Electrical Fuel Pump "1 - MOTO GUZZI V 11 SPORT Workshop Manual

A
B
D
B
C
D
E
F
G
H
I
L
M
N
O
P
8
C
A
F
E
4

ELECTRICAL FUEL PUMP "1"

The motorbike is equipped with a volumetric roller type
electrical pump whose motor is immersed in the fuel.
The motor is composed of brushes with permanent magnet
excitation.
When the impeller rotates, driven by the motor, it generates
volumes which move from the intake gate to the delivery
gate. These volumes are delimited by rollers which adhere
to the external ring while the motor is rotating. The pump
is fitted with a check valve which is necessary in order to
prevent the fuel circuit from emptying when the pump is
not working.
It is also equipped with an pressure valve, which short-
circuits the delivery with the intake when the pressure
exceeds ~5 bar, thereby preventing the electrical motor
from overheating.
N.B.
Always make sure the system is clean when
disassembling and assembling the piping and
the components.
Disassembly:
• Remove the tank as described in chapter 3 in this
section;
• Disconnect the two connections "A" and "B" from the
pump, taking note of their position for subsequent
reassembly;
• Remove the fuel inlet pipe "C" from the pump by
loosening the respective clamp;
• Remove the fuel outlet pipe "D" from the pump by
loosening the respective clamp;
• Unscrew and remove the two nuts "E";
• Remove the pump "F" from the chassis.
Reassembly:
Carry out the procedures in reverse order.
N.B.
In some motorbikes the position of the filter and
the fuel pump can be inverted.
F
UEL SYSTEM