Dick wrote:
snip
Light Plane Maintenance book references "hand proping before first
start of
day to find 'flat' cylinder". Not sure I can identify a rapid falloff
in
turning resistance (books definition).

I think you can. It should be pretty straight forward. As you
rotate the prop you can feel the resistance from each cylinder on the
compression stroke. If you hit a cyl. with a stuck valve, you'll
notice the difference in resistance right away. If it's quiet, you
should also hear hissing at the exhaust pipe if it's an exhaust valve.


John Galban=====N4BQ (PA28-180)