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Date: Tue, 29 May 2012 10:02:34 -0500
Message-ID: <CAHh3jbP-A07ybc2NrPX_ZGmZ63Z0C_VonEb1gNk90ka2kfoR0g@mail.gmail.com>
Subject: Re: [FlyRotary] injector imbalance
From: Mark Steitle <msteitle@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Content-Type: multipart/alternative; boundary=0015175cae18f7fd1a04c12e1fd0

--0015175cae18f7fd1a04c12e1fd0
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Steve,

I almost understand what you're telling me.  Bill Shultz commented on the
Blue Mountain EFIS using the #1 injector for RPM.  So, if the BMA EFIS is
connected to the #1 injector lead, then it could be causing the over rich
condition on that rotor.   I'm not sure if I did that or not as my BMA RPM
indicator has never worked.  It has been many years since I installed the
EFIS, so I don't recall if this was done or not.  But this will be the next
thing I will check.

Thanks,
Mark

On Tue, May 29, 2012 at 9:47 AM, Steven W. Boese <SBoese@uwyo.edu> wrote:

>  Mark,
>
>
>
> If a device is connected to the EC2 side of the primary injector of rotor
> 1 and this device has diode protection from the inductive spike produced by
> the injector winding, then this injector will deliver more fuel than the
> injector pulse width would indicate.  The appearance on the O-scope would
> more evident in the lack of an inductive spike for this injector rather
> than in a difference in the signal pulse width.
>
>
>  Steve Boese
> RV6A, 1986 13B NA, RD1A, EC2
>

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Steve,<div><br></div><div>I almost understand what you&#39;re telling me. =
=A0Bill Shultz commented on the Blue Mountain EFIS using the #1 injector fo=
r RPM. =A0So, if the BMA EFIS is connected to the #1 injector lead, then it=
 could be causing the over rich condition on that rotor. =A0 I&#39;m not su=
re if I did that or not as my BMA RPM indicator has never worked. =A0It has=
 been many years since I installed the EFIS, so I don&#39;t recall if this =
was done or not. =A0But this will be the next thing I will check. =A0</div>
<div><br></div><div>Thanks,</div><div>Mark=A0<br><br><div class=3D"gmail_qu=
ote">On Tue, May 29, 2012 at 9:47 AM, Steven W. Boese <span dir=3D"ltr">&lt=
;<a href=3D"mailto:SBoese@uwyo.edu" target=3D"_blank">SBoese@uwyo.edu</a>&g=
t;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">




<div>
<div style=3D"direction:ltr;font-size:10pt;font-family:Tahoma">
<p>Mark,</p>
<p>=A0</p>
<p>If a device is connected to the EC2 side of the primary injector of roto=
r 1 and this device has diode protection from the inductive spike produced =
by the injector winding, then this injector will deliver more fuel than the=
 injector pulse width would indicate.=A0
 The appearance on the O-scope would more evident in the lack of an inducti=
ve spike for this injector rather than in a difference in the signal=A0puls=
e width.=A0</p>
<div>
<p>=A0</p>
<div><font face=3D"Tahoma">
<div><font face=3D"tahoma">Steve Boese</font></div>
<div><font face=3D"tahoma">RV6A, 1986 13B NA, RD1A, EC2</font></div>
</font></div>
</div>
</div>
</div>

</blockquote></div><br></div>

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