"Peter Dohm" wrote in message
...
Yes. I know that they do, and new design engines are notorious; as are
design improvements, changes of supplier, etc. And they include plenty of
reasons for loss of power not caused by the crankshaft!

However, my concerns include, reliability, maintainability, and eventual
replacement; and I think you understand my point.

At this point, the Jabiru 3300 is the only engine that really looks to me
like a promising replacement; and I really don't know its service record.
However, albeit at a higher dollar price, its features seem to preserve:
1)
similar or lighter weight, 2) similar or higher power, 3) six cylinder
smoothness, 4) reasonably slow idle, and 5) similar dimmensions.
Additional
benefits are designed in dual ignition and an updraft intake system,
similar
to Lycoming and Continental, which should be more resistant to ice.

Peter..........

Since you answered seriously, I will too. I can agree on the higher price
and on #1-3 and #5. I don't understand #4 - do Corvairs idle unreasonably
high? The dual ignition is good if the Jabiru 3300 truly has two stand-alone
systems. The intake direction is irrelevant if the Corvair is fuel-injected
or has a heated intake manifold. Updraft carbs are a lot better at
preventing fire as well. The small Continentals will ice up if you look at
them cross-eyed even with updraft intake.

Rich S.