What are the symptoms of a bad motorcycle bearing?
1 Answers
Here are the symptoms and causes of a bad motorcycle bearing: 1. Symptoms of a bad motorcycle bearing include: (1) Loud abnormal noises; (2) Prone to cylinder scoring; (3) Accelerated wear of parts; (4) A "clanking" sound when giving throttle. 2. Causes of a bad motorcycle bearing: (1) Repeated burning of main bearings and connecting rod bearings weakens the support at the burnt areas. Fractures often occur at the root of the 2nd and 5th cylinder connecting rod journals (taking a six-cylinder engine as an example), main journal concentricity, and improper maintenance. There are many technical reasons for crankshaft damage, as it bears heavy loads in the engine. Fractures typically occur between main journals and connecting rod journals. (2) Excessive clearance between adjacent main bearings, especially between the rear two and front two main bearings. The crank arms are relatively thin, and the crankshaft bears heavy loads at both ends due to the flywheel at the rear and the pulley at the front. The crankshaft also directly and indirectly drives other components, such as the camshaft. Additionally, uneven front and rear loads on the crankshaft, combined with individual cylinders not functioning, create inconsistent forces on the crankshaft, which can otherwise operate for millions of kilometers.
