INSTALLATION MANUAL
AIRCRAFT ENGINES
page 13 - 2
Initial issue, May 01/99
Effectivity: 447 UL SCDI, 503 UL DCDI, 582 UL DCDI /mod. 99
d00323
13.2) Oil circuit for engine installation with spark plugs "down":
In this arrangement the oil system for rotary valve drive and water pump drive must
be modified by the aircraft manufacturer as per the following illustration. The oil tank
installation should not be below the oil inlet tube (4).
■ ATTENTION: For inverted installation, the oil tank must be removed from the
bracket and installed in a suitable location above the engine.
Vent system by removing plug (8) when filling the oil tank (6).
(1) crankcase
(2) cylinder
(3) cylinder head
(4) inlet tube
(5) return line
(6) oil tank
(7) spark plug
(8) vent plug
fig. 24
02810
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