13.4. System of ventilation of a case
The system of ventilation of a case of the engine consists of the hoses of rather big section connecting an engine case to a cover of a head of the block of cylinders, and system of air supply in the engine, the valve of adjustment of pressure and a separator of oil.
System of ventilation of a case of the engine compulsory the closed type. Ventilation provides a suction from a case of crankcase gases and vapors of fuel in the inlet pipeline of the engine, than increase in pressure in a case because of penetration into it of the fulfilled gases and their emission in the atmosphere is excluded.
Service of elements of system of ventilation of a case consists in the basic in check of passability of hoses and, if necessary, their cleaning.