What can Cause Inlet Valve Recession in Diesel Engines?

If you see that the valve seat is sinking from its place, and the valve clearance is getting weaker and the hot gas is passing from it causing sank of valve seat from its level, this means you have been a victim of valve recession. This recession needs to be counter quickly for the health of your valve lash, otherwise, a valve lash replacement can lead you to spend a lot of costs.

Moreover, the valve recession causes and time periods vary from one valve type to another, here we are discussing valve recession causes of the inlet valve recession:

Seating Speed of the Valve:

You know that a valve opens and closes for at least 2500 times per second when the engine is working in the normal conditions. This opening and closing of the valve speed cannot only damage valve seating but can cause so much pressure on it hence such fast seating speed is one of the major cause of inlet valve recession.

Valve Adjustment:

If you do not pay attention to the valve adjustment and do not perform valve clearance on the specific intervals of the time, suggested by the engine valve grinding machine manufacture company, then this uncleaned and toxic valve can cause inlet valve recession.

Valve Seating Area:

The valve seat can be damaged due to the speed of the engine because as it is said earlier, that the valve seat contracts and expands to up to 2500 times when it comes to normal engine working. Hence, if the valve seating area is damaged, has left its place, or has sunk from the surface, this means you need to address this problem or else it can inlet valve recession.

Valve Diameter and Mass:

If the mass and diameter of the valve are not in accordance with the quality of the engine, it can cause the inlet valve recession. Along with this the material of the inlet valve also matters a lot when it comes to the life of Inlet Valve. Because a good quality valve will be damaged late than the poor quality valves.

These are some reasons and causes which can result in the inlet valve recession. You need to check and keep an eye on the engine performance in order to stop the inlet valve recession. If you get engines from a good engine valve quenching machine manufacture company, then valve recession period can be diminished.