在汽车发动机修理工作中,对活塞间隙的决定必须慎重。为保持良好的压缩,间隙拟越小越好。但间隙过小,气缸壁上得不到必要的润滑,易“拉缸”;另外,当温度升高时,活塞就会因膨胀而被气缸“咬死”。间隙过大,一是压缩不良、妨碍起动;二是冷车时易发生敲击声;三是缩短了使用寿命。根据使用经验,活塞间隙偏大0.01毫米,则等于使这辆车少行驶一万公里而提早大修。 In the car engine repair work, the decision of the piston clearance must be careful. In order to maintain good compression, the gap to be as small as possible. But the gap is too small, the cylinder wall is not necessary lubrication, easy “pull cylinder”; In addition, when the temperature rises, the piston will be due to expansion of the cylinder “killed.” The gap is too large, first, poor compression, impede the start; second is prone to percussion when the cold; third is to shorten the service life. According to the experience of use, the larger piston clearance of 0.01 mm, is equal to making this car less traveling 10,000 km and early overhaul.