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References: <list-4666629@logan.com>
Date: Thu, 6 Jan 2011 20:15:43 -0800 (PST)
From: Kelly Troyer <keltro@att.net>
Subject: NOTICE  !!!!   Engine run-on with fuel pumps off!
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
In-Reply-To: <list-4666629@logan.com>
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One thought comes to mind David..........Our little EFI fuel pumps are both=
 =0Alubricated=0Aand cooled by fuel so try not to run them on an empty tank=
 as they do not last =0Avery=0Along without fuel...........<:)..........Int=
eresting situation though !!=0A=A0=0AKelly Troyer=0A"DYKE DELTA JD2" (Event=
ually)=0A"13B ROTARY"_ Engine=0A"RWS"_RD1C/EC2/EM2=0A"MISTRAL"_Backplate/Oi=
l Manifold=0A"TURBONETICS"_TO4E50 Turbo=0A=0A=0A=0A=0A_____________________=
___________=0AFrom: "hoursaway1@comcast.net" <hoursaway1@comcast.net>=0ATo:=
 Rotary motors in aircraft <flyrotary@lancaironline.net>=0ASent: Thu, Janua=
ry 6, 2011 9:32:30 PM=0ASubject: [FlyRotary] NOTICE !!!! Engine run-on with=
 fuel pumps off!=0A=0A=0ALong story short,=A0 standard eng. shut-down,=A0 m=
ain fuel pump switch to OFF,=A0 half =0Asecond or less, =A0eng. quits rathe=
r quickly.=A0=A0=A0 """UNLESS"""=A0=A0 you are low on =0Afuel,,, & picked u=
p some air in the lines,,,=A0 eng. remained running,,,=A0 after =0Ashaking =
the thoughts of gremlins out of my head,=A0 possible as long as 20-30 =0Ase=
conds & quick look at fuel gauge for tank I was on the thought came to me t=
hat =0AI picked up air from empty tank & pressurized it with fuel pump, I n=
ow have an =0Aair pressure-fuel pump backup sys. so eng. will remain runnin=
g, had to shut down =0Aelect. to stop eng.=A0 How about that one to start t=
he year.=A0=A0 David R. Cook=A0 RV6A =0ARotary.
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<html><head><style type=3D"text/css"><!-- DIV {margin:0px;} --></style></he=
ad><body><div style=3D"font-family:arial, helvetica, sans-serif;font-size:1=
2pt"><DIV></DIV>=0A<DIV>One thought comes to mind David..........Our little=
 EFI fuel pumps are both lubricated</DIV>=0A<DIV>and cooled by fuel so try =
not to run them on an empty tank as they do not last very</DIV>=0A<DIV>long=
 without fuel...........&lt;:)..........Interesting situation though !!<BR>=
&nbsp;</DIV>=0A<P>Kelly Troyer<BR><STRONG><FONT size=3D4>"DYKE DELTA JD2"</=
FONT> <FONT size=3D1>(Eventually)</FONT></STRONG></P>=0A<P>"13B ROTARY"_ En=
gine<BR>"RWS"_RD1C/EC2/EM2<BR>"MISTRAL"_Backplate/Oil Manifold</P>=0A<P>"TU=
RBONETICS"_TO4E50 Turbo</P>=0A<DIV><BR></DIV>=0A<DIV style=3D"FONT-FAMILY: =
arial, helvetica, sans-serif; FONT-SIZE: 12pt"><BR>=0A<DIV style=3D"FONT-FA=
MILY: times new roman, new york, times, serif; FONT-SIZE: 12pt"><FONT size=
=3D2 face=3DTahoma>=0A<HR SIZE=3D1>=0A<B><SPAN style=3D"FONT-WEIGHT: bold">=
From:</SPAN></B> "hoursaway1@comcast.net" &lt;hoursaway1@comcast.net&gt;<BR=
><B><SPAN style=3D"FONT-WEIGHT: bold">To:</SPAN></B> Rotary motors in aircr=
aft &lt;flyrotary@lancaironline.net&gt;<BR><B><SPAN style=3D"FONT-WEIGHT: b=
old">Sent:</SPAN></B> Thu, January 6, 2011 9:32:30 PM<BR><B><SPAN style=3D"=
FONT-WEIGHT: bold">Subject:</SPAN></B> [FlyRotary] NOTICE !!!! Engine run-o=
n with fuel pumps off!<BR></FONT><BR>=0A<STYLE type=3Dtext/css>p {margin:0;=
}</STYLE>=0A=0A<DIV style=3D"FONT-FAMILY: Arial; COLOR: #000000; FONT-SIZE:=
 12pt">=0A<P>Long story short,&nbsp; standard eng. shut-down,&nbsp; main fu=
el pump switch to OFF,&nbsp; half second or less, &nbsp;eng. quits rather q=
uickly.&nbsp;&nbsp;&nbsp; """UNLESS"""&nbsp;&nbsp; you are low on fuel,,, &=
amp; picked up some air in the lines,,,&nbsp; eng. remained running,,,&nbsp=
; after shaking the thoughts of gremlins out of my head,&nbsp; possible as =
long as 20-30 seconds &amp; quick look at fuel gauge for tank I was on the =
thought came to me that I picked up air from empty tank &amp; pressurized i=
t with fuel pump, I now have an air pressure-fuel pump backup sys. so eng. =
will remain running, had to shut down elect. to stop eng.&nbsp; How about t=
hat one to start the year.&nbsp;&nbsp; David R. Cook&nbsp; RV6A Rotary.</P>=
</DIV></DIV></DIV></div></body></html>
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