EGR COOL ER AND TUBING 99
Figure 102 EGR cooler pressure test
1. EGR cooler pressure test plates (2)
2. Air pressure regulator
3. Submerge assembly into a tank of water. Watch
for air bubbles coming out of the coolant ports.
Discard EGR cooler if any air bubbles are
produced from any ports.
Installation EGR System Components
NOTE: Assemble the following parts in order, but do
not torque any bolts until all components have been
installed and bolts threaded finger tight.
1. Install new O-rings onto each end of the EGR
cooler supply tube.
Figure 103 EGR cooler supply tube
2. Install the EGR cooler supply tube into the open
port in rear half of front cover.
3. Install a new gasket between the EGR cooler
assembly and exhaust manifold.
Figure 104 Installing the EGR cooler assembly
1. O-ring gasket
4. Install EGR cooler assembly by pushing in
towards the EGR cooler supply tube. Make sure
EGR cooler supply tube fully engages the EGR
cooler assembly. The cooler tube should be
trapped between the EGR cooler and the rear
half of the front cover.
Figure 105 EGR cooler support bracket
retaining bolt
1. EGR cooler bracket clamp
2. EGR cooler mounting bracket
3. Bolt, M12 x 120
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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