Crankshaft Assembly - Navistar INTERNATIONAL DT 466 Service Manual

268

Crankshaft Assembly

1. Rotate the engine so the main bearing saddles
are facing up. Clean the bearing saddles with a
lint-free cloth. The supports must be free of oil. Do
not lubricate the back side of the bearing inserts.
WARNING: To prevent serious personal
injury or possible death, wear heat resistant
gloves when handling heated components.
2. With gears removed, heat the crankshaft gear and
oil pump drive spline, using a hot plate (Table 40),
to 188-202 °C (370-395 °F).
3. Position the slotted locating pin (5/32 x 5/16) onto
the crankshaft.
Figure 387 Installing crankshaft gear
1. Slotted pin, 5/32 x 5/16
2. Crankshaft
3. Oil pump drive spline
4. Crankshaft gear
4. Using gloves specifically designed for extremely
hot objects, install heated crankshaft gear first,
aligning the slotted pin with hole in crankshaft
gear. Press the gear into place holding against
crankshaft shoulder.
5. Slide the hot oil pump drive (splined) up against
the crankshaft gear (no orientation required).
6. Hold oil pump drive and crankshaft gear in
place until cool enough to sufficiently hold onto
crankshaft.
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
CRANKCASE, CRANKSHAFT, AND CAMSHAFT
Follow all warnings, cautions, and notes.
© 2009 Navistar, Inc.
Figure 388 Installing the number seven thrust
bearing
7. Install the thrust bearing into the number seven
upper bearing saddle.
tangs on the bearings are snapped into the
crankcase.
8. Install the remaining six upper bearing inserts into
the saddles. Make sure the locking tangs on the
bearings are snapped into the crankcase.
9. Apply Prussian Blue® to the crankshaft main
bearing journals.
Figure 389 Installing the crankshaft assembly
10. Using an appropriate lifting sling, carefully lower
the crankshaft onto the main bearing inserts in the
crankcase.
NOTE: Do not install the main bearing caps and lower
bearing inserts at this time.
11. Rotate the crankshaft 180 degrees (1/2 turn).
EGES-265-2
Make sure the locking