Pressure Adjuster "4 - MOTO GUZZI CALIFORNIA JACKAL Werkstatt-Handbuch

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PRESSURE ADJUSTER "4"

The pressure adjuster is a device which is necessary for
maintaining a constant pressure jump on the injectors.
The pressure adjuster is a differential type with diaphragm,
and is pre-set during assembly at 3±0,2 bar.
Upon exceeding the pre-set pressure, the internal duct
opens to allow the excess fuel to flow back into the tank.
Note that to keep the pressure jump to the injectors
constant, the difference between the fuel pressure and
the intake manifold pressure must also be constant.
Disassembly:
• Partly remove the fuel tank from the seat on the
chassis as described in chapter 3 of this section;
• Loosen the sealing clamp and pull the fuel pipe "A"
out of the pressure adjuster;
B
• Unscrew the pressure adjuster body holder "C" and
remove it together with the pressure adjuster;
• To remove the pressure adjuster "D" from its body, it
is necessary to remove the seeger ring "E".
Reassembly:
Carry out the procedures in reverse order.
C
N.B.
On the model California EV 1
- 2000 until chassis number KD115749, the
pressure adjuster is different and it is placed on
the chassis under the fuel tank (see chapter 2 of
this section).
D
st
series years 1997
F
UEL SYSTEM