At long operation of the engine noise in the gas-distributing mechanism can be idling audible. This noise should disappear after the engine will get warm to normal working temperature.
PERFORMANCE ORDER
1. Check, whether there is no noise in the gas-distributing mechanism. In the presence of noise check.
– quality and oil level in the engine; – pressure of oil in the engine.
2. If noise did not stop, in the course of dismantling check, whether each hydraulic jack is compressed by pressing it.
3. If the hydraulic jack is compressed, replace it.