Banks Power Chevy_GMC Trucks: Duramax LB7 (Diesel ’01 - 04 6.6L) Intake- Big Hoss Intake Manifold System '01-07 - Manual (Page 11)

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the sensor removed, Deburr cut end
of tube on the cluster, rinse assembly
with solvent and blow dry. Reinstall
sensor
3.
Using a 45° double flaring tool,
perform the first operation of a 5 ∕
16
“
tube dia. double flare on the cut end of
the pump return tube. Compress the
tube with the flaring tool just enough to
create a “bulge “ to act as a hose barb
so a 5 ∕
16
dia. hose may be installed and
clamped.
CUSHION LOOP
CLAMP, 3 PLACES
FUEL RETURN
FROM INJECTORS
FUEL RETURN
FROM PUMP
FUEL RETURN
TO TANK
SHORT NIPPLE FITTING,
FUEL RETURN FROM
PRESSURE RELIEF VALVE
Figure 3