Figure 3-39. Engine Front Support, Removal and Installation.
i. The cylinder block and crankcase are cast as a
single unit giving ridged support for the crankshaft.
Compressed air used for cleaning and drying
Cooling is obtained by water jacketing the entire length
purposes can create airborne particles that may
of the block. When installed in the generator set, the
enter the eyes. Pressure shall not exceed 30 psig
block is supported by the front engine support with rear
and use only with adequate chip guards and
support supplied through ridged coupling to the
generator assembly housing.
(2) Inspect engine front support for cracks, corro-
3-48. ENGINE FRONT SUPPORT.
sion, and excessive wear. Check inner surfaces for scores,
ridging, and other damage.
(3) Check crankshaft pulley for corrosion, cracks,
and step wear in v-belt groove.
If engine is not removed from the generator set,
(4) Check all threads for crossing, stripping, and
block the front of the engine prior to removing
the front engine support.
(5) Repair minor thread damage with a thread
(1) Remove nut, lockwasher, ring, and pulley (figure
(6) Replace any parts damaged beyond repair.
(2) Remove front engine support from crankshaft
by removing bolt and lockwasher.
c. Installation. Install engine front support in
reverse order of removal procedure. Bolts for the front
b. Cleaning, Inspection, and Repair.
engine support should be torqued to 150 ft-lb dry, 110 ft-
(1) Clean all parts in a dry cleaning solvent (Federal
Specification P-D-680) and dry thoroughly with filtered
3-49. FLYWHEEL AND FLYWHEEL HOUSING.
compressed air. Remove caked grease deposits with a
stiff bristle brush.
Solvent, Dry Cleaning P-D-680, Type II is flam-
mable and moderately toxic to skin, eyes and
flywheel (2) and ring gear (3) as an assembly. Do not
respiratory tract. Eye and skin protection re-
remove ring gear unless it is badly damaged and replace-
quired. Good general ventilation is normally
ment is necessary.