TM 5-4310-360-14
Section VIII. MAINTENANCE OF ENGINE
ASSEMBLY
(4)
4-17. Description
Remove cap screws (5), lockwashers
(6) and engine mounting brackets (7).
The military standard engines described in this
manual are 4-stroke cycle, overhead valve and
(5)
Pack the starting rope and the fuel
aircooled type. These engines have design features
filter in a waterproof protective bag
for radio frequency interference suppression;
and attach to the engine.
complete with fungus proofing. This Military
Standard Engine develops 1-1/2 HP at 3,600
revolutions per minute (rpm). Other featues
Inspection and Servicing.
b.
designed into the engines are overhead valves with
rotators which increase valve life. The valve seat
Refer to TM 5-2805-256 14/24P for inspec-
inserts are made of high wear resistance materials,
tion arid servicing procedures for the engine
and the combustion chambers have a semi-
assembly.
hemispherical design. These engines are also
designed with a splash lubrication system, wet and
Installation.
c.
dry air cleaners, heavy duty tapered main bearings,
standard size 18 millimeter spark plugs, centrifugal
(1)
Detach the bag containing the starter
type mechanical governors, diaphragm fuel pumps,
rope and the fuel filter from the
and capabilities of efficient starting and operation
replacement engine.
at temperatures to minus 25F (-31.7C).
Attach mounting brackets (7, figure
(2)
WARNING: Operation of this equipment presents
a noise hazard to personnel in the area. The noise
lockwashers (6).
level exceeds the allowable limits for unprotected
personnel. Wear ear muffs or ear plugs which were
(3)
Place engine (8) in position on hand
fitted by a trained professional.
truck and attach with bolts (1), lock
washers (4), flatwashers (3) and nuts
4-18. Test.
(2).
Start the engine and operate at full load, if pos-
(4)
Attach the fuel hose assembly (10,
sible, for one hour minimurn. Any discrepancies
discovered during this period will be noted and
when mounting to ensure that threads
referred to Direct Support Maintenance.
are not crossed and that the fittings
are tight and do not leak. Use the
4-19. Removal, Inspection and Servicing, and
recommended pipe seal or compound
Installation.
to seal the threads and fittings.
a.
Removal.
(5)
Loosen the four engine mounting bolts
(1, figure 4-5) and install the V-belts.
(1)
Remove the belt guard, belts and
Adjust belt tension to obtain belt
pulley per paragraph 4-2.
deflection of 3/4 to 1 inch midway
between pulleys. Tighten engine
(2)
Remove the fuel hose assembly (10,
mounting bolts.
figure 4-11).
(6)
Install belt guiard per paragraph 4-11.
(3)
Remove nuts (2, figure 4-5), flat-
washers (3), lockwashers (4) and
(7)
Service the engine crankcase. (See
bolts (1). Lift engine (8) from the
hand truck.
4-18
