What is the solution for blue smoke caused by a damaged one-way valve in the Passat Lingyu?

[MariaLynn]

Passat Lingyu one-way valve damage blue smoke treatment method is: 1, replace the oil; 2, remove the engine carbon deposits. The one-way valve is installed on the pump outlet line, and its functions are: 1, to prevent oil and air backflow; 2, to prevent safety accidents and equipment damage caused by abnormal processes; 3, to improve the heat transfer effect of the condenser and evaporator; 4, to prevent the reverse flow of compressed air in the pneumatic system. One-way valves are divided into two types: straight-through and right-angle. The straight-through one-way valve is installed on the pipeline with threaded connection, and the right-angle one-way valve has threaded connection, plate connection and flange connection forms.