UAZ HUNTER 315195, Руководство по эксплуатации

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manufacturer is to be poured, make sure you have flushed
the lubrication system with washing oil. The washing oil shall
be selected in accordance with the recommendations of the
manufacturer of the new oil to be poured into the engine.
It is recommended to flush the engine lubrication system
every two oil changes. To do this, drain the used oil, pour in
the special detergent oil 3-5 mm above the mark "O" at the oil
level indicator and let the engine run for 10 minutes. Then, drain
the detergent oil, replace the oil filter and pour in the fresh oil.
If no detergent oil is available, clean engine oil can be used for
flushing.
engine crankcase ventilation system
During the maintenance of the engine crankcase ventilation
system, remove valve cap 4 (Fig. 9.4), ventilation hoses and
tubes, vacuum valve cap 3, the valve membrane and spring, and
clean the removed parts. Clean the holes of valve cap ventilation
necks, holes 7 of separated oil drain, calibration orifice 8 in the
vacuum valve case, and venting holes in the vacuum valve cap.
The oil baffle 5 shall be flushed while remaining mounted on
the valve cap. Check the membrane for damage and breakage.
When re-assembling, ensure hermetic-tightness of connections.
Fig. 9.4. The engine crankcase ventilation pattern:
1 — receiver; 2 — venting tube connects the vacuum valve with the receiver;
3 — vacuum valve; 4 — valve cap; 5 — oil baffle; 6 — crankcase stream of
gases; 7 — holes for drain of oil separated from crankcase gases; 8 — hole in
the vacuum valve; 9 — tube of air removal from the inlet system to the engine
with back-pressure valve