TM 5-3895-346-14
FLYWHEEL
ENGINE OVERRAUL
FLYWHEEL
The flywheel is attached to the rear end of the crankshaft with six self- locking bolts. A scuff plate is used
between the flywheel and the boltheads to prevent the boltheads from scoring the flywheel surface.
A steel ring gear, which meshes with the starting motor pinion, is shrunk onto the rim of the flywheel.
The flywheel is machined to provide true alignment with the clutch or a power takeoff driving ring, and the
center bore provides for installation of a clutch pilot bearing. The clutch or power takeoff driving ring is bolted to
the flywheel.
An oil seal ring, which provides an oil-tight connection between the crankshaft and the flywheel, is fitted into a
groove on flywheels used with hydraulic couplings, clutches, or Torqmatic converters.
The flywheel must be removed for service operations such as replacing the starter ring gear, crankshaft, or
flywheel housing. On torque converter units, the flywheel is part of the torque converter assembly and is cov-
ered in the applicable converter ser- vice manual.
Remove Flywheel (Transmission Removed)
1.
If a clutch housing is attached to the flywheel housing, remove the flywheel as follows:
a.
Remove the flywheel attaching bolts and the scuff plate.
b.
Lift the flywheel off the end of the crankshaft and out of the clutch housing.
2.
If a clutch housing isn't used, remove the flywheel as follows: a. Remove the flywheel attaching
bolts and the scuff plate while holding the flywheel in position by hand, then reinstall one bolt.
WARNING
When removing or installing the attaching bolts, hold the fly- wheel firmly against the crankshaft by hand to
prevent it from slipping off the end of the crankshaft. The flywheel is NOT doweled to the crankshaft.
b. Attach flywheel lifting tool J 6361-01 to the flywheel with two 3/8-16 bolts of suitable length as
shown in Fig. 1 or use tool J 25026.
Figure 1. Removing Flywheel
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