TM 5-3810-294-34
packing (19) on gear cover and secure with
b. Replace all defective parts.
capscrews (16) and lockwashers (17).
d. Install gasket (14) and cover (13) onto
13-17. Reassembly and Installation
crankcase and secure with Capscrew (7, 8,
Refer to figure 13-3 and reassemble and install gear
9, 10, 11) and lockwashers (12). Install new
cover as follows.
a.
Replace mount (25) on
oil seal (15).
engine support (2Cand secure with bolts (23) and nuts
e. Install timing indicator (6) and secure
(24).
with capscrews (4) and lockwashers (5).f.
b. Install oil filler pipe (22) and oil filler cap(21) on
Install crankshaft pulley (3) and secure with
gear cover -(13).
washer (2) and nut (1).
c. Install water inlet (18), gasket (20) and
Section IV. REPAIR OF FLYWHEEL
13-18. Description
(Federal Specification P-S-661) and dry thoroughly in
The flywheel is attached to the rear of the crankshaft.
compressed air.
The flywheel, by its inertia, compensates for any
13-22. Inspection
fluctuations in engine speed.
a. Check flywheel dowels, mounting holes, and
13-19. Removal
ring gear teeth.
Refer to figure 13-4 and remove flywheel as follows
b. Inspect the flywheel housing-to-crankcase
pilot dowel holes for weal.
c. Check the flywheel pilot bearing for wear.
13-23. Repair and Replacement
a. Refer to TM 5-3810-294-34P for repair parts.
b. Replace all defective parts.
13-4 and assemble and install flywheel as follows.
a. Heat ring gear (7) in a hot oil bath and place it
onto flywheel (2) while the ring gear is hot. The
chamfered edge of the ring gear is placed on the
flywheel first.
Note. Before mounting the flywheel housing, the
mating surface of the crankcase and housing must be
free from burrs, ridges, etc. Such defects will result in
Figure 13-4. Flywheel, exploded view.
excessive face run out.
b. Place housing (5) over the two flywheel
1.
Capscrew (9)
5.
Flywheel housing
housing-to-crankcase pins (6) and tap into place with a
2.
Flywheel
6.
Pin (2)
soft hammer.
3.
Capscrew (6)
7.
Ring gear
c. Install capscrews (3) and lockwashers (4), and
4.
Lockwasher (6)
torque to 70 foot-pounds. Check housing face run out
and compare with values shown in table 1-4. If run out
a. Remove flywheel mounting capscrews (1)and lift
exceeds limits, remove the housing and proceed to
flywheel (2) from the crankshaft flange Remove
step d. below.
capscrews (3), washers (4) and lift flywheel housing (5)
d. Remove pins (6) from crankcase. Install
off the engine. Remove pins(6).
housing but do not tighten bolts to full torque. Position
b. If necessary, ring gear (6) may be removed by
the housing within limits given in table 1-4. Tighten all
heating it with a torch and tapping it with a hammer.
bolts to full torque. Recheck run out and ream the
dowel holes for oversize dowels.
13-20. Disassembly
e. After housing is installed, lubricate the
No further disassembly is required.
flywheel pilot bearing and install the flywheel and ring
gear assembly in position on the dowel end of
13-21. Cleaning
crankshaft flange.
Clean all metal parts in dry cleaning solvent
f. Install capscrews (1), and torque to 95 foot-
pounds.
13-6
TM 5-3810-294-34
