Crankshaft, Main Bearings, and Flywheel
02
040
8
RG,RG34710,155 –19–05SEP02–1/1
Check Flywheel Face Flatness
R22213 –UN–14DEC88
Measuring Flywheel Face Flatness
1. Mount dial indicator base on flywheel housing. Position
pointer to contact driving ring mounting surface. Do not
allow pointer to contact driving ring mounting holes.
IMPORTANT: Maintain constant end pressure on
crankshaft to hold shaft against thrust
bearing when measuring flywheel face
flatness.
2. Rotate flywheel by turning crankshaft. Read total dial
indicator movement. Resurface flywheel face or
replace as required.
Specification
Flywheel Face Flatness—
Maximum Variation 0.23 mm (0.009 in.).....................................................
Maximum Variation per 25 mm
(1.0 in.) of Travel 0.013 mm (0.0005 in.)....................................................
RG,RG34710,156 –19–27JUL99–1/1
Remove Flywheel
RG8134A –UN–05DEC97
Removing Flywheel
A—Cap Screws
B—Threaded Guide Pins
CAUTION: Flywheel is heavy. Use proper lifting
procedures to avoid personal injury.
NOTE: SAE 1 flywheel housing must be removed before
flywheel can be removed from engine. (See
REMOVE AND INSTALL FLYWHEEL HOUSING,
later in this group.)
1. Remove two flywheel attaching cap screws (A), and
install two guide pins in their place.
2. Remove remaining cap screws, and carefully pull
flywheel from crankshaft.
NOTE: Threaded guide pins (B) may also be used to
ease handling of flywheel.
Once flywheel is removed, JDG976 Crankshaft
Front Rotation Adapter can be used to rotate
crankshaft if necessary.
CTM100 (06APR04)
02-040-8
P
OWER
T
ECH
10.5 L & 12.5 L Diesel Engines
040604
PN=204
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