a: Piston ring ~
b: a spring
What: "A piston ring is like a spring. Engine bores are not really round. Manufacturing imperfections, cylinder wear, and head bolt loads make cylinders out of round when you're looking at a micron scale." A discussion of piston rings is in the link.
Useful?
Writer: Verruckt
LCC:
Where:
Date: Oct 3 2013 6:30 PM
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