Lycomin 0-360 - Page 53

TEXTRON
LYCOMING
OPERATOR'S
MANUAL
0-360 and ASSOCIATED MODELS SECTION 3
(2) Maximum
Power Cruise - The engine
must always be operated
on
the rich side
of peak EGT or TIT. Before
leaning to obtain
maximum
power mixture
it is necessary
to establish
a reference
point.
This is accomplished
as follows:
(a) Establish
a peak
EGT or TIT
for best economy
operation
at
the highest economy
cruise
power without
exceeding
1650°F.
(b) Deduct 125 F. from
this temperature and thus
establish the
temperature
reference
point
for use
when operating
at
maximum
power mixture.
(c) Return mixture
control to full rich
and adjust the RPM and
manifold
pressure for desired
performance cruise operation.
(d) Lean
out mixture
until EGT or
TIT is the value
established
in
Step
b. This sets the
mixture at best power.
2. LEANING
TO FLOWMETER.
Lean to applicable
fuel-flow
tables or
lean to indicator
marked for
correct fuel flow
for each power
setting.
3. LEAINING
WITH
MANUAL MIXTURE
CONTROL..
(Economy
cruise,
75% power
or less) without flowmeter
or EGT gage.)
a.
Carbureted
Engines.
(1) Slowly
move mixture
control
from "Full Rich"
position
toward
lean position.
(2) Continue
leaning
until engine
roughness
is noted.
(3)
Enrich until
engine runs
smoothly and
power is
regained.
b. Fuel Injected
Engines.
(1) Slowly
move mixture
control from
"Full Rich"
position toward
lean position.
(2) Continue
leaning until
slight loss
of power is
noted (loss of
power may
or may
not be accompanied
by
roughness).
(3)
Enrich until
engine runs smoothly
and
power is regained
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