Gaskets / Sealing Rings auto parts: Valve gasket
How to detect the valve cover gasket failure
To assess the condition of the component, it must be visually inspected. For this you need to dismantle the valve cover. Cracks, warping and breaks, as well as a decrease in the rubber elasticity indicate the necessity to replace the gasket.
You may identify that the valve cover gasket needs diagnosis by the following signs:
Causes of the valve cover gasket failure
The most common part failure is the loss of flexibility: a hardened gasket cannot securely seal the connection between the cylinder head and the valve cover, and it can crack over time. The change in the initial properties of the part manufacturing material is typically caused by high temperature impact. Frequent engine overheating shortens its service life.
Often, the valve cover gasket malfunction results from the part installation errors. In particular, usage of a poor-quality or unsuitable sealant may lead to the material disruption, and excessive torque when tightening the bolts can result in the component warping.
The valve cover gasket must be capable of sustaining the impact of aggressive components of the engine oil, and of resisting sharp temperature changes. Parts produced from low-quality materials and with violation of manufacturing technologies not only cannot fulfil their functions effectively, but also disrupt prematurely.
Replacement of the valve cover gasket
Sealing elements are consumables, that is why their repair is not performed. The valve cover gasket replacement, unlike the cylinder head gasket, is advised to be performed when it is worn out. A new part mounting is easy to do by yourself. For this, you have to perform the following steps: