Removing Flywheel Housing; Flywheel Reconditioning; Cleaning; Inspection - Navistar INTERNATIONAL DT 466 Service Manual

3. Slowly rotate the crankshaft. Record the total
indicator variation and compare the result to the
crankshaft pilot concentricity specification.

Removing Flywheel Housing

WARNING: To prevent serious personal
injury, possible death, or damage to the engine
or vehicle, do not remove any engine mounting
hardware until the engine is properly supported.
Figure 600 Removing flywheel housing
mounting bolts
1. Remove the eight mounting bolts that secure the
flywheel housing to the crankcase.
2. Use an assistant to help remove the flywheel
housing from the engine.
3. Inspect for cracks.

Flywheel Reconditioning

Cleaning

Clean the flywheel with a non-caustic solvent and dry
with filtered compressed air.
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
FLYWHEEL AND FLYWHEEL HOUSING
EGES-265-2
Follow all warnings, cautions, and notes.
© 2009 Navistar, Inc.

Inspection

1. Inspect the flywheel for cracks, heat checks, and
extensive scoring which would make it unfit for
further service. Replace or resurface as required.
2. Inspect ring gear for worn, chipped, or cracked
teeth. If teeth are damaged, replace ring gear.

Flywheel Resurfacing

WARNING: To prevent serious personal
injury, possible death, or damage to the engine or
vehicle, carefully examine the flywheel after
resurfacing for any cracks or heat checks.
Flywheel resurfacing information is provided
for guidance only. Navistar, Inc. assumes no
responsibility either for the results of any work
performed in accordance with this information or
for the ability of service personnel to detect heat
cracks. Any cracks or heat checks in the flywheel
could cause it to separate, creating the possibility
of injury to the operator or bystanders. If there
are any questions, do not use the flywheel.
CAUTION: Flexplates
transmissions cannot be resurfaced.
replace flexplate.
Flywheels used with manual transmissions may be
resurfaced to correct minor wear and scoring.
When resurfacing the flywheel, see dimension "A"
on figure below, to determine if the flywheel was
previously refaced or if it has adequate stock for
refacing.
379
used with automatic
If damaged,