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| View Original: | B6N2 mec turning prop.jpg (507x281) | |||
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| Keywords: B6N2 mec turning prop.jpg Nakajima B6N2 before starting the engine The mechanic is manually turning the prop to prevent hydraulic lock A hydraulic lock occurs in a cylinder when it gets full of oil and the connecting rod attempts to displace it Liquids are not compressible so it will bend or possibly break the connecting rod This used to be a real problem in radial engines with a bottom cylinder the oil would run down into the lower cylinder This is why you see radials being pulled through by hand before starting the engine http //www ijnafpics com/B W/b6n_01 jpg www ijnafpics com PD-Japan-oldphoto Nakajima B6N | ||||
