TM 5-2420-230-24-2
Fuel Supply Lines (006-024)
B3.9 and B5.9 Series Engines
Page 6-18
Section 6 - Injectors and Fuel Lines - Group 06
High-Pressure Fuel Line - Bosch In-Line Pump
NOTE: If removed, reinstall the support clamp in the origi-
nal position, and make sure the lines do not contact each
other or another component.
Loosen the vibration isolator capscrews so the fuel lines
can be easily moved.
NOTE: To prevent breakage to the fuel lines, they must be
connected to the injector and fuel injection pump in a ``free
state'' without forcing the connecting nuts. Since the fuel
lines are properly sized for specific application, bending
should not be necessary.
Install the fuel lines in the reverse order of removal.
Torque Value:
(Line Fittings)
24 Nm
[18 ft-lb]
(Support
Clamp)
6 Nm
[35 in-lb]
(Support
Bracket)
24 Nm
[18 ft-lb]
NOTE: The inside holes of the intake manifold are drilled
through and require liquid teflon sealant.
Vent (006-024-032)
Controlled venting is provided at the injection pump through
the fuel drain manifold. Small amounts of air introduced by
changing the filters or injection pump supply line will be
vented automatically if the fuel filter is changed in accor-
dance with the instructions.
However, manual bleeding will be required if one of the
following conditions exists:
The fuel filter is not filled prior to installation.
The fuel injection pump is replaced.
The high-pressure fuel line connections are loos-
ened, or the lines are replaced.
It is an initial engine start-up or start-up after an
extended period of no engine operation.
L-988
