TM 5-3810-300-24&P-3
1.5
Flywheel Housing
Remove and discard the crankshaft rear oil seal. Install a
4. Thread four pilot studs J 1927-01 into the cylinder
block to guide the housing in place (Fig. 2). Use oil seal
expander J 22425 (standard size seal) or expander J
Install Flywheel Housing
4195 and handle J 8092 (oversize seal) on the end of the
crankshaft to pilot the oil seal on the crankshaft.
1. Lubricate the gear train teeth with clean engine oil.
5. With the housing suitably supported, position it over
2. Affix a new housing-to-end plate gasket to the
the crankshaft and up against the cylinder block rear end
flywheel housing. Also, if an idler gear hole spacer is
plate and gasket. Remove the oil seal expander.
used, attach the gaskets to the hub or the spacer or
both, as required. NO gasket is used with the current
6. Refer to Fig. I and install the six 3/8"-16 bolts with
flat washers in the tapped holes of the idler gear hub and
idler gear hole spacer, finger tight. Remove the pilot
NOTE: On certain flywheel housings, the
studs.
idler gear hole spacer is cast integrally in the
housing, opposite the idler gear (Fig. 3). As
NOTE: If the idler gear hole spacer is
a result of this integral cast design, a shim
integrally cast into the housing, be sure the
must be installed between the flywheel
shim is in place.
housing and the cylinder block end plate.
Use grease to hold the shim on the spacer
A self-locking type bolt and steel washer are currently
during installation of the flywheel housing.
being used to attach the flywheel housing to the idler
gear hub and hole spacer. With this type bolt, the
additional operation of securing the bolts with a lock wire
is eliminated, inasmuch as the head of the bolt is so
designed that it will lock itself to the attaching member
when the specified torque is applied.
Fig. 2 - Remove or Installing Flywheel Housing
Fig. 3 - Idler Gear Hole Spacer Shim
3. Coat the lip of the oil seal lightly with engine oil
(single-lip seal) or vegetable shortening (double-lip seal).
Do not scratch or nick the sealing edge of the oil seal.
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