Re: Dumbo The Flying Elephant
I removed a piston and rod. Checked the stretch of the rod bolts and the bolts matched the information on my build sheet. When relaxed the numbers agreed again. No sign of cap fretting or back side of bearing insert micro welding itself to the rod. Rings seemed to take to piston and cylinder wall. Top two rings were separated by about 120*, the oil rails were lined up over each other. Was that the reason the top of piston had a little extra carbon build up?
It will be good to know how round and straight the cylinder walls stayed. Our toy airplane engines ran well when they were round and straight.
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