Assembling Piston And Connecting Rod Assembly - Navistar INTERNATIONAL DT 466 Service Manual

Assembling Piston and Connecting Rod
Assembly
Figure 337 Installing piston rings (466 piston
shown)
NOTE: Make sure that the top side of both
compression rings (marked with a dot) are facing
up. The oil control ring may be installed with either
side facing up, if new.
1. Use a piston ring expander tool (Table 34) to install
the piston rings. Install the oil control ring first,
then intermediate compression ring, and finally
the top compression ring.
CAUTION: To prevent engine damage, orientation of
a reused piston skirt is very important due to wear
patterns. Install the skirt on the crown using the
original skirt orientation.
NOTE: New piston skirts may be oriented in either
direction due to piston skirt symmetry.
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
POWER CYLINDERS
Figure 338 Installing piston skirt on crown (570
engine only)
1.
2.
2. For 570 engines only: Install the piston skirt on
the crown. Make sure that the oil jet cutouts on
the skirt are facing away from the crown.
3. Lubricate the piston pin bore with clean engine oil.
EGES-265-2
Follow all warnings, cautions, and notes.
© 2009 Navistar, Inc.
Skirt
Crown
235