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1烧瓦发动机转速突然自行降低,负荷沉重,冒黑烟,机油压力下降,曲轴箱内发出“唧唧”干摩擦声,这是烧瓦的征兆。应立即停机检查曲轴和轴瓦,否则,有可能在数秒钟后,轴瓦与轴颈就会粘结抱死。2粘缸发动机运转无力,水温表指示超过100℃,如果给机体上洒几滴水时,有“嘶嘶”响声并冒水汽,水滴很快蒸发,这是粘缸的征兆。应采取怠速运转或停车摇转曲轴帮助冷却。千万不要立即停机熄火,否则,会使活塞与缸套粘接。3气门落缸
A burning tile engine speed suddenly reduce their own, heavy load, black smoke, oil pressure drops, the crankcase issued “chirp ” dry friction sound, which is a sign of burning tile. Immediately shut down the crankshaft and bearing should be checked, otherwise, it may be a few seconds after the bearing bush will be bonded and locked. 2 sticky cylinder engine running weakness, the water temperature gauge indicates more than 100 ℃, if the body to sprinkle a few drops of water, there are “hissing” sound and water vapor, water droplets quickly evaporate, which is a sign of sticky cylinder. Should take idle or parking crankshaft to help cool. Do not immediately shut down the flame, otherwise, will make the piston and cylinder liner bonding. 3 valve drop cylinder