Service Manual

ISB, ISBe and QSB (Common Rail [...] Pipe Plug
Section 17 - Miscellaneous - Group 17 Page 17-5
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Clean
Use spray cleaner, Part Number 3375433, or equivalent,
to clean the threads of the pipe plugs and threaded bores.
Inspect for Reuse
Inspect the threads of the pipe plugs for mutilation or
damage.
Inspect the threaded bores for damage.
Install
Apply a film of pipe plug sealant, Part Number 3375066,
or equivalent, to the threads.
Install the pipe plugs.
Tighten the pipe plugs. Refer to the adjoining chart for the
appropriate torque values.