TEXTRON LYCOMING OPERATOR'S MANUAL
0-540 & 10-540
SERIES
SECTION 7
INSTALLATION AND STORAGE
1. PREPARATION
OF ENGINE
FOR INSTALLATION. Before
install-
ing
an engine that has been prepared
for storage, remove all dehydrator
plugs, bags of
desiccant and preservative
oil from
the engine.
Preservative
oil can be removed
by removing
the bottom
spark plugs and
turning the
crankshaft three or four revolutions by hand. The preservative oil will then
drain through the spark plug
holes. Draining will be facilitated
if the engine
is tilted from
side to side during the above
operation. Preservative oil which
has accumulated in the sump can be drained by removing the oil sump plug.
Engines that have been
stored in a cold place should
be removed to an
environment
of at least 70°F. (21°C.)
for a period of 24 hours before
preser-
vative oil is drained from the cylinders. If this is not possible, heat the
cylinders with
heat lamps before attempting
to drain the engine.
After the oil sump
has been drained, the plug
should be replaced, safety-
wired, and the sump refilled
with lubricating oil. The crankshaft
should again
be turned several revolutions
to saturate the interior of the
engine with
the clean
oil. When
installing spark
plugs, make sure
that they are
clean;
if not, wash them in clean petroleum
solvent. Of course,
there will be a
small amount
of preservative oil remaining
in the engine, but this can cause
no harm.
However, after twenty-five hours
of operation, the lubricating
oil
should be
drained while the engine is hot.
This will remove any residual
preservative oil that may have been present.
CAUTION
Do
not rotate the crankshaft of an
engine containing preservative
oil before
removing
the spark plugs, because
if the cylinders contain any appreciable
amount of the mixture,
the resulting action, known
as hydraulicing, will cause
damage to the engine.
Also, any contact of the preservative
oil with painted
surfaces should be avoided.
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