On Feb 11, 8:35*pm, "Phil Kangas" wrote:




Yah, but, the flywheel is cast iron and the ring
is steel. Cast won't
move as much as steel. We need some actual
measurements!!

Per The Engineering Toolbox

Grey cast iron 6.0 (10-6 in/in oF)

Steel 7.3 (10-6 in/in oF)

Dan