Oil analysis came back with high count of copper
#3 cylinder low on compressions

Do you taxi full rich?

We used to, which occasionally have us slightly low compression
readings on one or more cylinders in the hangar. The low cylinder
would move, as there was nothing really wrong. G We now lean
aggressively until we get to the runup area, and have never seen the
problem again.

Was this due to lead fouling?
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"