UAZ PATRIOT Operation Manual page 115

- fill replacement or special cleansing oil to the level indicator
upper mark;
- start the engine and let it run at minimum crankshaft rpm
for at least 10 minutes;
-drain cleansing oil;
- replace oil filter 10 (see Fig. 9.12);
- pour the fresh oil as indicated above.
Remove oil filter, turning it counter-clockwise. Use oil
filter with bypass valve filtering element 2101C-1012005-NK-2
produced by 'Kolan' PSTE
When replacing oil filter, check tightening of the heat exchanger
fastening neck nut and tighten it as required.
When installing the filter onto the engine, make sure the
sealing gasket is in proper condition, lubricate it with oil, and
turn the filter until the gasket touches the plane on the heat
exchanger and then tighten a 3/4 turn. Make sure no oil leak
in the sealed joints exists.
engine crankcase ventilation system
The system maintenance includes periodic check of the joints
tightness and cleaning the system components of gum residue.
In case of increased oil consumption for burn-out loss and
occurrence of black smoke out of the motor vehicle exhaust
pipe, check the crankcase ventilation system for proper condition
(clogging of channels).
The crankcase ventilation system proper condition is checked
using the water piezometer connected to the crankcase via the
oil level indicator tube.
In the crankcase of idle running engine (with crankshaft rpm
minimum to maximum), there shall be negative pressure of 1-14
mbar (10-140 mm WG).
If oil traces appear on the joints between the turbocharger
and the inlet pipe, check the crankcase blow-by gases pressure.
If the crankcase pressure exceeds 15 mbar (150 mm WG),
check tightness of the motor vehicle vacuum system (the system
of vacuum booster and exhaust gas recirculation). In case of
leak, the vacuum pump forms gauge pressure in the crankcase
resulting in increased gases flow rate through the oil separator
and oil entrainment with gases.
Increased pressure of crankcase gases can also be due to
malfunctions of the cylinder-piston group and clogging of the
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