The oil sump is of dry sump type. There are two oil outlets at each end of the engine. One
outlet at each end must be connected to the system oil tank on 6L and 12V engines. On other
engines one outlet at the free end and both outlets at the driving end should be connected to
the system oil tank.
The engine driven lubricating oil pump is of screw type and it is equipped with a pressure
control valve. A stand-by pump connection is available as option. Concerning suction height,
flow rate and pressure of the engine driven pump, see Technical Data. If the system oil tank
is located very low, it can be necessary to install an electrically driven pump instead of the
engine driven pump.
The built-on lubricating oil module consists of an oil cooler with temperature control valves
and an automatic filter. The backflushing oil from the automatic filter has a separate connection.
Engines can be delivered without built-on lubricating oil module on request.
The built-on centrifugal filter serves as an indication filter.
All engines are delivered with a running-in filter before each main bearing, before the
turbocharger and before the intermediate gears. These filters are to be removed after max.
50 running hours.
7-4 Wärtsilä 46F Product Guide - a19 - 1 December 2017
Wärtsilä 46F Product Guide7. Lubricating Oil System
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