X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imr-mb02.mx.aol.com ([64.12.207.163] verified) by logan.com (CommuniGate Pro SMTP 5.4.1) with ESMTP id 5093799 for flyrotary@lancaironline.net; Tue, 16 Aug 2011 09:53:56 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.207.163; envelope-from=lehanover@aol.com Received: from mtaomg-db03.r1000.mx.aol.com (mtaomg-db03.r1000.mx.aol.com [172.29.51.201]) by imr-mb02.mx.aol.com (8.14.1/8.14.1) with ESMTP id p7GDrCfw007461 for ; Tue, 16 Aug 2011 09:53:12 -0400 Received: from core-moa002b.r1000.mail.aol.com (core-moa002.r1000.mail.aol.com [172.29.233.5]) by mtaomg-db03.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id B91B3E000094 for ; Tue, 16 Aug 2011 09:53:11 -0400 (EDT) References: To: flyrotary@lancaironline.net Subject: Re: [FlyRotary] Re: Dennis Haverlah Fuel System...or any others, for that matter. X-AOL-IP: 24.253.65.97 In-Reply-To: X-MB-Message-Source: WebUI MIME-Version: 1.0 From: lehanover@aol.com X-MB-Message-Type: User Content-Type: multipart/alternative; boundary="--------MB_8CE2A32F8B67A68_684_757D_webmail-m029.sysops.aol.com" X-Mailer: AOL Webmail 34047-STANDARD Received: from 24.253.65.97 by webmail-m029.sysops.aol.com (64.12.101.212) with HTTP (WebMailUI); Tue, 16 Aug 2011 09:53:11 -0400 Message-Id: <8CE2A32F8A83222-684-268D@webmail-m029.sysops.aol.com> X-Originating-IP: [24.253.65.97] Date: Tue, 16 Aug 2011 09:53:11 -0400 (EDT) x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:446611840:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d33c94e4a76470ca7 This is a multi-part message in MIME format. ----------MB_8CE2A32F8B67A68_684_757D_webmail-m029.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="us-ascii" A logical cure for a common problem. Well done. Lynn E. Hanover BTW, what made me decide to do this was some reading I was doing on the = forums. The chamber in the base that holds the pressurized fuel also ha= s an 1/8"NPT outlet meant for a fuel pressure gauge. I was considering = using this for the pressure bleed connection. Some of the hot-rodders w= ere complaining about how the Aeromotive regulators weren't holding pres= sure after the fuel pumps were shut down. They traced their woes to poo= r machining of the steel ball's seat on the base's post. =20 Their spending time and energy to clean up the machining to make a p= erfect seal, so I went out and destroyed some beautiful machine work to = make a terrible seal. Go figure. -----Original Message----- From: Ernest Christley To: Rotary motors in aircraft Sent: Sun, Aug 14, 2011 6:38 pm Subject: [FlyRotary] Re: Dennis Haverlah Fuel System...or any others, for t= hat matter. On 08/15/2011 01:27 AM, Ernest Christley wrote: =20 =20 I removed the 4 screws, wrapped up the base in some shop rags, l= eaving just the top of the post exposed, then used a cut-off wheel in = my Dremel to make a deep scratch in the steel ball's seat on the top o= f the post. =20 I put it all back together, tested that the pumps made 60psi, re= gulated it back down to 50, then watched the pressure bleed off in abo= ut 5 seconds after I switched the pumps off. Then I went in the house= to recover from the gas fumes. =20 This method doesn't add any weight, connections or extra hose, but = is 100% effective at relieving the fuel line pressure on shutdown. =20 =20 BTW, what made me decide to do this was some reading I was doing on = the forums. The chamber in the base that holds the pressurized fuel als= o has an 1/8"NPT outlet meant for a fuel pressure gauge. I was consider= ing using this for the pressure bleed connection. Some of the hot-rodde= rs were complaining about how the Aeromotive regulators weren't holding = pressure after the fuel pumps were shut down. They traced their woes to= poor machining of the steel ball's seat on the base's post. =20 Their spending time and energy to clean up the machining to make a p= erfect seal, so I went out and destroyed some beautiful machine work to = make a terrible seal. Go figure. =20 =20 =20 ----------MB_8CE2A32F8B67A68_684_757D_webmail-m029.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="us-ascii" A logical cure for a common= problem. Well done.

Lynn E. Hanover
BTW, what = made me decide to do this was some reading I was doing on the forums.  The chamber in the base that holds the pressurized fu= el also has an 1/8"NPT outlet meant for a fuel pressure gauge.  I was considering using this for the pressure bleed connection.  Some of the hot-rodders were complaining about how the Aeromotive regulators weren't holding pressure after the fuel pumps were shut down.  The= y traced their woes to poor machining of the steel ball's seat on the base's post.

Their spending time and energy to clean up the machining to make a perfect seal, so I went out and destroyed some beautiful machine work to make a terrible seal.  Go figure.




-----= Original Message-----
From: Ernest Christley <echristley@att.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Sun, Aug 14, 2011 6:38 pm
Subject: [FlyRotary] Re: Dennis Haverlah Fuel System...or any others, for t= hat matter.

=20 =20 =20 =20 On 08/15/2011 01:27 AM, Ernest Christley wrote:
=20 =20
I removed the 4 screws, wrapped up the base in some shop rags, leaving just the top of the post exposed, then used a cut-off wheel in my Dremel to make a deep scratch in the steel ball's seat on the top of the post.

I put it all back together, tested that the pumps made 60psi, regulated it back down to 50, then watched the pressure bleed off in about 5 seconds after I switched the pumps off.  Then I went = in the house to recover from the gas fumes.

This method doesn't add any weight, connections or extra hose, but is 100% effective at relieving the fuel line pressure on shutdown.
BTW, what made me decide to do this was some reading I was doing on the forums.  The chamber in the base that holds the pressurized fu= el also has an 1/8"NPT outlet meant for a fuel pressure gauge.  I was considering using this for the pressure bleed connection.  Some of the hot-rodders were complaining about how the Aeromotive regulators weren't holding pressure after the fuel pumps were shut down.  The= y traced their woes to poor machining of the steel ball's seat on the base's post.

Their spending time and energy to clean up the machining to make a perfect seal, so I went out and destroyed some beautiful machine work to make a terrible seal.  Go figure.

=20
----------MB_8CE2A32F8B67A68_684_757D_webmail-m029.sysops.aol.com--