X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost06.isp.att.net ([204.127.217.106] verified) by logan.com (CommuniGate Pro SMTP 5.3.4) with ESMTP id 4183247 for flyrotary@lancaironline.net; Mon, 29 Mar 2010 23:49:18 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.217.106; envelope-from=keltro@att.net DKIM-Signature: v=1; q=dns/txt; d=att.net; s=dkim01; i=keltro@att.net; a=rsa-sha256; c=relaxed/relaxed; t=1269920958; h=Content-Type: MIME-Version:In-Reply-To:Message-Id:Date:Subject:To:From; bh=h1oINg s16xPr/1N769/dNC5BLSlnYCMph76IHF7T4Cg=; b=F3wZP9lzJnMR0qWK866HgWtV2 GU8WH4mRu/Tw20Jn5l5Ft8c1dPhFOd0IZ5fc4HIe7nA0pSgLjmkB38l1ZIQiA== Received: from fwebmail18.isp.att.net ([204.127.221.118]) by isp.att.net (frfwmhc06) with SMTP id <20100330034841H06007uo5ke>; Tue, 30 Mar 2010 03:48:41 +0000 X-Originating-IP: [204.127.221.118] Received: from [208.114.39.20] by fwebmail18.isp.att.net; Tue, 30 Mar 2010 03:48:41 +0000 From: "Kelly Troyer" To: "Rotary motors in aircraft" Subject: Re: FLIGHT DATA 1 Date: Tue, 30 Mar 2010 03:48:41 +0000 Message-Id: <033020100348.28239.4BB1749900031BCA00006E4F22230703629B0A02D29B9B0EBF019D9B040A05@att.net> In-Reply-To: X-Mailer: AT&T Message Center Version 1 (Mar 2 2009) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_28239_1269920921_0" --NextPart_Webmail_9m3u9jl4l_28239_1269920921_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Some of the group have used a common metal fuel filter (with hose barbs each end) to add volume plus the filter media.........Available at any auto parts store and relatively cheap................. -- Kelly Troyer "Dyke Delta"_13B ROTARY Engine "RWS"_RD1C/EC2/EM2 "Mistral"_Backplate/Oil Manifold -------------- Original message from "Mike Wills" : -------------- > I used a couple of short lengths (maybe 2"?) of sched 40 PVC pipe, pipe > caps, and brass tubing for the hose connections. I'm not sure that the > packing Don used is necessary - the goal is to add some volume to get some > damping. A more elegant way would be to electrically filter/damp the MAP > sensor outputs, but this is cheap, easy, and works. > > Mike Wills > > -------------------------------------------------- > From: "Bill Bradburry" > Sent: Monday, March 29, 2010 9:50 AM > To: "Rotary motors in aircraft" > Subject: [FlyRotary] Re: FLIGHT DATA 1 > > > Don, > > Thanks for the quick reply. One and a half tenths you say. I suppose it > > should be rock steady especially with the engine off. I will have to > > check > > that. It appears that we could all benefit from trying to remove the > > pulses > > from the MP line. I will visit Home Depot. > > > > Bill B > > > > -----Original Message----- > > From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On > > Behalf Of Don Walker > > Sent: Monday, March 29, 2010 12:36 PM > > To: Rotary motors in aircraft > > Subject: [FlyRotary] FLIGHT DATA 1 > > > > I have no idea how to compute power at different altitudes and my WAG is > > that different props and engines would make any comparison inexact at > > best. > > Ed probably would know best. > > The best way that I know of to determine if you need this is to look at > > your > > MP on the EM-2 at a steady RPM and see if it varies. Mine varied plus or > > minus 1 and a half tenths. If it varies with the engine OFF, you have a > > EC-map sensor problem. > > I went to Home Depot and got a Zoom oiler from the Swamp cooler > > department > > or where they sell oil for those of you who are lucky enough to live in > > hot > > humid places. Probably next to the WD-40. It has a small plastic cap and > > a > > spout that pulls out Several inches. I cut it off and inserted about 2 > > inches of it into the vacuum line going to the map sensor on the EC-2 then > > locked it in place using several nylon wire > > ties. It's about 1/16th inch ID, I never measured it. Greatly improved > > things, on the display and I got more RPMs. Then I made 2 accumulators > > using 2 inches of 1/2 ID tubing, rolled up green scubby pad tightly and > > inserted it into the tubing. Went to the hardware store and got 4, 1/8th > > inch barbed fittings (brass) x 1/4 MPT and inserted it into both sides of > > the tubing, hose clamp it tight and inserted it into the vacuum line. > > Don't > > remember if before or after the restriction. Even better now. Works > > great! > > Try it! Experiment! I love these cheap, quick hardware store fixes! > > > > Don Walker > > Flying N113BR > > > > -- > > Homepage: http://www.flyrotary.com/ > > Archive and UnSub: > > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > > > > > -- > > Homepage: http://www.flyrotary.com/ > > Archive and UnSub: > > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html --NextPart_Webmail_9m3u9jl4l_28239_1269920921_0 Content-Type: multipart/related; boundary="NextPart_Webmail_9m3u9jl4l_28239_1269920921_1" --NextPart_Webmail_9m3u9jl4l_28239_1269920921_1 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable
Some of the group have used a common metal fuel filter (with hose barb= s each
end) to add volume plus the filter media.........Available at any auto= parts store
and relatively cheap.................
 
3D"Fuel
--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/E= C2/EM2
"Mistral"_Backplate/Oil Manifold



 
-------------- Original message from "Mike Wills" <rv-4mi= ke@cox.net>: --------------


> I used a couple of short le= ngths (maybe 2"?) of sched 40 PVC pipe, pipe
> caps, and brass tubin= g for the hose connections. I'm not sure that the
> packing Don used= is necessary - the goal is to add some volume to get some
> damping= . A more elegant way would be to electrically filter/damp the MAP
> = sensor outputs, but this is cheap, easy, and works.
>
> Mike = Wills
>
> -------------------------------------------------- =
> From: "Bill Bradburry"
> Sent: Mo= nday, March 29, 2010 9:50 AM
> To: "Rotary motors in aircraft"
> Subject: [FlyRotary] Re: FLIGHT DATA 1 >
> > Don,
> > Thanks for the quick reply. One and = a half tenths you say.=20I suppose it
> > should be rock steady e= specially with the engine off. I will have to
> > check
> = > that. It appears that we could all benefit from trying to remove the <= BR>> > pulses
> > from the MP line. I will visit Home Depot= .
> >
> > Bill B
> >
> > -----Origi= nal Message-----
> > From: Rotary motors in aircraft [mailto:flyr= otary@lancaironline.net] On
> > Behalf Of Don Walker
> >= ; Sent: Monday, March 29, 2010 12:36 PM
> > To: Rotary motors in = aircraft
> > Subject: [FlyRotary] FLIGHT DATA 1
> > > > I have no idea how to compute power at different altitudes and m= y WAG is
> > that different props and engines would make any comp= arison inexact at
> > best.
> > Ed probably would know = best.
> > The best way that I know of to determine if you need th= is is to look at
> > your
> > MP on the EM-2 at a stead= y RPM and see if it varies. Mine varied plus or
> > minus 1 and a= half tenths. If it varies with the engine OFF, you have a
> > EC= -map sensor problem.
> > I went to Home Depot and got a Zoom oile= r from the Swamp cooler
> > department
> > or where the= y sell oil for those of you who are lucky enough to live in
> > h= ot
> > humid places. Probably next to the WD-40. It has a small p= lastic cap and
> > a
> > spout that pulls out Several i= nches. I cut it off and inserted about 2
> > inches of it into th= e vacuum line going to the map sensor on the EC-2 then
> > locked= it in place using several nylon wire
> > ties. It's about 1/16th= inch ID, I never measured it. Greatly improved
> > things, on th= e display and I got more RPMs. Then I made 2 accumulators
> > usi= ng 2 inches of 1/2 ID tubing, rolled up green scubby pad tightly and
&g= t; > inserted it into the tubing. Went to the hardware store and got 4, = 1/8th
> > inch barbed fittings (brass) x 1/4 MPT and inserted it = into both sides of
> > the tubing, hose clamp it tight and insert= ed it into the vacuum line.
> > Don't
> > remember if b= efore or after the restriction. Even better now. Works
> > great!=
> > Try it! Experiment! I love these cheap, quick hardware store= fixes!
> >
> > Don Walker
> > Flying N113BR =
> >
> > --
> > Homepage: http://www.flyrotary= .com/
> > Archive and UnSub:
> > http://mail.lancaironl= ine.net:81/lists/flyrotary/List.html
> >
> >
> &= gt; --
> > Homepage: http://www.flyrotary.com/
> > Arch= ive and UnSub:
> > http://mail.lancaironline.net:81/lists/flyrota= ry/List.html
> >
>
> --
> Homepage: http://w= ww.flyrotary.com/
> Archive and UnSub: http://mail.lancaironline.net= :81/lists/flyrotary/List.html
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