TM 9-2815-202-34
b. Engine Preservation
NOTE
All openings such as exhaust manifolds, air intakes, breathers etc. should not be
sealed. The engine does not require any special depreservation procedures to be
made serviceable.
(1) Preservation of the fuel system.
(a)
(b)
(c)
(d)
(e)
Equip an auxiliary fuel container with a fuel line and fill container with a sufficient
amount of presentation oil.
Locate the auxiliary fuel container so as to provide
supply of preservation oil to the fuel system.
adequate pressure to assure proper
Disconnect the fuel line at the fuel pump inlet connection of the engine and connect the
line from the auxiliary fuel container to this point.
Disconnect the engine fuel return at the quick disconnect coupling and connect a
transparent plastic line at this point and insert opposite end into a recovery container to
collect return fuel.
Turn fuel valve of the auxiliary container to the ON position. Start and run engine no
faster than 1200 revolutions per minute (RPM) until undiluted preservation oil is flowing
from the fuel return line.
3-11
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