On Mon, 20 Mar 2006 07:26:24 -0600, "Dan Luke"
wrote:

I'm talking about where the prop stops when I shut down the engine. What
would cause a 2-blade, constant speed prop on a Lyc. O-360 to suddenly begin
stopping in a different position than it had every time for the last 3
years?

My prop has always stopped parallel to the pavement until last night, when
it stopped at 10:30/4:30 position. I pulled it through two complete
revolutions and compressions felt ok.

If I have the engine idle-ing less at or less than 1000RPM, the prop
on the Lyc O-360-A4A on my PA28-180 stops in the same position 95% of
the time.

If the RPM is higher than 1000 (before killing the mixture), it
(frequently) stops at a different position.