Textron Lycoming O-235-C User Manual

SECTION 3 LYCOMINGOPERATOR’SMANUAL
OPERATINGINSTRUCTIONS O235ANDO290SERIES
Ifthis happens,apply fullcarburetorairheatandopenthet hrottletolimiting manifoldpressure
andRPM.Thiswillresultinaslightadditionaldropinmanifoldpressure,whichisnormal,and
this drop will be regainedas the ice is melted out ofthe inductionsystem. When ice has been
melted fr omtheinductionsystem,returnt hecarburetor heat control tothefullcoldposition.In
thoseaircraftequippedwithacarburetorairtemperaturegauge,partialheatmaybeusedtokeep
themixturet emperatureabovethefreezingpointofwater(32°F).
WARNING
CAUTION MUST BE EXERCISED WHEN OPERATING WITH PARTIAL HEAT ON
AIRCRAFTTHATDONOTHAVEACARBURETORAIRTEMPERATUREGAUGE. USE
EITHERFULLHEATORNOHEATINAIRCRAFTTHATARENOTEQUIPPEDWITHA
CARUBRETORAIRTEMPERATUREGAUGE.
(5)LandingApproach–In makingalandingapproach,thecarburetorheatisgenerally inthe“Full
Cold”position.However,ificingconditionsaresuspected,apply“FullHeat”.Inthecasethatfull
power needstobeappliedundertheseconditions,asforanabortedlanding,returnthecarburetor
heatto“FullCold”afterfullpowerapplication.
8.ENGINEFLIGHTCHART
FuelandOil –
Model *AviationGradeFuel
O235C, E,H2C .....................................................................................................80/87octaneminimum
O235F,G,J, K, L,M, N, P.. .......... ......................................................... 100/100LLoctaneminimum
O290D, D2 .. ...........................................................................................................80/87octaneminimum
*RefertolatestrevisionofServiceInstructionNo. 1070.
NOTE
Aviation grade 100LL fuels in which the lead content is limited to 2 c.c. per gallon are
approvedforcontinuoususeintheabovelistedengines.
**RecommendedGradeO il
Average
AmbientAir
MILL6082
Grades
MILL22851
AshlessDispersant
Grades
AllTemperatures
Above80°F(26.6°C)
Above60°F(15.5°C)
30°F(1.11°C)to90°F(32.2°C)
0°F(17.8°C)to70°F(21.1°C)
Below10°F(12.2°C)
 
SAE60
SAE50
SAE40
SAE30
SAE20
SAE15W50or 20W50
SAE60
SAE40orSAE50
SAE40
SAE40, 30or20W40
SAE30or20W30
**RefertothelatestrevisionofServiceInstructionNo.1014.
36 RevisedSeptember2008

Textron Lycoming O-235-C Specifications

General

Brand	Textron
Model	Lycoming O-235-C
Category	Engine
Language	English