58
Engine Housing Ventilation System
When servicing the ventilation system, remove valve cap (Fig. 9.4),
main and auxiliary ventilation hoses, and clean all parts. Clean separated
oil drain orifices in the oil baffle, orifices in the valve cap ventilation
hoses, receiver, and throttle body. The oil baffle shall be washed without
dismantling it from the valves cap. Ensure connections tightness during
assembly.
ATTENTION!
The engine may not be operated with the non-tight
breather system and the oil filler opened. This results in increased escape
of oil with crankcase gases, and contamination of the environment. To
prevent the breather system depressurization, you must close the oil filler
cap tight as far as it can go, and install the oil level indicator against stop.
Fig. 9.2. Engine ZMZ-40911 (left side view):
1 — coolant from radiator to water pump supply pipe; 2 — connection hoses; 3 — control
unit coolant temperature sensor; 4 — thermostat housing; 5 — coolant branch pipe
from thermostat to radiator; 6 — critically low oil pressure sensor; 7 — ignition coils;
8 — crankshaft position sensor connection; 9 — oil level indicator; 10 — engine elevation
rear bracket; 11 — exhaust manifold screen; 12 — exhaust manifold ; 13 — flywheel;
14 — clutch; 15 — clutch charger booster; 16 — oil charger; 17 — oil purge plug.
