X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.2 cv=JJZ5iICb c=1 sm=1 tr=0 a=HH0ipIJV0CKSdCtnAIgCMg==:117 a=x7bEGLp0ZPQA:10 a=A-0mRrAPPO4A:10 a=sC3jslCIGhcA:10 a=pGLkceISAAAA:8 a=Ia-xEzejAAAA:8 a=_6GpL_ENAAAA:8 a=IK5bnQDPae9gFNtu-7wA:9 a=QEXdDO2ut3YA:10 a=l7zNIm2u75Q9fioaWbQA:9 a=Oai-6ZrPWD7q71bm:21 a=Urk15JJjZg1Xo0ryW_k8:22 From: "Charlie England ceengland7@gmail.com" Received: from mail-pf0-f169.google.com ([209.85.192.169] verified) by logan.com (CommuniGate Pro SMTP 6.2c5) with ESMTPS id 10329332 for flyrotary@lancaironline.net; Fri, 17 Nov 2017 17:59:18 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.192.169; envelope-from=ceengland7@gmail.com Received: by mail-pf0-f169.google.com with SMTP id q4so2944002pfg.13 for ; Fri, 17 Nov 2017 14:59:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=pUiGOyiil0jz7brNqMyFl82H/WT9wV2SnFHjS4ICQVs=; b=A+AFYs6+EvIFYIhawS7Bj4xZswN3CSKeBh8oYk+fC6RKkZ3ogDn8d3CdwKa3zxC+9R HNf8lt+ek1Ww+IFNXOnRI9Tv/oO8w+PjIkIABlQIPx0+JRa5WyFXclqAOkL4uYoUHQnO nOQ247OMP50DCaEoP8AIxynrlVGmqTj4YS7nkO37jofStiQMbWTvY5MNyFFU8CEGSYBS 7rpuVVpU09I5tD3wyoAXyQ7QK+FRwXBP36XYr+bmaVJMP9CfiP/t2u998xOPkhmTuDJL nJDmDTtzJbCPXMisGWyeb365E6SNDOkudceYZhlIPCRKuiMtOTbrKXC5kVKtvUoAqghS 58YQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=pUiGOyiil0jz7brNqMyFl82H/WT9wV2SnFHjS4ICQVs=; b=K1tbIkKzmu2NmwA8SBzvqCg5iQkiFsUg0SzIshrqMTpQ3TAObBQIRBscj+SEfhwZa3 A3lWCsVYNojbZUc6bxh+sPU6wFWxxSsKSG9pRFUnACsi4NrsYIFeHb/6sSpGp7fItNuz SqeP7QzLo2/M4BOqUoih5XPp1p1rAIzArWThJphKAKeob7EsKosA2LFvKHqNcM8Xx8bC TmtNN88rT4QbHAAjhoydYf40TGhnTzp4Hm7wSCaGP3Qi3AP26O8vggHOB9ZBdUR99ykG Ve24TWJ5aLdUY7podySvSiKdkG/5y1FqP8o4sQtS2AdFyDJcvZpLYiVE8K+qv5Xk4Tb/ YgfQ== X-Gm-Message-State: AJaThX6j6gGA4F0QQUPfanKA5k9wFn5Wqn49KDcqFbW9ytYwE8srHcQt zXn4oIxN/lRS+KT5eRelZYIJppK5tuQwuW67mfo= X-Google-Smtp-Source: AGs4zMZmoz6Wh0AEsxfilAOFBMlpAAhI+IcCnZ96zzDF+HSYqTpzV6wjPs6s2BC1NiRBwY4Nh6KqXpxjUV0prbG4JVU= X-Received: by 10.99.38.129 with SMTP id m123mr6435395pgm.53.1510959540427; Fri, 17 Nov 2017 14:59:00 -0800 (PST) MIME-Version: 1.0 Received: by 10.100.227.70 with HTTP; Fri, 17 Nov 2017 14:58:59 -0800 (PST) In-Reply-To: References: Date: Fri, 17 Nov 2017 16:58:59 -0600 Message-ID: Subject: Re: [FlyRotary] Re: pre-filter for injection pump? To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="94eb2c0679e0ad5fe2055e35ae12" --94eb2c0679e0ad5fe2055e35ae12 Content-Type: text/plain; charset="UTF-8" You shouldn't have any issues at all on an O-200. I'm running one (after the fuel pump, to protect a fuel flow sensor) on an O-320 in my RV-4. No way would I run it after a Walbro, @ 40+ psi, but at 3-6 psi, it works fine. I'm mainly concerned about the Walbro sucking ~40 gph through it, & whether it could induce vapor lock on the pump input. Guess I'll have to set up a test rig, to measure pressure drop. On Fri, Nov 17, 2017 at 4:39 PM, Ron Springer ron228rj@gmail.com < flyrotary@lancaironline.net> wrote: > Hi Charlie, > > No, I have not run it yet and have not done any gravity flow tests yet. I > am just copying another person's fuel system plumbing for the same > plane/engine, so I think it should work. This is not for a rotary > installation. It is for a VariEze with an O-200 a gravity feed fuel system. > Full throttle fuel consumption is only 6 gph. > > Ron > > On Fri, Nov 17, 2017 at 10:06 AM, Charlie England ceengland7@gmail.com < > flyrotary@lancaironline.net> wrote: > >> Hey Ron, are you running yours yet? I just did a quick & dirty gravity >> flow test on mine, & I'm getting around 35 seconds to flow 16 ounces. If my >> math's right, that's only about 13 gal/hr, & the Walbros will be pulling 3 >> or 4 times that flow. Now I'm wondering how much pressure drop will show up >> between the filter & the Walbro. >> >> On Sun, Nov 12, 2017 at 2:23 PM, Charlie England ceengland7@gmail.com < >> flyrotary@lancaironline.net> wrote: >> >>> Excellent idea. I think I can work with that, so I may just use the >>> glass filter. At least there's a chance I can place it so it's in view when >>> I get in the plane. That should help avoid the risk of it getting >>> completely clogged before I detect it. >>> >>> Charlie >>> >>> On 11/12/2017 1:31 PM, Ron Springer ron228rj@gmail.com wrote: >>> >>> Charlie, >>> >>> I put safety wire on my glass filter joining the two end caps. It >>> doesn't prevent them from turning but it prevents them from getting further >>> apart, which would eventually stop them from turning. >>> >>> Ron >>> >>> On Nov 12, 2017 10:46 AM, "Charlie England ceengland7@gmail.com" < >>> flyrotary@lancaironline.net> wrote: >>> >>> Thanks Bill, but I wouldn't just have to come out of retirement; I'd >>> need another whole career. :-) >>> >>> With an RV, the lowest points in the fuel system are the sumps on the >>> tanks, so water separation would be redundant. And I just can't make myself >>> pay $200-$400 for a fuel filter. >>> >>> My biggest misgivings about the little $10 glass body filters are the >>> somewhat limited filter area (but still better than some of the 'racing' >>> filters that have a little 3/8" disc), and the fact that they screw >>> together with no easy way to safety them from unscrewing. The latter is >>> more paranoia than a real issue; I've been running one for years on the Lyc >>> with no issues. One thing I do like is the ability to actually see any >>> trash accumulation. >>> >>> Thanks, >>> >>> Charlie >>> >>> >>> On 11/12/2017 9:30 AM, Bill Schertz wschertz343@gmail.com wrote: >>> >>> I used an Andair gascolator. >>> >>> *From:* mailto:flyrotary@lancaironline.net >>> *Sent:* Sunday, November 12, 2017 7:59 AM >>> *To:* Rotary motors in aircraft >>> *Subject:* [FlyRotary] pre-filter for injection pump? >>> >>> What's being used for the ~100 micron pre-filter feeding your Walbros? >>> I'm running one of those glass body cylindrical models on my Lyc powered >>> RV, and it's been fine, but I'm open to better options as long as I don't >>> have to come out of retirement to afford them. >>> >>> Thanks, >>> >>> Charlie >>> >>> >>> >>> >>> Virus-free. >>> www.avast.com >>> >>> <#m_5019533498141381991_m_8096351988129593919_m_-4025553352706730185_m_2068330052327766258_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> >>> >>> >>> >>> >> > --94eb2c0679e0ad5fe2055e35ae12 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
You shouldn't have any issues at all on an O-200. I= 9;m running one (after the fuel pump, to protect a fuel flow sensor) on an = O-320 in my RV-4.=C2=A0

No way would I run it after a Wa= lbro, @ 40+ psi, but at 3-6 psi, it works fine. I'm mainly concerned ab= out the Walbro sucking ~40 gph through it, & whether it could induce va= por lock on the pump input. Guess I'll have to set up a test rig, to me= asure pressure drop.

On Fri, Nov 17, 2017 at 4:39 PM, Ron Springer ron228rj@gmail.com <flyrotary@lanc= aironline.net> wrote:
Hi Charlie,

No, I have not run it yet an= d have not done any gravity flow tests yet. I am just copying another perso= n's fuel system plumbing for the same plane/engine, so I think it shoul= d work. This is not for a rotary installation. It is for a VariEze with an = O-200 a gravity feed fuel system. Full throttle fuel consumption is only 6 = gph.

Ron

On Fri, Nov 17, 2017 at 10:06 AM, Charlie England ceengland7@gmail.co= m <flyrotary@lancaironline.net> wrote:
Hey Ron, are you running yours = yet? I just did a quick & dirty gravity flow test on mine, & I'= m getting around 35 seconds to flow 16 ounces. If my math's right, that= 's only about 13 gal/hr, & the Walbros will be pulling 3 or 4 times= that flow. Now I'm wondering how much pressure drop will show up betwe= en the filter & the Walbro.

On Sun, Nov 12, 2017 at 2:23 PM, Charlie England ceengland7@gmail.com= <flyrotary@lancaironline.net> wrote:
=20 =20 =20
Excellent idea. I think I can work with that, so I may just use the glass filter. At least there's a chance I can place it so it's in view when I get in the plane. That should help avoid the risk of it getting completely clogged before I detect it.

Charlie

On 11/12/2017 1:31 PM, Ron Springer ron228rj@gmail.com wro= te:
Charlie,

I put safety wire on my glass filter joining the two end caps. It doesn't prevent them from turning but it prevents them from getting further apart, which would eventually stop them from turning.=C2=A0

Ron

On Nov 12, 2017 10:46 AM, "Char= lie England ceengland7@gmail.com" <flyrotary@lancaironline.net> wrote:
Thanks Bill, but I wouldn't just have to come out of retirement; I'd need another whole career. :-)

With an RV, the lowest points in the fuel system are the sumps on the tanks, so water separation would be redundant. And I just can't make myself pay $200-$400 for a fuel filter.

My biggest misgivings about the little $10 glass body filters are the somewhat limited filter area (but still better than some of the 'racing' fil= ters that have a little 3/8" disc), and the fact that they screw together with no easy way to safety them from unscrewing. The latter is more paranoia than a real issue; I've been running one for years on the Lyc with no issues. One thing I do like is the ability to actually see any trash accumulation.

Thanks,

Charlie


On 11/12/2017 9:30 AM, Bill Schertz wschertz343@gmail.com wrote:
I used an Andair gascolator.
=C2=A0
Sent: Sunday, November 12, 2017 7:59 AM
Subject: [FlyRotary] pre-filter for injection pump?
=C2=A0
What's being used for the ~100 micron pre-filter feeding your Walbros? I'm running one of those glass body cylindrical models on my Lyc powered RV, and it's been fine, but I'm open = to better options as long as I don't have to come out of retirement to afford them.
=C2=A0
Thanks,
=C2=A0
Charlie

3D"" Virus-free. www.avast.com





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