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译文：
一台R175A柴油机在春耕前的大修保养中更换了缸套、活塞、活塞环、气门及座圈、连杆瓦、供给系三大精密偶件后，仍然存在难启动故障，且勉强启动后运行吃力，加油门时发动机转速无明显提高。经检查发现泵油压力不足，分解喷油泵后，发现是出油阀垫圈有明显划伤，且有一处断裂。原来是机手更换出油阀时用起子撬出油阀垫圈不小心弄断，这样喷油泵内高、低油路串通，从而导致上述故障。更换一只新出油阀垫圈后故障排除。由于出油阀垫圈装后受压，内径缩小，紧箍在阀座上，撬时极易损坏，因此，更换出油阀时一般应同时更换出油阀垫圈。

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原文：
R175A a diesel engine overhaul and maintenance in the spring prior to the replacement of the cylinder, piston, piston rings, valve and seat ring, connecting rod watts, the supply line after the three precision coupling, there are still difficult to start trouble, and reluctantly starts to run after difficult, fueling the door of the engine speed without significantly improved. The examination revealed lack of oil pressure pump, decomposition injection pump, we found that out of the oil valve gasket obvious scratches, and there is a fault. Is a machine to replace the original hand-out of the oil valve, oil valve with screwdriver pry out the careless cutting the gasket, so that fuel pump inside the high-and low asphalt collusion, leading to the failure. Replacement of a new valve gasket out of oil after troubleshooting. As a valve after the pressure washer fitted inside diameter narrowing, tight hoop in the seat on the skid when the easily damaged, therefore, to replace a valve in general should also be replaced when a valve gasket.