III. Engine Servicing Procedures
U
L-Series Diesel 24
Injector Service (continued)
Note:
Before assembling the injector,
perform a needle slide test to ensure that
there is no obstruction that could cause a
fuel leak.
Insert the body nozzle holder to center the
nozzle in the retaining nut. For reassembly
torque specifications, see Appendix
“Nozzle Holder Tightening Standards.”
NOTE: Use a flare nut/crowfoot socket
on the torque wrench.
When installing nozzle assembly into the
cylinder head, be sure to replace the
gaskets and washers, as they can only be
used once.
NOTE: The blue side on the
corrugated washer faces the nozzle.
Tighten the retaining nut with a torque
wrench to 29-36 lb. ft. (39-49 Nm).
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