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1.注意检查气门室罩盖与缸盖结合面的定位销。有的柴油机由于使用年久,该处的定位销脱落,在安装气门室罩盖时,因没有定位销,仅靠中间一颗螺钉定位,这样就不能将气门室罩盖安装在准确的位置,由于位置的偏斜,导致减压机构不灵,给维修和使用带来不应有的麻烦,因此这颗小小的定位销也不能忽略检查。 2.机油泵内外转子与油泵壳体端面间隙确保正常。S195柴油机使用的是转子式机油泵,内转子有4个弧形凸齿,外转子有5个弧形凹齿,其外表与油泵为滑动配合。由于结构特点,当油泵转子转动时,便形成高压区和低压区。当机油泵内外转子端面与油泵壳体端面的间隙因磨损超限时,就等于高压区与低压区相通,难以形成高压,此时的机油泵泵油效果固然
1. Pay attention to check the dowel pins of the valve cover and the cylinder cover. Some diesel engines due to the use of a long time, the location of the pin off, the installation of the valve cover, because there is no positioning pin, the middle of a screw positioning, so you can not install the valve cover in an accurate position, Due to the position of the deflection, resulting in decompression mechanism is not working, to the maintenance and use of undue trouble, so this small pin can not ignore the inspection. 2. The inner and outer oil pump pump casing to ensure the normal end clearance. S195 diesel engine uses a rotor-type oil pump, the inner rotor has four curved teeth, the outer rotor has five arcuate teeth, the appearance of the sliding fit with the pump. Due to the structural characteristics, when the oil pump rotor rotates, a high-pressure zone and a low-pressure zone are formed. When the oil pump inside and outside the rotor end face of the pump housing and the gap due to wear overrun when the high pressure zone is equal to the low pressure zone connected to the formation of high pressure is difficult at this time of course,