Service Manual

Injector ISB, ISBe and QSB (Common Rail [...]
Page 6-78 Section 6 - Injectors and Fuel Lines - Group 06
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CAUTION
The incorrect sealing washer can cause high-
pressure fuel leaks and/or performance problems
because of incorrect injector protrusion.
Verify the injector sealing washer is the correct thickness.
Sealing washers 1.5 mm [0.06 in] come in a flat and
saucer shape.
Install
Make sure the injector bore is clean and that only one (1)
sealing washer is installed on the injector nozzle.
The rounded edge of the injector hold-down clamp is
positioned toward the rocker levers. The fuel inlet hole on
the injector faces the intake side of the engine.
NOTE: The injector hold-down is removable on some
injectors.
Lubricate the injector o-ring with clean engine oil.
Align the injector in the cylinder head in the proper
orientation (fuel inlet toward the high-pressure fuel
connector).
Use the injector solenoid shipping cap. Make sure the
injector is seated in the injector bore.
NOTE: If the injector solenoid shipping cap is not used to
install the injector, be careful that pressure is not placed
on the wire terminals. Wire terminals could break off if
they are used to push on the injector.