P92 Classic Jabiru
M a i n t e n a n c e M a n u a l
SYSTEMS
Page E-6
Date
:
Issue 3: 4
th
July 2011
Section E
For safety reasons and to ensure correct airspeed readings, it is important to check the pi-
tot system for leaks adopting the following procedure:
Fasten a piece of rubber hose approximately 30 centimeters long to the pitot tube, close
off the opposite end of the hose and slowly roll it up until the airspeed indicator shows
cruise speed. Constant reading is an indication of no leak in system.
CAUTION
Avoid blowing air through pitot or static ports, as this causes
immediate damage to the airspeed indicator.
4 - EXHAUST MANIFOLDS
With reference to figure E-6, exhaust manifolds (1) are flanged to the engine and join the
muffler (2) separately. The muffler also works as a heat exchanger (3) for carb and cabin
heat (optional).
The exhaust system must always be checked for possible cracks. Close attention must be
given to the heat exchanger system which should be totally disassembled for inspection as
cracks would allow noxious fumes to be mixed with cabin air.
F
IGURE
E-5
E
XHAUST MANIFOLDS
