Service Manual

Fuel Drain Lines ISB, ISBe and QSB (Common Rail [...]
Page 6-28 Section 6 - Injectors and Fuel Lines - Group 06
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NOTE: The fitting for the injector return flow on the back
of the cylinder head contains a check valve to maintain
proper back pressure. Fuel exiting the check valve returns
to the combined fuel manifold then to the fuel cooler and
fuel tank.
Install the fitting using new sealing washers.
Torque Value: 24 N•m [ 212 in-lb ]
Install the other end of the fuel line to the combined
manifold using a banjo bolt and new sealing washers.
Torque Value: 24 N•m [ 212 in-lb ]
Install the fuel line from the fuel pressure relief valve to
the combined fuel manifold using new sealing washers
and banjo bolt.
Torque Value: 24 N•m [ 212 in-lb ]
Install the fuel line from the high-pressure fuel pump to the
combined fuel manifold using new sealing washers and
two banjo bolts.
Torque Value: 24 N•m [ 212 in-lb ]
Install the fuel line from the combined fuel manifold to the
fuel cooler. Use a second wrench at the fuel cooler to
prevent damaging the cooler when tightening the fitting.
Torque Value: 24 N•m [ 212 in-lb ]
Open the fuel supply and return valves.
Prime the fuel system. Refer to Procedure Procedure
005-016
Operate the engine and check for leaks.
Finishing Steps
Attach all p-clip mounting capscrews.
WARNING
Batteries can emit explosive gases. To reduce the
possibility of personal injury, always ventilate the
compartment before servicing the batteries. To
reduce the possibility of arcing, remove the negative
(-) battery cable first and attach the negative (-)
battery cable last.
Connect batteries.
For marine applications, Open the fuel inlet and return
valves.