are no leaks and the vehicle can be restarted, press the button to reactivate the pump.
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