Common Causes and Symptoms of Piston Ring Failures

Since the 1800s, diesel engines have been beneficial. Initially, it was used in various sectors, including manufacturing and agriculture. The transportation industry has benefited from the advantages of diesel engines because they are designed for heavy-duty tasks. Numerous truck owners have opted for diesel engines due to their excellent fuel economy. Additionally, diesel engines are more durable and long-lasting than gasoline engines.

A diesel engine must be maintained to experience optimal diesel power performance, as it is subjected to significant stress. This is true when towing and long-distance transport are involved. As a result, the engine’s components deteriorate. Because piston rings are one of the most critical components of a diesel engine, truck owners should protect them.

Piston rings perform various functions contributing to the diesel engine’s smooth operation. The compression ring seals the combustion chamber’s interior and ensures that it remains completely airtight. This prevents gas loss, resulting in increased fuel consumption and emissions.

Piston Ring Failure Symptoms

Overheating is one of the most common causes of a failing piston ring. This can cause the cylinder head and rings to warp, rendering the ring incapable of sealing. Furthermore, excessive heat and friction can be caused by a lack of oil. Additionally, a failing piston ring can result in excessive exhaust smoke. Smoke may be black or gray and may indicate an engine oil leak. Excessive engine oil escapes through a leaking piston ring, resulting in incomplete combustion. Reduced performance is another symptom of a failed piston ring. You may notice that the engine is slow to accelerate.

Causes of Piston Failures

It is critical to maintaining proper piston ring conditions as a truck owner. Piston failures are common in incidents due to their susceptibility to intense pressure caused by heavy tasks. One factor contributing to its deterioration is the inaccuracy of its assembly. Parts are designed to bridge gaps and work in conjunction with other components. If improperly assembled, it can cause damage to the engine’s other components.

Wearing of the piston can be a result of contamination. This could result from inadequate filtration or a leak in the air intake system. Inadequate filtration can result in dirt mixing with the fuel and gasoline, causing sludge to spread throughout the combustion chamber. Hence, this reduces the ring’s lifespan.

For additional information, here is an infographic from Pure Diesel Power.

Read More: Diesel Exhaust System: Things to Know Before Buying


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