Lubrication System - Rotax 914 F Maintenance Manual

9.3)

Lubrication system

See Pic. 18.
The ROTAX 914 F engine is provided with a dry sump forced lubrication system with
a main oil pump with integrated pressure regulator and an additional suction pump.
NOTE:
The main oil pump sucks the motor oil from the oil tank Q via the oil cooler W and
forces it through the oil filter to the points of lubrication (lubricates also the plain
bearings of the turbo charger and the propeller governor).
The surplus oil emerging from the points of lubrication accumulates on the bottom of
crankcase and is forced back to the oil tank by the blow-by gases.
The turbo charger is lubricated via a separate oil line E from the main oil pump.
The oil emerging from the lower placed turbo charger collects in the oil sump and is
pumped back by a separate pump to the oil tank via the oil line R.
NOTE:
Any hose or pipeline connected there must be of a minimum internal dia. of 6 mm
(1/4") and always with free passage as otherwise a too high pressure in the crankcase
could result in troubles of engine operation.
NOTE:
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Page Date
42 2002 01 01
The oil pumps are driven by the camshaft.
The oil circuit is vented via bore T in the oil tank, where the blow-by
gases leave the system.
The oil temperature sensor Y is located on oil pump flange and
measures the oil feed temperature.
4
Main
914 F
3
05017
Reference
6
Pic. 18
Modification no.
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