356 FUEL SYSTEM
High-pressure Oil Pump and IPR Valve Assembly
IPR Valve Assembly
Figure 562 IPR valve assembly
1. O-ring seal #015 (green)
2. Back-up ring seal
3. O-ring seal #016 (green)
4. O-ring
5. IPR valve assembly
1. Install new O-rings onto IPR valve assembly.
Figure 563 Installing th
eIPRvalve
2. Install the IPR valve into the high-pressure pump
assembly finger tight. Use the IPR removal /
installation tool (Table 48) and a torque wrench
to tighten IPR valve to the special torque value
(Table 47).
High-pressure Oil Pump
NOTE: A high-pressure pump inlet filter service kit
is available. See (TSI-09-12-02 High-pressure Pump
Assembly Inlet Filter Service Kit, page483).
1. Use petroleum jelly to hold a new O-ring gasket
intotherecessedgroove,locatedonthebackside
of the front cover.
2. Position high-pressure oil pump making sure gear
meshes with upper idler gear.
Figure 564 Installing the high-pressure pump
assembly
EGES-265-2
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Follow all warnings, cautions, and notes.
© 2009 Navistar, Inc.
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