What Causes Engine Cylinder Pounding?

[DanteLee]

Engine cylinder pounding can be caused by broken connecting rod bolts or incorrect operation. Below is a detailed explanation of the causes of engine cylinder pounding: Broken Connecting Rod Bolts: When connecting rod bolts break or connecting rods snap, they can damage the cylinder block. A fractured piston pin or piston separation (where the piston head detaches from the skirt) can also damage the cylinder block. Additionally, a valve dropping into the cylinder or a fracture in the upper shoulder of the cylinder liner may lead to cylinder pounding. Incorrect Operation: Improper operation, such as revving the engine aggressively before starting or shutting it down, can cause unstable diesel engine speeds and worsen lubrication conditions. Over time, this may lead to fatigue damage of components, resulting in cylinder pounding.