新修好的柴油机在试车时排气管排机油,主要原因: 一是油底壳机油油面过高,飞溅到汽缸壁上的机油太多,机油进入燃烧室。 二是活塞、活塞环的漏光度过大,也能引起严重排机油。 三是活塞环装配时,开口分布不符合要求,造成大量机油窜入燃烧室。 四是柴油机经过镗缸或更换汽缸套、活塞、活塞环等零件后,没按规定进行磨合,引起零件工作表面擦伤,导致漏气 The newly repaired diesel exhaust pipe in the test run when the oil, the main reasons: First, oil pan oil surface too high, splashed on the cylinder wall too much oil, oil into the combustion chamber. Second, the piston, piston ring leakage is too large, but also can cause serious row of oil. Third, the piston ring assembly, the opening distribution does not meet the requirements, resulting in a large number of oil fleeing into the combustion chamber. Fourth, after the cylinder engine cylinder or cylinder replacement, piston, piston ring and other parts, not according to the provisions of the run-in, causing part of the work surface abrasion, leading to leakage