With the auxiliary fuel pump turned on, adequate priming is effected by one or
two forward strokes of the throttle.
Warning…. When the fuel tank is approximately ¼ full or less, continuous
uncoordinated flight such as side slips or skids can uncover the tank outlet,
causing fuel starvation and engine failure, avoid prolonged uncoordinated
flight.
Pilot’s Operating Handbook VH-SJH Chapter 3
AIRCRAFT SYSTEMS
Fuel cock
A fuel lever is positioned on the instrument panel in front of the left hand seat
and is clearly marked ON, OFF and RESERVE.
4 Oil System
A wet sump system is common to all the Continental ‘C’ series engines. Oil is
carried in an ovaloid shaped sump or tank mounted on the underside of the
engine, total capacity 5.6 Litres
Oil level is checked by a dip stick embodied in the filler cap on the starboard
side, accessible by removing the top engine cowl. Air scooped in from the front
cowling cools the oil as it passes around the sump. Oil returns to the sump under
gravity.
Oil temperature and oil pressure gauges are mounted towards the right side of the
instrument panel.
5 Engine Controls
Throttle Control
One push-pull type throttle operating in the conventional manner is mounted
centrally on the instrument panel.
Mixture Control
A push-pull type control is fitted to the right of the throttle.
The mixture control knob is clearly marked and coloured red. With the knob
fully in mixture is fully rich. When pulled out the mixture is leaned sufficiently
to stop the engine.
Carburettor Air Temperature Control
A push-pull type control is fitted to the left of the throttle.
Carburettor air temperature is controlled by a lever operated plate valve in the
intake housing which opens and closes a hot air inlet to the manifold. With the
plate valve in the open position cold ram air is drawn through the forward facing
Pilot’s Operating Handbook VH-SJH Chapter 3
AIRCRAFT SYSTEMS
filter intake. With the valve closed, hot air is drawn into the intake from a shroud
fitted around the starboard exhaust pipe.
The carburettor heat control is located to the left of the throttle. To select COLD
air the knob is pushed fully in. To select full HOT air it is pulled fully out. The
degree of heat applied is varied by adjusting the mixture control between the full
HOTand full COLD positions.
Hot air entering the intake does not pass through the air filter, use of carburettor
heat should therefore be avoided when taxiing under dusty or dirty conditions.
NOTE Further instructions on carburettor heat are given in Chapter 5:12.
Engine Starting Controls
A “T” shaped handle at the extreme left hand corner of the instrument panel
engages the engine starter when pulled fully out. It is spring loaded to return to
the disengaged position. The engine may also be started by hand swinging the
propeller.
Warning…… Hand swinging should only be attempted by persons
appropriately trained
An ignition switch is located on the instrument panel on the left hand side and
controls the duel magneto ignition system. Four switch positions are
incorporated, designated clockwise as follows:-
“OFF”, “R”, “L”,and “BOTH”. The engine should always be operated on
“BOTH”, the “L” and “R” positions being for check purposes only.
