Piston Cooling Tubes; Old Piston Cooling Tubes; New Piston Cooling Tubes - Navistar INTERNATIONAL DT 466 Service Manual

242
CAUTION: To prevent
permanent marker to
components and their orientation. Do not use paint
or temporary markers.
2. Using a permanent marker, mark each connecting
rod bolt and put another mark on a 15 mm 12 point
socket directly in line with the mark on each rod
bolt.
3. Mark the surface of the connecting rod cap 90°
clockwise from each mark on the rod bolt.
4. Align mark on socket with mark on the rod bolt and
install socket on the rod bolt.
5. Torque-to-yield each M11 connecting rod cap bolt
by rotating bolt exactly 90 degrees clockwise (1/4
turn). The mark on the socket and bolt should
be aligned with the mark on the surface of the
connecting rod cap.

Piston Cooling Tubes

Old Piston Cooling Tubes

NOTE: The crankshaft may need to be rotated to
access some piston cooling tubes.
Figure 354 Old piston cooling tube
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
POWER CYLINDERS
engine damage, use
identify internal engine
EGES-265-2
Follow all warnings, cautions, and notes.
© 2009 Navistar, Inc.
Figure 355 Old piston cooling tube
CAUTION: To prevent engine damage, the piston
cooling tubes use a special patch type mounting bolt.
Do not substitute.
NOTE: Piston cooling tubes are self aligning.
1. Place piston cooling tubes onto crankcase
mounting pad.
2. When installing the piston cooling tube bolts (M6
x 16), do A or B below:
A. Install new piston cooling tube mounting
bolts (patch type).
B. Remove oil residue, and apply Loctite®
#242 to the threads of existing piston
cooling tube mounting bolts (patch type),
and install M6 x 16 bolts.
3. Tighten M6 x 16 bolts to the special torque value
(Table 33).

New Piston Cooling Tubes

NOTE: The crankshaft may need to be rotated to
access some piston cooling tubes.
CAUTION: To prevent engine damage, the correct
piston cooling tubes must be installed.
NOTE: The non-knurled piston cooling tube is
required for DT 466 engines.
cooling tube is required for DT 570 and HT 570
engines.
The knurled piston