Alfa Romeo 159 Training Material page 91

ENGINE
Fuel high and low pressure line
1. High pressure connection
2. Fuel pump fastening element
3. Fuel pump fastening shelf
4. High pressure fuel rail fastening element
5. Low pressure fuel rail fastening element
6. Mount fastening bracket
7. Mount fastening holes
FEATURES: The line joins the low pressure fuel line (fuel pressure up to 0.6 MPa) to the high pressure line (fuel
pressure 10 MPa) to the fuel injection rail.
ASSEMBLY
Position elements 1, 2 and 3 at the same time (high pressure pump connection and shelf).
Fit connector 2 to the high pressure pump.
Fit high pressure connections 1 and 4 by hand on both ends.
Fasten connection 1 to the pump at the necessary torque.
Fasten connection 4 to the rail at the necessary torque.
Fit connection 5 to the low pressure line at the necessary torque.
Position the shelf on mounts 6 and 7.
Fasten onto mounts 6 and 7 and onto the shelf 3.
REMOVAL
Loosen connections 1, 3, 4, 5, 6, 7.
Move the T fasteners from the mounts 6 and 7.
Release connector 2 from the high pressure pump.
ADDITIONAL INFORMATION The high pressure pump connection screw is coated with wax to provide the right
torque during assembly. Repeat the procedure when refitting.
1. Wax-coated screw
Traccia Didattica Alfa 159-en-ridotta
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