Hi Paul-

Cowling work is now done, as is all the engine ducting, etc.  We fired
up the engine for the first time in a year yesterday.  Started on the
3rd blade.  Running quite rough at 2500rpm so it clearly needs some
tuning love performed.

When you were last out here, we did a quickie-job on getting the CAS set
correctly.  So I suppose it could need some adjusting.  And of course
the EC2 will need tuning as well.

One thing that is clearly wrong is the temps reported by the OAT
sensor.  It is reporting -64F.  I'm wondering whether that could confuse
the EC2 enough to make tuning attempts futile.  I sent an email off to
Tracy but have not heard back yet.

Anyway -- If you can point me at a 13b-tuning-for-dummies reference that
would be great.  Absent that, I will follow Tracy's directions -- which
are somewhat terse and assume a general knowledge of tuning that I lack.

Whatever became of Doc?  Maybe I could coerce him into visiting for a
tuning session.

Regards,

Mark  (Rocky Mtn High)


I don't think the air temp sensor makes all that much difference.
Glad to hear the p-port engine started up so quick.
Do you have the prop on it? Tracy is the authority on the tuning.
You need a ram air box on there too to retain the raw fuel stand
off. Here is something like what I recommend.
If made from aluminum sheet... bend the flanges out so no loose fasteners
can get sucked into the engine. A transparent top would tell
you more what is going on.


Paul Lamar