w. Open valves for coolant in and out of the
heater element if winterization kit is installed
x. Install electric starter, tool box and fuel
burning heater if used.
y. Install main fuel lines, then fill
Fill the oil pan to the proper
specified engine crankcase lubricant.
and check for oil leaks.
Section XIII. FLYWHEEL AND HOUSING
and check for
level with the
The flywheel is mounted on the rear of the cylinder
block. Its purpose is to insure a smooth flow of
torque at the engine drive output. The rotor of the
main generator is attached with two disk type steel
couplings to the flywheel.
14-69. Removal, Inspection and Repair.
Symptoms and Isolation of Malfunction. A
malfunction associated with the flywheel is usually
indicated by excessive vibration and noise.
(1) Remove engine from unit (para 2-13).
Support engine on blocks or suitable stand.
(2) Remove electric starter. Refer to @-
erator and Organizational Maintenance Manual.
(3) Remove six hexsocket capscrews attach-
ing flywheel to crankshaft flange. See figure 14-33.
(4) Install two long capscrews in opposite
holes of the flywheel face to serve as handles. Pull
on capscrew handles while supporting flywheel weight
and remove flywheel.
If flywheel cannot be removed with a
direct pull on the handles, it maybe
necessary to tap flywheel with a suit-
able brass bar through the electric
starter mounting opening. Turn fly-
wheel and tap exposed part at inter-
vals until flywheel can be remove &
(5) Remove ring gear from flywheel by
grinding a notch through the ring gear at the rod of
one of the teeth. Expand the ring and drive it from
Do not attempt to remove ring gear
without first expanding it.
(6) The wear sleeve is held in position on
the flywheel by a press fit. It is removed with a pry
bar or three-jawed external puller. Wear sleeve
should be removed with an even motion.
(8) Remove eight capscrews securing
flywheel housing to the cylinder block. Tap the
housing with a soft-headed hammer to break it loose
from the housing dowels. Remove the housing.
(1) Thoroughly clean flywheel housing
with cleaning solvent, Federal Specification P-D-
680. Remove preformed packing from housing.
(See fig. 14-33)
(2) Inspect housing for cracks and other
(3) Inspect ring gear for nicks, cracks,
or excessive wear.
(4) Inspect flywheel for nicks, burrs or
dents. All burrs, nicks and dents must be removed
from the flywheel surface that fits against the
14-70. Reassembly and Installation.
Place flywheel housing on a bench with the
preformed packing side up. Drive out the packing
from the housing with an oil seal remover.
b. Clean oil seal bore in the flywheel housing.
c. The outer diameter of the seal comes with
a layer of red-colored sealant which eliminates the
use of a sealing compound on the outer diameter of
the seal prior to pressing it into the flywheel
Position seal squarely with bore in housing
and, using a seal installer, carefully drive seal into
flywheel housing until it is seated against the seal
stop in the bore.
The seal must be installed with open
side of seal directed toward the
Make certain the crankshaft flange on which
the seal rides is free from nicks or burrs. Polish
with crocus cloth if necessary.
Lubricate flange and sealing
engine oil Do not use grease, soap,
lip with clean
white lead, etc.
(7) Remove capscrews securing oil pan to