From:
Chris Barber <cbarber@texasattorney.net>
To:
Rotary motors in aircraft
<flyrotary@lancaironline.net>
Sent:
Sat, December 25, 2010 5:20:43 PM
Subject:
[FlyRotary] Re: Chris - Update needed
I was hesitant to provide info as I was having oil
pressure issues again and I dreaded the idea of posting
having to pull the engine again. I could just hear Al
Wicks keyboard tuning up. :-)
Anyway, I started basic trouble shooting, had removed the
prop preparing to pull the engine off. Before I did so I
figured it would be less messy to drain the pan (gee, ya
think?). When I did so I only had about one quart come
out. Odd?
I added oil, removed the hose from the cooler and cranked
her over remotely and oil flowed strong and in quantity.
So I checked and secured my hose connections, added about
five quarts of Royal Purple and cranked her up sans prop,
confidant that I was comfortable enough with the engine to
keep her from over spinning.
I checked the manual pressure gauge I had attached and it
was pegged at 80, up from 20. Reinstalled my EC2 electric
gauge and got the same result.
Now, this turbo with out the prop is way quieter. Without
the prop it produces a low throaty rumble that say POWER.
Except for the exhaust (rich mixture due to cold temp),
noise and spinning prop flange you could not tell it was
running. It was dead smooth. It was kind of weird walking
were the prop usually is while it was running. Not a good
habit.
All three starts produced good oil press at around 2600
fpm.
Check the basics (or so I hope and this isn't some new
anomolie).
Mark, the ecu is back in. The engine seems to be running
strong and smooth. I am developing just a hair over 6300
rpm static at about 34 map. That is with the IVO inflight
adjustable set at it's finest setting of about 45 degree.
Another distraction is my EGT readings working. I have
discussed this previously and still need to assess it
along with bad fuel pressure readings.
My current project, if the oil pressure is ok, is to
develop a hot start routine. Currently it wants full rich
and a few shots of prime for a cold start. Cold it starts
easily.
However, warm start is a pita. I seem to be having luck
with severe lean mixture until it catches and fires up.
Otherwise, it seems just about to catch, but doesn't quite
do so. It may take a few attempt and excessive cranking,
and of course holding my tongue just right. Also, what
seems to have made a big difference too and making warm
cranks better is two new batteries with a combined
cranking amps of 710, up from what was probably only about
350 ish CAmps before.
Other than that I am working on the devil in the details.
Geesh there are a lot of details, but at last hopefully it
is not proof of concept, but flight ready.
Questions?????? :-)
Sent from my iPhone 4
On Dec 25, 2010, at 3:41 PM, "Mark Steitle" <
msteitle@gmail.com>
wrote:
> Chris,
>
> You've been silent for too long. I was curious if
you ever got your EC-2 back from being checked &
upgraded? If so, was that the problem? How about a
status update?
>
> Mark
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