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几年前在540 rat的博客上见过这个发动机的故障案例，根源是错误的间隙和错误的机油10w60。
“After going through all that, it turned out that the root cause of all those failures was that BMW had designed/built the engines with insufficient rod bearing clearance (barely large enough for 5W30 motor oil and WAY too tight for super thick oil), insufficient connecting rod side clearance, and they called for insanely thick 10W60 motor oil, which is WAY too thick for acceptable oil flow/lubrication/cooling. It was a perfect storm of doing multiple things completely wrong to actually “cause” rod bearing failures. It was extremely disappointing to see BMW do such a poor job at designing/building those engines. They actually unintentionally designed the engines so that the rod bearings “would” fail. I would have expected far better from them.” |
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楼主: nApoleon
310112100042806
发表于 2021-2-7 15:06
