EF7 valve stem seal, ROULANT brand

has the vital task of sealing the valve stem outlet in the cylinder head. Given the presence of the CVVT variable valve timing system in this engine and the high oil pressure in this area, any leakage can lead to oil contamination of the timing belt.
We provide this part in full compliance with OEM reference drawings and dimensional accuracy of one hundredth of a millimeter. The use of first-class materials in the production of this product guarantees its resistance to high cylinder head temperatures and continuous rotational stresses. Installing this seal prevents oil from penetrating the timing chamber and prevents belt rot and heavy damage caused by engine timing being disrupted.

Technical note:
Before installing the seal, the ridge, edge or pleat and groove of the valve stem head must be thoroughly inspected; If the seal is not installed carefully, it will be damaged at the moment of installation and early leakage will occur. Using an installation tool will help with accuracy and ease of installation.

Oil leak detection:
Symptoms:
Oil leakage from around the valve stem and timing cover
Greasing of the timing belt or timing frame
Gradual decrease in engine oil level
Creating a burning oil smell in the engine compartment

Click here to watch the installation guide.