When bearing noise occurs, the single-cylinder "cylinder-breaking" test has no obvious change; in the "cylinder-breaking" test of two adjacent cylinders, the noise will decrease or disappear. In addition, you can also use a metal rod or a screwdriver with a wooden handle to touch the bearings of the external body of the diesel engine to judge.
Note: If the noise is caused by the excessive clearance between the bearing and the bearing neck, the oil pressure will drop significantly.
Hora de publicación: 25 de septiembre de 2020
