The crankshaft may have failed from metal fatigue. I would have the block magna-fluxed and another used crankshaft. We had a brand new crankshaft to break in a new engine. It was from a military vehicle and we were running it on a stationary dynamometer. I was on the midnight shift and the engine made a terrible noise and the scale reading on the dynamometer was vibrating bad. I shut the engine down and called the project engineer at home. He said to standby until he arrived.
When he arrived he wanted to hear the engine noise so I stared the engine and he said to shut it down, but it took awhile since the dynamometer kept spinning the engine. We took an oil sample and pulled the engine off the test stand after disconnecting all the instrumentation. Dropped the oil pan and found the crankshaft had broken in the counterweight. The dayshift installed a new shaft and the second shift installed the engine on the test stand. The test continued when my shift started and we had no more failures. Hal
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Today's Featured Article - The Day Tractor Lovers Dream About - by Angus Crawford. The day started at five o'clock on the morning of Friday, the January 29, 1999. My father, my sister, my uncle, my cousin and myself all climbed into my uncle's Toyota van. It was six thirty in the morning and we had a long day ahead. We traveled for six and a half hours to our destination - a little country town with a population of no more then one hundred and fifty people (57 of them being children under the age of thirteen). We arrived hoping to meet up with a man we knew had over one
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