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Date: Sat, 15 Oct 2011 00:32:50 -0700
Message-ID: <CAOFHbnq5Hi0bhUOSxG-752fm9bvqe47Fen+RNkH7s35JuSqiiw@mail.gmail.com>
Subject: Re: [FlyRotary] Re: Bill Eslick's EC2 inspection
From: David Leonard <wdleonard@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Man,  I hate that cold start switch  ;-)

Dave Leonard

On Fri, Oct 14, 2011 at 1:02 PM, Tracy <rwstracy@gmail.com> wrote:

> Thought the group would like to hear what i found when I Finally had a
> chance to closely examine Bill's EC2.   I was hoping to find a definitive
> reason behind his sudden and complete loss of power on takeoff on his last
> flight.
>
> On powering it up on the bench I found both A and B controllers Working
> normally.   Bill noted in his report that in the 'Fly The Plane' situation
>  called for in a power failure during takeoff he had not tried switching to
> controller B.  It does not appear that it would have done any good this
> time.
>
> None of the parameters were set outside the expected range so no sign of
> data corruption.  In fact the only thing notable about the data downloaded
> from it was the unusually smooth programming of the MAP table.  Most of the
> time I find units returned for updates with choppy looking data in the table
> indicating a lack of care or proper methodology in setting it up.  A and B
> controllers had identical data.
>
> The PCM was also returned with the unit so just in case the control panel
> was the cause I substituted it for the bench test panel I normally use.
> Thought I saw a problem because the injection pulse width was so large that
> it could well have caused engine flooding.  This was caused by the mixture
> control being set fairly high and the cold start switch being in the on
> position.  This does not prove anything because that could easily have
> happened during removal of the panel from the plane or while packing it for
> shipping.  When the switch and mixture control was returned to normal
> settings the injection pulse width returned to normal.
>
> Ran the unit on the bench for several hours while heating and subjecting it
> to vibration but nothing else turned up.
>
> Tracy
> --
> Homepage:  http://www.flyrotary.com/
> Archive and UnSub:
> http://mail.lancaironline.net:81/lists/flyrotary/List.html
>



-- 
David Leonard

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net

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Man,=A0 I hate that cold start switch=A0 ;-)<br><br>Dave Leonard<br><br><di=
v class=3D"gmail_quote">On Fri, Oct 14, 2011 at 1:02 PM, Tracy <span dir=3D=
"ltr">&lt;<a href=3D"mailto:rwstracy@gmail.com">rwstracy@gmail.com</a>&gt;<=
/span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"border-left: 1px solid rgb(204, =
204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Thought the group=
 would like to hear what i found when I Finally had a chance to closely exa=
mine Bill&#39;s EC2. =A0 I was hoping to find a definitive reason behind hi=
s sudden and complete loss of power on takeoff on his last flight.<br>

<br>
On powering it up on the bench I found both A and B controllers Working nor=
mally. =A0 Bill noted in his report that in the &#39;Fly The Plane&#39; sit=
uation =A0called for in a power failure during takeoff he had not tried swi=
tching to controller B. =A0It does not appear that it would have done any g=
ood this time.<br>

<br>
None of the parameters were set outside the expected range so no sign of da=
ta corruption. =A0In fact the only thing notable about the data downloaded =
from it was the unusually smooth programming of the MAP table. =A0Most of t=
he time I find units returned for updates with choppy looking data in the t=
able indicating a lack of care or proper methodology in setting it up. =A0A=
 and B controllers had identical data.<br>

<br>
The PCM was also returned with the unit so just in case the control panel w=
as the cause I substituted it for the bench test panel I normally use. =A0 =
Thought I saw a problem because the injection pulse width was so large that=
 it could well have caused engine flooding. =A0This was caused by the mixtu=
re control being set fairly high and the cold start switch being in the on =
position. =A0This does not prove anything because that could easily have ha=
ppened during removal of the panel from the plane or while packing it for s=
hipping. =A0When the switch and mixture control was returned to normal sett=
ings the injection pulse width returned to normal.<br>

<br>
Ran the unit on the bench for several hours while heating and subjecting it=
 to vibration but nothing else turned up.<br>
<br>
Tracy<br>
<font color=3D"#888888">--<br>
Homepage: =A0<a href=3D"http://www.flyrotary.com/" target=3D"_blank">http:/=
/www.flyrotary.com/</a><br>
Archive and UnSub: =A0 <a href=3D"http://mail.lancaironline.net:81/lists/fl=
yrotary/List.html" target=3D"_blank">http://mail.lancaironline.net:81/lists=
/flyrotary/List.html</a><br>
</font></blockquote></div><br><br clear=3D"all"><br>-- <br>David Leonard<br=
><br>Turbo Rotary RV-6 N4VY<br><a href=3D"http://N4VY.RotaryRoster.net">htt=
p://N4VY.RotaryRoster.net</a><br><a href=3D"http://RotaryRoster.net">http:/=
/RotaryRoster.net</a><br>


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