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1台日本神钢公司产250型挖掘机,大修后的柴油机怠速运转时,副水箱间歇性向外喷水,但水温并没有达到“开锅”的温度,再运转一段时间则出现水位及水温报警现象,打开副水箱盖,可以很明显地看到有水泡冒出。根据常理判断是柴油机汽缸垫冲坏,导致气体窜进水循环系统,但是拆开汽缸盖检查,汽缸垫没有明显损坏,
A Japanese Kobelco excavator 250, overhaul after the diesel engine idle operation, the sub-tank intermittently outward water, but the water temperature did not reach the “open pot” temperature, and then run for a period of time there is the water level and water temperature Alarm phenomenon, open the sub-tank cover, you can clearly see a bubble pops up. According to common sense to determine the diesel engine cylinder pad damage, leading to gas into the water circulation system, but open the cylinder head inspection, cylinder pad no obvious damage,