d05398.fm
INSTALLATION MANUAL
BRP-Powertrain
Effectivity: 912 i Series
Edition 1/Rev. 1
79-00-00
Page 5
July 01/2012
Low temperatu-
res
NOTE: When operating at low temperatures, installation of an oil
thermostat, parallel to the oil cooler is highly recommend-
ed.
Advantages: safe oil pressure after cold start, prevention
of fuel and water accumulation in the oil.
See SL-912-011 “Use of an oil thermostat“, latest issue.
1.3) Checking the oil circuit
General note See Fig. 3.
NOTE: The required pressure gauges and connection parts are
not included in the BRP-Powertrain delivery.
To check the oil circuit for correct function, the following readings have to
be taken with the engine running.
Measurement of
crankcase pres-
sure
See Fig. 3.
Measurement of the mean crankcase pressure at full throttle, this
ensures correct oil return from crankcase (blow-by gas).
A pressure sensor (1) (pressure gauge with liquid damping) can be fitted
instead of the magnetic plug (2) or the crankshaft locking screw (3). The
magnetic plug (2) or the crankshaft locking screw (3) is removed and the
pressure sensor (1) is fitted.
Non-compliance can result in serious injuries or
death!
If an oil thermostat is being used and the ambient
temperature is low, there is a possibility that the oil
may congeal briefly when in a steep descent. Pay ex-
tra attention to the oil pressure and oil temperature
during these abnormal conditions. If necessary, re-
vert to a cruising or climb situation.
Do not remove the magnetic plug for prolonged peri-
ods nor during flight operations.
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