Return-Path: <13brv3@bellsouth.net> Received: from imf24aec.mail.bellsouth.net ([205.152.59.72] verified) by logan.com (CommuniGate Pro SMTP 4.2b8) with ESMTP id 341879 for flyrotary@lancaironline.net; Sun, 01 Aug 2004 18:06:55 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.72; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf24aec.mail.bellsouth.net (InterMail vM.5.01.06.08 201-253-122-130-108-20031117) with ESMTP id <20040801220625.EBGI1756.imf24aec.mail.bellsouth.net@rd> for ; Sun, 1 Aug 2004 18:06:25 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: EFI Pumps Date: Sun, 1 Aug 2004 17:06:30 -0500 Message-ID: <025c01c47813$cc970ea0$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_025D_01C477E9.E3C106A0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 This is a multi-part message in MIME format. ------=_NextPart_000_025D_01C477E9.E3C106A0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable I decided to keep the hose barbs on the inlet size, since there is no pressure there and go to AN-6 = for the pressure side. Millions of autos are driving on hose barbs on both = sides with no problems. Bulent =20 You're right of course, that millions of cars are working just fine with barbs. Mazda even uses those annoying spring clamps. As much as I hate them though, I have to admit that none were leaking when I threw them = away. =20 As for not worrying so much about the inlet side, I'm not sure I agree. There's quite a bit of potential suction on that fitting, though it shouldn't normally be that great. It's easier to suck air in a loose fitting, than push fuel out, and air bubbles in your fuel lines can make = for an evil problem to diagnose. If I had a pump in my hand that gave me = not option, I might use the barb, but I'd never do it when I had the option = of using an AN fitting. =20 =20 No right or wrong answer, just my personal preference. =20 =20 Cheers, Rusty (OK, so maybe I will do the Airbike...) =20 ------=_NextPart_000_025D_01C477E9.E3C106A0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

I decided to keep the hose
barbs on the inlet size, = since=20 there is no pressure there and go to AN-6 for
the pressure side. = Millions of=20 autos are driving on hose barbs on both sides
with no=20 problems.
Bulent

 
You're = right of course,=20 that millions of cars are working just fine with barbs.  Mazda even = uses=20 those annoying spring clamps.  As much as I hate them though, I = have to=20 admit that none were leaking when I threw them away.  =
 
As for = not worrying so=20 much about the inlet side, I'm not sure I agree.  There's quite a = bit of=20 potential suction on that fitting, though it shouldn't normally be that=20 great.  It's easier to suck air in a loose fitting, than push = fuel=20 out, and air bubbles in your fuel lines can make for an evil problem to=20 diagnose.   If I had a pump in my hand that gave me not = option, I=20 might use the barb, but I'd never do it when I had the option = of using=20 an AN fitting.  
 
No right = or wrong=20 answer, just my personal preference.  
 
Cheers,
Rusty = (OK, so maybe I=20 will do the Airbike...)
   



 ------=_NextPart_000_025D_01C477E9.E3C106A0--