Condensation and the sludge buildup that
would result was my main concern since the M20
is not dis-assembleable for cleaning like the
Walker/Air Wolf unit. At each annual I soak it in
AvGas and then blow it out with compressed air.

I can understand condensation, but sludge?

With regular flying, and scheduled oil and filter changes, what is the
source of sludge in an M20? Combustion bi-products?
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"