Weichai Engine Crankshaft Failure in Several Manifestations

The crankshaft is one of the core parts of the engine, playing the role of carrying and converting work. It is a high-strength, high-precision parts, its material is usually steel. Generally speaking, the crankshaft material has high hardness, high strength, high wear resistance and good toughness to ensure its reliability and life in the high-speed, high temperature, high pressure and high load operation. Crankshafts generally do not fail, but under long-term working conditions, crankshafts sometimes suffer from fatigue fracture and bending deformation and other phenomena, which require remanufacturing or repairing the crankshaft. This article will introduce you to Weichai engine crankshaft failure and several kinds of performance and solutions, hope to help you.

1. Weichai engine crankshaft malfunction of several kinds of performance

(1) abnormal ringing. One of the most obvious symptoms of crankshaft failure is an abnormal metallic knocking sound inside the engine. This kind of noise usually occurs when the engine is running, especially during acceleration or deceleration.

(2) Engine shaking. A faulty crankshaft can cause the engine to run unevenly, and owners may feel the vehicle shaking at idle or during driving.

(3) Reduced oil pressure. Damage to the crankshaft will affect the engine lubrication system, resulting in lower oil pressure, which will lead to a series of mechanical failures.

(4) Abnormal exhaust color. If the crankshaft is damaged, it may lead to incomplete combustion, and the color of exhaust gas discharged from the exhaust pipe will become abnormal, such as the appearance of black or blue smoke.

(5) Lack of power. A damaged crankshaft will affect the power output of the engine, making the vehicle feel weak when accelerating and driving at a reduced speed.

2. Avoiding Weichai engine crankshaft failure when the treatment method

(1) Lubrication system maintenance. Regularly change the oil and oil filter to ensure that the lubrication system works properly. Use high quality oil to avoid crankshaft failure caused by poor lubrication.

(2) Correct installation. When replacing or repairing the crankshaft, make sure that the bolts are correctly installed and torqued, and use parts that meet specifications to avoid failures caused by improper installation.

(3) Timely replacement. If the crankshaft is found to have serious wear, cracks or other irreparable damage, it should be replaced with a new one in time to avoid more serious mechanical failures.

(4) Regular inspection. Conduct regular engine maintenance and inspection to find and repair potential problems in time to avoid crankshaft failure. This includes checking oil pressure, engine noise and vibration, etc.

(5) Reasonable use. Avoid using the vehicle for a long time with high load or overload, and operate reasonably according to the vehicle's instructions to reduce the fatigue damage of the crankshaft.

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