Service Manual

Fuel Pressure Relief Valve ISB, ISBe and QSB (Common Rail [...]
Page 6-96 Section 6 - Injectors and Fuel Lines - Group 06
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Directions for service of a two-button quick-disconnect
fitting:
Remove the quick disconnect style fuel lines by pressing
in the locking tangs on both sides of the quick disconnect
fitting.
To aid removal, a screwdriver may be inserted between
the fuel line end and quick disconnect male union. After
pressing the opposing locking tangs, twisting the flat blade
of the screwdriver helps to remove the fuel line.
Install the quick-disconnect style fuel lines by pushing
quick-disconnect fitting onto male union until it clicks.
Directions for service of a banjo bolt fitting:
A sealing washer is used on both sides of a banjo fitting.
NOTE: New sealing washers must be used when
installing the banjo bolt fitting.
Installation:
Torque Value: 24 N•m [ 212 in-lb ]
Initial Check
CAUTION
Do not overtighten the component in an attempt to
stop a leak. Overtightening can result in increased
leakage. Always tighten fuel pressure relief valve
again to specification.
Check the pressure relief valve for leaks or other damage.
Setup
White Tang Fitting on Pressure Relief Valve
The purpose of this test is to check for a fuel rail pressure
relief valve that leaks excessive fuel to the fuel drain line.
Disconnect the fuel drain line from the fuel pressure relief
valve.
Attach the fuel pressure gauge adapter tool, Part Number
3164044, to the fuel pressure relief valve.