BRP-Rotax
INSTALLATION MANUAL
VALIDATION OF INSTALLATION
General The validation procedures described in this chapter do not claim to be complete. The cor-
rect execution and compliance with all given system limitations and interface descriptions
as well as with standards and norms given by authorities must be proven by the aircraft
manufacturer.
CRANKCASE PRESSURE MEASUREMENT
1. Remove magnetic plug or crankshaft locking screw.
2. Attach pressure sensor (pressure gauge with liquid damping). The thread for the magnetic
plug must be M12x1,5 (metric). The thread for the crankshaft lock pin hole must be M8.
3. Start the engine according the Operators Manual (OM) and read the crankcase pressure val-
ue at full throttle.
4. Compare the read out value with the limitations for the crankcase pressure specified in the
section “System Limitations” of this chapter.
If the readings exceed the pressure limits, then the flow resistance in the oil return line from
oil sump to oil line is too high in the current engine installation (contamination, restrictions of
cross-section etc.) This condition is unsafe and must be rectified immediately.
5. Re-install magnetic plug or screw into crankshaft locking pin hole. When reinstalling the
screw always use a new gasket.
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Page 20
December 01 2023
Effectivity: 916 i A / C24
Edition 0/Rev. 1