AIRCRAFT
SA 160
AIRCRAFTA I R C R A F T
Symphony
(e) Air Induction System
Carburetor induction air enters through an air intake on the right side
of the lower cowling and is carried through a wet air filter, an
alternateairdoorandductstothecarburetorairbox.
Should the air induction filter become blocked or when the
carburetor heat is in the ON position the engine will draw unfiltered
preheated air from the area around the exhaust pipe inside the lower
cowl.
Whenthecarburetorheatswitched ON, the heated air is suckedin
without filtering. Therefore, the carburetor heat should always be
turned off on the ground.
positions used. While starting the engine, the switch is to be rotated
to the spring loaded START position. This will activate the starter
when ALT / BAT switch in the ON position. When released, the
starterengageswitchwillreturn automatically to the BOTH position.
To provide an easier starting in cold weather conditions the aircraft is
equipped with an engine priming system. The system consists off
one primer pump and three priming nozzles on the cylinders No. 1, 2,
and 4. The manually driven primer pump is installed on the middle
console left to the fuel shut-off valve. The fuel priming nozzles inject
thefueldirectinfrontofthecylinderintakevalves.
CAUTION !
(f) The Lubrication System
The engine has a fully pressurized wet sump lubrication system.
Aviation grade oil serves as lubricant with the correct viscosity
recommended by the engine manufacturer depending on the
conditions for use. For engine oil grade and specifications, refer to
Section8“HANDLING AND MAINTENANCE“.
SECTION 7
DESCR. & OPERATION
7-28
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