The main causes of seal damage come from faulty seals themselves and improper installation. Even when valves are made of high-strength rubber, they can break, crack or wear out. A poor installation may even be missing a seal. Any of these failures in the seals can cause oil to reach the engine's cylinders.
As valve stem seals begin to fail, carbon buildup can form, which can also affect other engine components such as valve seats and guides - which is why a quick repair is critical.
In some cases, there may still be excellent compression. However, if there is high oil consumption, this can lead to higher operating temperatures, which can cause seals to crack or rupture. Sealing problems can also be caused by improper clearance between the valve and valve guides. When it comes loose in the cylinder head, it moves laterally, which wears the valves.
The best thing you and your staff can do is to refer to the preventive maintenance schedule for each piece of equipment in your fleet and complete regular safety inspections.
Daily or weekly inspections will help you find leaks and problems before they become more serious.
It's also important to invest in a quality valve sealing solution with no defaults. Partnering with a company that guarantees default-free sealing products puts you ahead of the competition and gives you a competitive edge.
Valve cover gasket leakage and repair 