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The reason why Bare Engine suddenly break

2025-06-09

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?
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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 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 oil film must be relied on between metals 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.
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