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1.小油门时机油压力正常,大油门时机油压力反而降低 有一台发动机在小油门时机油压力表指示0.1兆帕,而当加大油门使转速达到1400转/分左右时,机油压力反而降到0.1兆帕以下。经检查是机油调压阀弹簧因阀座孔壁间有杂质,而造成运动卡滞引起的故障。当发动机转速升高时油压升高,使限压阀打开,但是调压弹簧因卡滞不能及时回位,致使主油道的油压大幅度下降。为此,应清洗调压阀并适当调整。
1. Small throttle normal oil pressure, the oil pressure instead of a large throttle Instead, there is an engine in the small throttle when the oil pressure gauge indicates 0.1 MPa, and when the throttle is increased to reach 1400 rpm / rev, the oil pressure instead Below 0.1 MPa. After the inspection is the oil pressure regulator valve spring due to impurities between the hole wall, leaving the movement caused by stuck stuck. When the engine speed increases when the hydraulic pressure, the pressure limiting valve opens, but the pressure regulator spring can not be timely due to stuck back to return, resulting in a substantial decline in oil pressure of the main gallery. To this end, the pressure regulator should be cleaned and properly adjusted.