Iveco Marine Diesel Engines, Installation Handbook

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MARCH 2004 LUBRICATION
7.79
MARINE ENGINES INSTALLATION
When setting up the engine, it is essential to take into account that there must be enough room in the
engine compartment to have access to the pump and replace the lubricant.
NOTE
During the oil change procedure, take the necessary proper counter measures to avoid spilling oil in the bilge.
A., B. Manual pump activation to drain the oil.
7.6 ENGINE VENT
Inside the engine, part of the combustion gas leaks out of the cylinders and flows into the lubrication
circuits due to the high pressure; at the same time, the oil produces vapour due to the high tempera-
ture. This gas mixture, generally called blow-by, is exhausted out of the engine because of the engine
overpressure.
In the IVECO marine engines, the blow-by gases are concentrated in calibrated channels before they
reach the air filter, to be suctioned again and taken into combustion. Every model has a device that reg-
ulates the flow of re-suctioned blow-by, separates the liquid components through appropriate filters and
leads them to the oil sump.
Filters must be periodically changed; thus, easy access to this device should be guaranteed.
Figure 2
A
B