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From: Chris Barber <cbarber@texasattorney.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
CC: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Chris - Update needed
Thread-Topic: [FlyRotary] Chris - Update needed
Thread-Index: AQHLpHyCvqoygGXjXE64wJvvzGlLj5Oxy95R
Date: Sat, 25 Dec 2010 23:20:43 +0000
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I was hesitant to provide info as I was having oil pressure issues again an=
d I dreaded the idea of posting having to pull the engine again. I could ju=
st 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 d=
rain the pan (gee, ya think?). When I did so I only had about one quart com=
e 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 Ro=
yal Purple and cranked her up sans prop, confidant that I was comfortable e=
nough with the engine to keep her from over spinning.=20

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 produ=
ces a low throaty rumble that say POWER. Except for the exhaust (rich mixtu=
re 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.=20

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).=20

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 deg=
ree.=20

Another distraction is my EGT readings working.  I have discussed this prev=
iously and still need to assess it along with bad fuel pressure readings.=20

My current project, if the oil pressure is ok, is to develop a hot start ro=
utine. Currently it wants full rich and a few shots of prime for a cold sta=
rt. Cold it starts easily.=20

However, warm start is a pita. I seem to be having luck with severe lean mi=
xture until it catches and fires up. Otherwise, it seems just about to catc=
h, but doesn't quite do so. It may take a few attempt and excessive crankin=
g, and of course holding my tongue just right. Also, what seems to have mad=
e a big difference too and making warm cranks better is two new batteries w=
ith a combined cranking amps of 710, up from what was probably only about 3=
50 ish CAmps before.  =20

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 flig=
ht ready. =20

Questions?????? :-)

Sent from my iPhone 4

On Dec 25, 2010, at 3:41 PM, "Mark Steitle" <msteitle@gmail.com> wrote:

> Chris, =20
>=20
> 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 abo=
ut a status update? =20
>=20
> Mark