Explanation of engine crankshaft   

Tile is a building style with ceramic flakes on the roof. Ancient roofs are covered with tiles to shield the wind and rain. In the field of construction machinery, there is also a tile engine crankshaft, which is designed to reduce friction resistance and crankshaft connecting rod neck wear.

During the high-speed rotation of the engine crankshaft, there is a layer of oil film to isolate the crankshaft from the axle bush, which can guarantee the long run of the crankshaft without damage.

If the engine crankshaft sends out the abnormal sound, it shows that some links are in problem.

The cause of the crankshaft bearing noise: crankshaft journal and bearing clearance is too large, the W alloy layer erosion or spalling, fixed bolt shaft tile loose, oil road congestion, lack of shaft and the tiles to supply lubricating oil or thin and friction wear overheating, beyond the limits.

How to tell whether the crankshaft is ringing.

The oil filler cap open, used to listen to the sound of relatively clear, this can determine the crankshaft bearing noise serious fault; in the car can be heard. The stethoscope is used to contact the crankshaft bearing housing holes near the crankcase in order to change the engine speed. When suddenly increasing the throttle or suddenly decreasing speed, if a heavy noise can be heard, it can be diagnosed as a crankshaft tile.

In general, the axle bush is ringing, and it is not up, but the noise can be lightened by the short circuit. Usually, it can be judged according to the position of the sound by the experience.

The ablative or shedding of the crankshaft tile not only aggravates the sound of the engine, but also the vibration of the body is larger. The worn radial clearance of the crankshaft or axle neck is too large, while the noise appears, the oil pressure is reduced and the indicator reading is insufficient.

Determination of crank bearing rings, remove the oil pan, the crankshaft will remove suspicious tiles, check the curved bearing alloy case. If the ablative exfoliation should be replaced. If the bearing alloy is good, a thin copper skin with proper thickness is used to check the gap between the axle bush and the neck. If the clearance exceeds the limit of use, new parts should be replaced.

Explanation of engine crankshaft

Explanation of engine crankshaft

Explanation of engine crankshaft

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