The main characteristic of engine connecting rod bearing ring

The main characteristic of engine connecting rod bearing ring: ( 1) There is continuous in sudden acceleration obvious tapping, sound material 'clicking' voices. ( 2) You can hear the sound when idle, but is most obvious when medium speed, high speed but not obvious. ( 3) Sound engine temperature change, no change. ( 4) Will produce noise of cylinder is broken after the fire, noise significantly diminished or disappeared. The main reason of connecting rod bearing noise: ( 1) Connecting rod journal and connecting rod bearing the large clearance b etween coordination is the main cause of the connecting rod bearing noise. ( 2) Bad lubrication cause burning of the connecting rod bearing and connecting rod bearing ring. The cause of the poor lubrication is generally lack of lubricating oil, the oil way blocked, or lubricating oil deterioration, etc. ( 3) Connecting rod bearing clearance is too small or bearing quality loss caused by the bad alloy bearing burning loss and noise generation. The diagnosis of connecting rod bearing ring method: ( 1) Appear this kind of noise, can make the engine idle speed running. Chase and cylinder do fire test. And then by the idle speed to medium speed jitter accelerator, when shaking the accelerator can clearly hear 'clicking noise, fire test are substantially on cylinder phenomenon, at the moment after fire can restore noise sensitive, can be concluded that the most the cylinder connecting rod bearing ring. ( 2) Vehicles on the road, if can hear small when you step on the gas' clicking sound, decreases in the gas or lighten the load, the noise can reduce or disappear, this is typically the early signs of connecting rod SKF bearing ring. Such as' suddenly heard the engine in the vehicle is the noise about your feet, as if in the absence of lubricant conditions, with big drill on the material of solid steel's sounds of drilling, this is typically the lack of oil burning bearing noise. Appear this kind of noise. Bearing has burned embrace the possibility of journal, should immediately stop, the engine stalled, with the hand crank rocking-turn crankshaft several times, in case of crankshaft pinioned. Check the connecting rod bearing noise, the number of jitter throttle don't too much, the engine operation time shoulds not be too long, lest cause dao cylinder accident.