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Message-ID: <1b4b137c0905090836s405e3164q604472159a82cc76@mail.gmail.com>
Subject: Re: [FlyRotary] Initial Tuning at Low RPM - surging?
From: Tracy Crook <tracy@rotaryaviation.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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One more question Mike,

What did you consider 'low rpm'?

Tracy

On Fri, May 8, 2009 at 9:44 PM, Mike Fontenot <
mikef@apexconsultingservices.com> wrote:

> I started up the engine tonight, just to be sure it really worked last
> Tuesday. Started just fine but there was a
> kind of surging of the engine at the lowest RPM. If I increased RPM it
> started to smooth out. Also increasing the mixture
> helped a little, but not a lot.
>
> My question is: is this surging at low RPM indicative of something specific
> (too lean/rich mixture, injectors not
> putting out too little/much).  Something like that?  I am just trying to
> get a feel for any general rule when running in that
> manner.  And if there is no consistency, that's good to know as well.
>
> Thanks,
>
> --
> Mike
>
> ================================
> Mike Fontenot
> Apex Consulting & Services LLC
> Lakewood, Colorado
> 303 / 731-6645
> mikef AT apexconsultingservices DOT com
> ================================
>

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One more question Mike,<br><br>What did you consider &#39;low rpm&#39;?<br>=
<br>Tracy<br><br><div class=3D"gmail_quote">On Fri, May 8, 2009 at 9:44 PM,=
 Mike Fontenot <span dir=3D"ltr">&lt;<a href=3D"mailto:mikef@apexconsulting=
services.com">mikef@apexconsultingservices.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;">I started up the =
engine tonight, just to be sure it really worked last Tuesday. Started just=
 fine but there was a <br>
kind of surging of the engine at the lowest RPM. If I increased RPM it star=
ted to smooth out. Also increasing the mixture<br>
helped a little, but not a lot.<br><br>My question is: is this surging at l=
ow RPM indicative of something specific (too lean/rich mixture, injectors n=
ot<br>putting out too little/much).=A0 Something like that?=A0 I am just tr=
ying to get a feel for any general rule when running in that<br>

manner.=A0 And if there is no consistency, that&#39;s good to know as well.=
<br><br>Thanks,<br clear=3D"all"><br>-- <br>Mike<br><br>=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D<br><font color=3D"#888888">Mike Fontenot<br>Apex Consulting &amp; Servi=
ces LLC<br>
Lakewood, Colorado<br>
303 / 731-6645<br>mikef AT apexconsultingservices DOT com<br>=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D<br>
</font></blockquote></div><br>

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