Rotax 912 i Series Installation Manual page 150

Measurement of crankcase pressure
Graphic
Fig. 3
NOTE:
Magnetic plug
The pressure in the crankcase at (full throttle) must not exceed the prevail-
Pressure values
ing ambient pressure by more than 0.45 bar (6.53 psi) at 90 °C (194 °F) oil
temperature.
If crankcase pressure and measuring pressure of the vacuum readings
and all operational data (flight attitude, temperatures, etc.) are within the
specified limits, then it can be assumed that the oil circuit is working cor-
rectly.
Effectivity: 912 i Series
Edition 1/Rev. 0
BRP-Powertrain
INSTALLATION MANUAL
Part
1 Pressure indicator
2 Magnetic plug
3 Crankshaft locking screw
The thread for the magnetic plug (2) must be M12x1.5 (met-
ric) and M8 for the crankshaft locking screw (3) (use always
new gasket).
Non-compliance can result in serious injuries or death!
WARNING WARNUNG
If the readings exceed the pressure limits, then the
flow resistance in the oil return line from oil sump to oil
tank is too high in the current engine installation (con-
tamination, restrictions of cross-section, etc.). This
condition is unsafe and must be rectified immediately.
Function
79-00-00
January 01/2012
Page 6