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#1
September 19th 07, 07:19 PM
posted to rec.aviation.piloting
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running over-square
wrote in message ps.com... On Sep 18, 1:40 pm, Newps wrote: wrote: I have the cylinder from an IO-520 here that had been detonating. The head is blown clean off the cylinder; the aluminum fractured at the top of the cylinder threads. Things would get very noisy, shaky, smoky and scary if that happened. Cylinder pressures go out of sight during detonation, as do CHTs. That sounds like preignition, not detonation. Detonation is rarly fatal to an engine. http://en.wikipedia.org/wiki/Engine_knocking http://www.streetrodstuff.com/Articl...ne/Detonation/ http://www.sacskyranch.com/deton.htm http://www.americanaviationinc.com/effectsNavajo.html http://www.avweb.com/news/pelican/182132-1.html (Detonation Myths) 
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