How to judge the sound of belt and pulley bearings
That's a belt problem If you still don't mind, take a look at the maintenance department.The belt is squeaky and the bearings are not.
Timing belt tension wheel bearing sound characteristics and power steering hydraulic pump bearing, generator bearing sound basic same, is a continuous "rustling" sound, tone changed sharply with engine speed. The position of the belt tension wheel bearing is located in the right time belt of the engine, so the position of the outside ring cannot be determined by the external check. If there is a sound similar to the bearing engine, but with a long handle screwdriver or check the stethoscope to listen to the engine water pumps, generators, power steering hydraulic pump and so on external annex no ring, can be determined primarily for timing belt tension wheel bearing ring. At this time should be open timing belt cover, remove all timing belt and timing belt tension wheel bearings, turn the bearing by hand, and carefully check the bearings have the same ring and binding. Mountain in timing belt tension wheel bearing to bear larger lateral pressure, thus in turn the bearing by hand, as long as can feel slightly different bearing ring or binding, which indicated that the bearing has been damaged, in use can produce sound, should be replaced immediately.
It is the grease of bearing grease, the grease is too big when cold, the lubrication is bad, the bearing will ring.
