What is the culprit behind the sudden break of Bare Engine?

Faced with a small Isuzu Engine with a broken connecting rod, we must be full of doubts: What is the reason for the connecting rod break? How to avoid this from happening again?

The damaged Isuzu Engine function "tells" us a lot of information. Just by observing the clues on the Isuzu Engine components, we can find the culprit for the connecting rod break.

The component has a large area of ​​metal transfer scratches, indicating that the temperature of the metal friction surface is abnormally high.

The generation of ultra-high temperature is inseparable from a large amount of heat energy. The heat generated by burning gasoline in Bare Engine will not cause the connecting rod temperature to exceed the standard. So where does the heat energy for metal transfer come from? The answer is just abnormal friction!

As we all know, small four-stroke Bare Engine run very fast (usually 50-70 revolutions per second). The metal must rely on the oil film to reduce the friction coefficient and cool the parts. If the lubrication is not normal, the metal and the metal will rub directly, and a large amount of heat will accumulate on the joint surface, resulting in metal transfer.

Therefore, poor lubrication is the culprit for the break of the big end of the Isuzu Engine. Due to poor lubrication, we can usually find traces of wear in other places of the Isuzu Engine such as the inner wall of the cylinder.

Common causes of poor lubrication include: lack of oil in the Isuzu Engine, use of inferior engine oil, excessive tilt angle of the Isuzu Engine, or failure to replace the old engine oil inside the Isuzu Engine on time.