KB> .. I even
 KB> had to sandpaper the piston and sleeve a bit to reduce binding
 KB> caused by the crash.
 EW> Oh, No! I'd suggest that you have some MAJOR problems with your engine
 EW> if the piston and sleeve had to be sandpapered to work again.
The sanding reduced the binding resistance below the resistance 
produced by compression.  It's annoying but not material, I think.  
The engine runs on the test stand, we'll see if it flies. 
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