Textron Lycoming IO-540 Series User Manual

TEXTRON
LYCOMING
OPERATOR'S
MANUAL
0-540
&
10-540
SERIES
SECTION
5
(4) Space
piston
ring
gaps.
Then,
using
a piston
ring compressor,
assemble
the
cylinder
over
the
piston
so that
the intake
port
is at
the
bottom
of
the engine.
Push
the cylinder
all the
way
on,
catching
the ring
compressor
as
it is
pushed
off.
NOTE
Before
installing
cylinder
hold-down
nuts,
lubricate
crankcase
through
stud
threads
with any
one
of the
following
lubricants,
or combinations
of
lubricants.
1.
90%
SAE
50W
engine
oil and
10%
STP.
2.
Parker Thread
Lube.
3.
60%
SAE 30
engine
oil
and
40% Parker
Thread
Lube.
(5) Assemble
hold-down
plates
(where
applicable)
and cylinder
base
hold-down
nuts
and
tighten
as
directed
in the
following
steps.
NOTE
At
any time
a
cylinder
is
replaced,
it is
necessary
to retorque
the thru-studs
on the
cylinder
on
the opposite
side
of the
engine.
(a) (Engines
using
hold-down
plates)
- Install
shims
between
cylinder
base hold-down
plates
and
cylinder
barrel,
as
directed
in figure
5-4,
and
tighten
1/2 inch
hold-down
nuts to
300 inch
lbs.
(25
foot
lbs.)
torque,
using
the sequence
shown
in figure
5-4.
(b) Remove
shims,
and
using
the
same
sequence,
tighten
the 1/2
inch cylinder
base
nuts,
to 600
in. lbs.
(50
foot lbs.)
torque.
NOTE
Cylinder
assemblies
not
using
hold-down
plate are
tightened
in the same
man-
ner
as above
omitting
the shims.
(c) Tighten
the
3/8 inch
hold-down
nuts
to 300 inch
lbs. (25
foot
lbs.)
torque.
Sequence
of
tightening
is
optional.
(d) After
completing
tightening
sequence,
recheck
final
torque
value.
5-15

Textron Lycoming IO-540 Series Specifications

General

Brand	Textron
Model	Lycoming IO-540 Series
Category	Engine
Language	English