Received-SPF: none
 receiver=logan.com; client-ip=76.96.30.48; envelope-from=cbarber@texasattorney.net
Message-ID: <4A463F23.2040204@TexasAttorney.net>
Date: Sat, 27 Jun 2009 10:47:47 -0500
From: Christopher Barber <CBarber@TexasAttorney.net>
User-Agent: Thunderbird 2.0.0.21 (Windows/20090302)
MIME-Version: 1.0
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: More progress, more questions....
References: <list-3734569@logan.com>
In-Reply-To: <list-3734569@logan.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

Yes, it is the prop.  The engine was running and I was using the camera 
built into my phone.  So, I tend to get the strange visual on the prop.

All the best,

Chris

Bill Bradburry wrote:
> I assume that is your prop I see sticking up behind the temp gage picture???
> :>)
>
> Bill B 
>
> -----Original Message-----
> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
> Behalf Of Christopher Barber
> Sent: Saturday, June 27, 2009 2:40 AM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] More progress, more questions....
>
> Back out at the hangar today and some real progress made.
>
> Even though I am still having to "pump" the throttle to get the RPM down
> after having the throttled advanced, I do have the rpm and manifold pressure
> down.  I cannot find a leak, HOWEVER, when y'all (Bill I think) mentioned my
> new injectors it dawned on me that I installed the new injectors and then
> cranked it pretty much right up to see if it would even start.  From there I
> started playing with it.  I had meant to reset everything and start anew.
> However, I got caught up in the process and never got back to a base.  So,
> today I reset the EC2 to the factor setting and started it up and it ran
> even better.  Did the Mode 3 (at 22 inch manifold pressure), 6, 2, 1 thing.
> The engine is running better than ever.  I have the manifold pressure in the
> 12 range.
>
> I am concerned about some sputtering that is present around idle.  It is
> generally pretty smooth, but sputters too. Not sure what is causing it yet.
> Thoughts?
>
> I still have some inconsistencies.  Today, I was running the engine at idle
> and everything seemed fine. It was idling at about 1500 rpm.  I looked away
> and when I looked back, the rpm was reading about 3300 rpm.  
> Nothing had changed and the engine was still running at idle but the rpm was
> showing 3300, MP was 12.7.  I increased the throttle to see what would
> happen and the rpm shoot up to 8000 rpm.  What the hell?  I kept playing
> with the throttle and it continued.  I shut down and restarted and it
> continued.  Shut down again and grabbed a soda, came back and fired it up
> and it was showing normal again.  Hmmmmm?  I checked grounds but am not sure
> which wire to check...guess the one for the tack, but it is difficult to
> check when it goes away on its own.  DOH?  I will have to keep an eye on it.
>
> Also, even when the MP is below 15 and the secondaries should not be on, if
> I shut down the primaries the engine still runs.  Shouldn't it quit if I
> turn off the primaries since the secondaries should not kick in until the
> staging point?  Maybe this is too basic, but what am I missing.  Do the
> secondaries turn on automatically if I turn off the primaries as a safety
> featur????  It seems as if I may have read this somewhere, but I am not
> sure. I know the switch to the primaries and secondaries are wired correctly
> for the power and do not understand why they would run when power is
> removed.
>
> Next, in the documentation for the EC2, the diagrams and part of the text it
> shows that most of the wires should be run using 22 and/or 20 AWG wire for
> the connections.  However, in ONE place in the document it states that the
> power wire to the coils should be 16 AWG.  Dang, I just rewired these down a
> special conduit using 20 AWG.  Do I need to redo them with 16.  My concern
> is whether the larger wire will fit down the tube.  I am not sure what is
> the most current documentation (btw, they differences are in the same
> manual)  Currently the 20 seems to be working well and I would prefer not to
> have to change them again, however, I do not wish to have a potential
> problem looming that surely will be easier to remedy now than later.  This
> is about a 15 foot run in the Velocity. BOB?
>
> Finally, for today anyway <g>, while my EM2 seems to be giving me good solid
> data, I do seem to have a problem with my mixture indicator.  The little bar
> graph jumps all over the place and gives me no real solid indication.  While
> I am pretty good at tuning by ear, it kinda defeats the purpose to have this
> great technology to be able to get some precise measures, if my key
> indicator is not giving me what I need.  I have of course checked the wires
> and even replaced the OXY sensor in the exhaust.  Thoughts.
>
>
> Oh, a final comment on progress.  My cooling continues to impress me. 
> The bigger rad/fan and oil cooler is able to idle and even take some power
> for some amount of time allowing me to fiddle with things.  To REALLY
> illustrate the point, take a gander at the attached jpeg showing the ramp
> temperature this fine Houston afternoon....ok, in case you cannot open the
> file, it was 112.5 on the ramp and 100 in the shade.  I was still cooling
> <g>
>
> Also, here is a shot of the weird RPM, being much higher than is should be,
> with a low MP.
>
>
>
> Thanks guys and gals.
>
> All the best,
>
> Chris
>
>
> --
> Homepage:  http://www.flyrotary.com/
> Archive and UnSub:   http://mail.lancaironline.net:81/lists/flyrotary/List.html
>
>