X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.121] verified) by logan.com (CommuniGate Pro SMTP 5.1.12) with ESMTP id 2322130 for flyrotary@lancaironline.net; Mon, 10 Sep 2007 07:49:31 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.121; envelope-from=eanderson@carolina.rr.com Received: from edward2 ([24.74.103.61]) by cdptpa-omta02.mail.rr.com with SMTP id <20070910114853.LLRI3965.cdptpa-omta02.mail.rr.com@edward2> for ; Mon, 10 Sep 2007 11:48:53 +0000 Message-ID: <001801c7f3a0$a5a66190$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: need help Date: Mon, 10 Sep 2007 07:49:29 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0015_01C7F37F.1E64FF00" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 This is a multi-part message in MIME format. ------=_NextPart_000_0015_01C7F37F.1E64FF00 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Forgot to address your Plexiglas question. My personal bias is not to = have anything carrying fuel but fuel lines made for it. I particularly = do not like the ideal of glass or plastic view ports - but again, that = is just my personal bias, I know that there are a number of systems = which do use such view sights. FWIW Ed ----- Original Message -----=20 From: Wendell Voto=20 To: Rotary motors in aircraft=20 Sent: Sunday, September 09, 2007 9:44 PM Subject: [FlyRotary] Re: need help Ed,=20 You stated that you use Facet pumps, I suppose these are before the = in-line filter. My concern about using the filters before the efi fuel = pump is that there would be more flow restriction. Since I will be using = gravity fed sump tank (5-6 inch elevation difference and I don't want to = pressurize the sump tank), that vaporization could occur; hence I am = still thinking of a large surface screen in the sump tank (already have = screen wire over the strake tank outlets) to catch small stuff that = could shorten pump life, not necessarily plug up the pump. MSD claims to = be able to handle small particles better than the competition. Thinking = also of putting in a sight glass (Plexiglas) to observe tank behavior = and screen condition. Can Plexiglas hold up to auto gas? Oh yes, the sump tank will have a water catch sub-sump. Wendell (hope I'm making sense) I have opened up my coarse filter 6 times in 10 years. First time = had some small fragments of sealant used to close the tank. The next 5 = times nothing. Of course, a lot will depend on type of tank and quality = of fuel going into the tanks. I replace the EFI filters at each conditional inspection, cut the = old ones open and have never found anything in them either. But, I do = use 100LL aircraft quality gasoline - almost exclusively.. ED ----- Original Message -----=20 From: Wendell Voto=20 To: Rotary motors in aircraft=20 Sent: Sunday, September 09, 2007 4:00 PM Subject: [FlyRotary] Re: need help Thanks Ed, How often do you have to clean the filter? Wendell I have a fine wire mesh filter in an aluminum housing with An-6 = fittings on each end just before the fuel enters my header tank.. You = can unscrew one end to clean the mesh. However, been too long ago and I = find I never logged the part number on my fuel data sheet. But, here are the specific part numbers I use for the EFI = filters Fuel Filters: OEM Auto Fuel Injector Fuel Filters (Two in = Parallel) Type: AC GF - 481 Pkg: 25056052 OEM:25055129 (or equivalent) Fittings: 3/8 Saginaw to AN6 Adapter, "O" ring required Ed ----- Original Message -----=20 From: Wendell Voto=20 To: Rotary motors in aircraft=20 Sent: Saturday, September 08, 2007 10:18 PM Subject: [FlyRotary] Re: need help Thanks Rob and Ed for the replys on the MSD fuel pumps.=20 Now; what kind of filter do you have ahead of the pump? = I'm thinking of using some fine mesh screen to make a filter inside the = sump tank. It will be hard to service but believe that one will prolong = pump life and possibly. stop a particle that could interupt fuel flow. = What size mesh is recommended? =20 Wendell =20 I have been using the MSD 2225 for about 20 hour with no = problem so far. Plenty of fuel pressure. Only problem is that it is not = threaded so I had to use the barbed nipples that come with the pump. How = bad can that be? Robert Bollinger FM1099 MUM Fairfield IA 52557 (641)472-7000 ex2068 (641)919-3213 cell rob@mum.edu ------=_NextPart_000_0015_01C7F37F.1E64FF00 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Forgot to address your Plexiglas question.  = My=20 personal bias is not to have anything carrying fuel but fuel lines made = for=20 it.  I particularly do not like the ideal of glass or plastic view = ports -=20 but again, that is just my personal bias, I know that there are a number = of=20 systems which do use such view sights.
 
FWIW
 
Ed
----- Original Message -----
From:=20 Wendell = Voto=20
Sent: Sunday, September 09, = 2007 9:44=20 PM
Subject: [FlyRotary] Re: need = help

 

Ed,

You stated that you use Facet pumps, I suppose these = are=20 before the in-line filter. My concern about using the filters before = the efi=20 fuel pump is that there would be more flow restriction. Since I will = be using=20 gravity fed sump tank (5-6 inch elevation difference and I don't want = to=20 pressurize the sump tank), that vaporization could occur; hence I am = still=20 thinking of a large surface screen in the sump tank (already have = screen wire=20 over the strake tank outlets) to catch small stuff that could shorten = pump=20 life, not necessarily plug up the pump. MSD claims to be able to = handle small=20 particles better than the competition. Thinking also of putting in a = sight=20 glass (Plexiglas) to observe tank behavior and screen condition. Can = Plexiglas=20 hold up to auto gas?
Oh yes, the sump tank will have = a water=20 catch sub-sump.

Wendell (hope I'm making sense)

I have opened up my coarse filter 6 times in = 10=20 years.  First time had some small fragments of sealant used to = close=20 the tank.  The next 5 times nothing.  Of course, a lot = will depend=20 on type of tank and quality of fuel going into the = tanks.
 
I replace the EFI filters at each = conditional=20 inspection, cut the old ones open and have never found anything in = them=20 either.  But, I do use 100LL aircraft quality gasoline - almost = exclusively..
 
ED
----- Original Message ----- =
From:=20 Wendell=20 Voto
To: Rotary motors in = aircraft=20
Sent: Sunday, September 09, = 2007 4:00=20 PM
Subject: [FlyRotary] Re: = need=20 help

Thanks Ed,
 
How often do you have to clean the=20 filter?
 
Wendell
 

I have a fine wire mesh filter in an = aluminum=20 housing with An-6 fittings on each end just before the fuel = enters my=20 header tank..  You can unscrew one end to clean the = mesh. =20 However, been too long ago and I find I never logged the part = number on=20 my fuel data sheet.
 
But, here are the specific part numbers = I use for=20 the EFI filters
 

Fuel Filters: OEM Auto Fuel Injector Fuel Filters (Two in = Parallel)

Type: AC GF - 481 Pkg: 25056052 OEM:25055129 (or=20 equivalent)

Fittings: 3/8 Saginaw to AN6 Adapter, "O" ring = required

 

Ed

----- Original Message ----- =
From:=20 Wendell=20 Voto
To: Rotary motors in=20 aircraft
Sent: Saturday, = September 08,=20 2007 10:18 PM
Subject: [FlyRotary] = Re: need=20 help

 
Thanks Rob and Ed for the replys = on the MSD=20 fuel pumps.
 
Now;  what kind of filter do = you have=20 ahead of the pump?  I'm thinking of using some fine = mesh screen=20 to make a filter inside the sump tank.  It will be hard = to=20 service but believe that one will prolong pump life and = possibly.=20 stop a particle that could interupt fuel flow.  What = size mesh=20 is recommended?  
 
Wendell

 
I have been using the MSD = 2225 for=20 about 20 hour with no problem so far. Plenty of fuel = pressure. Only=20 problem is that it is not threaded so I had to use the = barbed=20 nipples that come with the pump. How bad can that = be?
 
Robert Bollinger
FM1099=20 MUM
Fairfield IA 52557
(641)472-7000 = ex2068
(641)919-3213=20 cell
rob@mum.edu
 
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