Lycomin 0-360 - Page 131

TEXTRON
LYCOMING OPERATOR'S
MANUAL
0-360 and
ASSOCIATED MODELS
SECTION
5
NOTE
Before installing cylinder
hold-down nuts, lubricate
crankcase through
stud threads
with any one
of the following
lubricants,
or combination
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 5-2A, and
tighten 1/2 inch hold-down
nuts to 300 inch lbs.
(25 foot
lbs.) torque, using the sequence
shown in figure 5-2A.
(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
manner
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)
As a final check,
hold the
torque wrench
on each nut
for
about five
seconds. If the
nut does not
turn, it may
be presumed
to
be tightened
to correct torque.
CAUTION
After
all cylinder base
nuts have been
tightened, remove
any nicks
in the
cylinder fins by filing or burring.
5-11