Service Manual

ISB, ISBe and QSB (Common Rail [...] Fuel Connector (Head Mounted)
Section 6 - Injectors and Fuel Lines - Group 06 Page 6-87
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Remove
Remove the fuel connector retaining nut.
Install the fuel connector remover, Part Number 3164025.
NOTE: When removing the fuel connector from the
cylinder head, care must be taken to make sure the
connector o-ring is not damaged.
Remove the fuel connector from the cylinder head.
Clean and Inspect for Reuse
Inspect the fuel connector. Look for burrs or deformation
around the inlet and outlet sides of the connector.
Check the edge filter for signs of plugging or material
contamination. Do not reuse a high-pressure fuel
connector if debris is present.
Check the o-ring for tearing or deterioration.
Inspect the outlet sealing surface of the high-pressure
connector for wear, an uneven seating surface, or signs of
leakage.
When a high-pressure fuel leak is present, small lines or
cuts in the connector will be eroded into the seating
surface.
The high-pressure connector and injector must be
replaced when this condition is observed.