Searey LSA – Pilot’s Operating Handbook Version 5.0, Revision 8
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Oil for engine lubrication is supplied from an oil collector reservoir and is
circulated throughout the engine by an engine driven oil pump. Oil is
sucked by the oil pump from the reservoir to the engine with the oil
returning under pressure to the collector reservoir. An oil filler cap and
dip stick area located on the top of the collector reservoir. After extended
engine shutdown (i.e. longer than 1 day) to ensure an accurate oil dip
reading, the engine should be started and run for approximately 1 minute.
The difference between Max and Min oil on the dip is 1 quart. To drain the
oil from the system, the oil line fittings (pickup and return) may be
disconnected from the collector reservoir. The two reservoir retaining
clamps can be loosened to allow removal of the collector reservoir.
Remove reservoir and change oil. Reinstall reservoir and reconnect
fittings. A new oil filter should also be fitted at each oil change.
Reference should be made to the Engine Operator’s Manual.
7.5.4 IGNITION SYSTEM
Engine ignition is provided by two solid-state breakerless capacitor
discharge units with interference suppression.
7.5.5 STARTER SYSTEM
The 12-volt electric starter motor is a reduction gear type with overrunning
clutch.
ATTENTION: Activate starter for periods no longer than 10 seconds with
a 2-minute cooling interval.
7.5.6 CARBURETORS
The engine is fitted with 2 x Bing constant depression carburetors type
64/32. Mixture control is automatic and is governed by an altitude-
compensating diaphragm.
7.5.7 PRIMING SYSTEM
The carburetor is primed by fuel that is independently supplied to the
carburetors.
7.5.8 FUEL SYSTEM
7.5.8.1 Fuel Tank
The fuel tank is a cross-linked polyethylene plastic molding. It is attached
to the fuselage primarily by a nylon strap with additional location support
provided by aluminum angles. Capacity of the tank is 23 gallons. The
fuel sump and fuel supply are at the forward bottom of the fuel tank.
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