TM 5-4310-276-14
governor housing. Remove the bonding strap. When
assembly cover nut and the governor housing screw
installing the bonding strap, make sure the contact
are tight.
Section VIII.
MAINTENANCE OF ENGINE ASSEMBLY
area. The noise level exceeds the al-
4-16. Description
lowable limits for unprotected per-
The military standard engines described in this
sonnel. Wear ear muffs or earplugs
manual are 4-stroke cycle, overhead valve and air-
which were fitted by a trained
cooled type. These engines have design features for
professional.
radio frequency interference suppression; complete
with fungus proofing. This Military Standard En-
gine develops 1-1/2 HP at 3,600 revolutions per
4-17. Test
minute (rpm). Other features designed into the en-
Start the engine and operate at full load, if possi-
gines are overhead valves with rotators which in-
ble, for one hour minimum. Any discrepancies dis-
crease valve life. The valve seat inserts are made of
covered during this period will be noted and re-
high wear resistant materials, and the combustion
ferred to Direct Support Maintenance.
chambers have a semi-hemispherical design. These
engines are also designed with a splash lubrication
4-18. Removal and Installation
system, wet and dry air cleaners, heavy duty ta-
a. Removal
pered main bearings, standard size 18 millimeter
(1) Remove the nuts attaching the belt guard
spark plugs, centrifugal type mechanical governors,
to the truck frame (fig. 4-16).
diaphragm fuel pumps, and capabilities of efficient
(2) Remove the capscrews attaching the belt
starting and operation at temperatures to minus
guard to the compressor. Remove the guard.
25F (-31.7C).
(3) Loosen the engine mounting bolts and
slide engine sufficiently to remove belts.
(4) Remove the nut (1, fig. 4-17), fuel line (2),
elbow (3) and fuel filter (4).
Operation of this equipment presents
a noise hazard to personnel in the
