Mitsubishi 3000GT Service Manual page 398

Evaporative emission
Flare nut
Sedure side Z03YM3
FUEL SUPPLY
REMOVAL SERVICE POINT
(A, HIGH PRESSURE FUEL HOSE DISCONNECTION
Disconnect the hose from body main pipe first and then from
fuel pump.
Caution
Cover the hose connection with rags to prevent splash
of fuel that could be caused by some residual pressure
in the fuel pipe line.
INSTALLATION SERVICE POINTS
ASSEMBLY INSTALLATION
Align the three positioning projections of the packing with
the holes in the fuel pump and fuel gauge unit assembly.
(1) If the pipe has a stepped part, connect the vapor hose
to the pipe securely, up to the stepped part, as shown
in the illustration.
(2) If the pipe does not have a stepped part, connect the
vapor hose to the pipe securely, so that it is the standard
value.
Standard value: 25-30 mm (l-O-1.2 in.)
INSTALLATION
Install so that the fuel tank pressure control valve is facing
in the direction shown in the illustration.
Temporarily tighten the flare nut by hand, and then tighten
it to the specified torque, being careful that the high pressure
fuel hose does not become twisted.
Caution
When tightening flare nut, be careful not to bend or twist
line to prevent fuel pump from damage.