It is responsible for sealing the valve stem exit from the cylinder head.
This part prevents engine oil leakage and contamination of the timing assembly.
Made of heat and oil resistant material, suitable for the working conditions of the L90 engine
Its correct operation plays an important role in the health of the engine and prevents oil leakage into the timing belt housing and extends the life of the engine timing system

Technical note:
Before installing the seal, the valve stem groove and groove must be thoroughly inspected; if the seal is not installed accurately, the seal will be damaged at the moment of installation and early leakage will occur. Using an installation tool helps to ensure accuracy and ease of installation

Identifying the location of an oil leak:
Signs:
Oil leakage from around the valve stem or timing belt frame
Grease on the timing belt and timing chamber
Gradual decrease in engine oil level
Burning oil smell in the engine compartment

Click here to watch the installation guide.