X-Virus-Scanned: clean according to Sophos on Logan.com From: "Steven W. Boese" Received: from [104.47.37.114] (HELO NAM02-CY1-obe.outbound.protection.outlook.com) by logan.com (CommuniGate Pro SMTP 6.2c1) with ESMTPS id 9581536 for flyrotary@lancaironline.net; Fri, 17 Mar 2017 19:35:07 -0400 Received-SPF: none receiver=logan.com; client-ip=104.47.37.114; envelope-from=SBoese@uwyo.edu DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=uwy.onmicrosoft.com; s=selector1-uwyo-edu; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=NziGCNwIWwl+iyOmVrv6NFE32P0WZgR74eVTPYaSpZs=; b=b0G5Fg6Ce0NaBWvAYLXk2EPWmToMfnxKlBcKUUXT9soCWSonR5uo0fw+2tbY8lAmog6lGgbEydn52LLg0eWFpEOwnwNBTAnE5pXzIWJI3S9xcDAbVPxQadhqs4rue+7y4Rto36YfjTQglvHncZahn8d37tplQ9OpN4nbC1tmODo= Received: from CO2PR0501MB903.namprd05.prod.outlook.com (10.141.247.18) by CO2PR0501MB903.namprd05.prod.outlook.com (10.141.247.18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.947.2; Fri, 17 Mar 2017 23:34:49 +0000 Received: from CO2PR0501MB903.namprd05.prod.outlook.com ([10.141.247.18]) by CO2PR0501MB903.namprd05.prod.outlook.com ([10.141.247.18]) with mapi id 15.01.0947.025; Fri, 17 Mar 2017 23:34:49 +0000 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Fuel Pump and Regulator Thread-Topic: [FlyRotary] Re: Fuel Pump and Regulator Thread-Index: AQHSn138of9xeQoi0k+/Lj3rnb6hJaGZrt4j Date: Fri, 17 Mar 2017 23:34:49 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: lancaironline.net; dkim=none (message not signed) header.d=none;lancaironline.net; dmarc=none action=none header.from=uwyo.edu; x-originating-ip: [69.146.90.23] x-ms-office365-filtering-correlation-id: 98193700-f160-4b18-11fe-08d46d8e3436 x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(22001)(2017030254055);SRVR:CO2PR0501MB903; x-microsoft-exchange-diagnostics: 1;CO2PR0501MB903;7:7BacULBNkFWRiok7nVtnQtz0DxV5SkJvcvPhsKti2uSjoY1GxK+b94HoegleE7S53MunwF6kZGJhKNBovfW2OOXFlKR2QRNSx9HBiG+mQaDoEt/CxfjyFtBreIu+1HnD+rKCaLhyXccTX6P/KtqzmHJlYZnZ/xledlUBHR74rVnOyShvlwdH6RTQ9RTR4rYXWE3+yS1PfB1pHjQ3WakCkvCd3RyYyDWbz7y9a1IgrEnAzI+20ZDGLRjGO0FxdNpqd+wbsz8BrZKjB/h3aLjgJaE8Y95YkTX9V9HQGCd5NnFzjzbL9rAG1SSGAm/6DUVYN3EZdEobXwU4Ys9PWUP1ZA== x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:; x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(6040375)(601004)(2401047)(8121501046)(5005006)(10201501046)(3002001)(6041248)(20161123562025)(20161123564025)(20161123555025)(20161123560025)(20161123558025)(6072148);SRVR:CO2PR0501MB903;BCL:0;PCL:0;RULEID:;SRVR:CO2PR0501MB903; x-forefront-prvs: 0249EFCB0B x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(39450400003)(279900001)(377454003)(24454002)(85664002)(229853002)(2900100001)(8936002)(54356999)(50986999)(76176999)(8676002)(189998001)(66066001)(236005)(19627405001)(9686003)(86362001)(54896002)(19625305001)(6306002)(6116002)(33656002)(3846002)(102836003)(81166006)(77096006)(6246003)(7906003)(606005)(6436002)(122556002)(6506006)(74316002)(2950100002)(6916009)(53936002)(75432002)(88552002)(3280700002)(7736002)(3660700001)(7696004)(5660300001)(55016002)(25786008)(110136004)(966004)(2906002)(53546008)(99286003)(38730400002)(16297215004);DIR:OUT;SFP:1102;SCL:1;SRVR:CO2PR0501MB903;H:CO2PR0501MB903.namprd05.prod.outlook.com;FPR:;SPF:None;MLV:sfv;LANG:en; spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: multipart/alternative; boundary="_000_CO2PR0501MB90312CDA74C388FB75322DBB9390CO2PR0501MB903na_" MIME-Version: 1.0 X-OriginatorOrg: uwyo.edu X-MS-Exchange-CrossTenant-originalarrivaltime: 17 Mar 2017 23:34:49.2853 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: f9cdd7ad-825d-4601-8e9c-a325e02d52da X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO2PR0501MB903 --_000_CO2PR0501MB90312CDA74C388FB75322DBB9390CO2PR0501MB903na_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Charlie, I checked the boxes that the pumps came in and the number is 2P74028. I missed the "7". Hopefully that is a good number yet. Steve ________________________________ From: Rotary motors in aircraft on behalf of = Charlie England Sent: Friday, March 17, 2017 2:34:14 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Fuel Pump and Regulator Hey Steve, not to hijack the thread, but which pump is that? I can't find t= hat # on the NAPA web site. Thanks, Charlie On Fri, Mar 17, 2017 at 12:34 PM, Steven W. Boese > wrote: Steve, I used a stock Mazda 1986 fuel pressure regulator, two NAPA 2P4028 fuel pum= ps in parallel, and an Andair duplex fuel selector valve. The fuel lines ar= e -6 (3/8") except that the fuel return to one of the tanks has an addition= al 3 ft of -4 (1/4") aluminum tubing. The fuel pumps each move 47 gal/hr a= gainst a 7 psi head. The fuel pressure in the rail is 38 psi when either pump is running. The c= urrent draw from either pump is 6 amps. When both pumps are running, the fuel pressure in the rail is 39.1 psi when= the tank without the additional 1/4" return tubing is selected and 39.6 ps= i when the tank with the additional 1/4" return tubing is selected. The cu= rrent draw from both pumps is 12 amps. Since with my setup running both pumps only increases the pressure by about= 1 psi, and the 3 ft of 1/4" tubing only adds about 0.5 psi of back pressur= e with both pumps running, it might be worth checking for a restriction som= ewhere in your system. Steve Boese ________________________________ From: Rotary motors in aircraft > on behalf of steve Izett > Sent: Friday, March 17, 2017 3:44:46 AM To: Rotary motors in aircraft Subject: [FlyRotary] Fuel Pump and Regulator Hi Guys I fired up my secondary fuel pump for the first time today and was met wit= h what I didn=92t expect. Instead of seeing a blip in the fuel pressure, I had a 10psi increase and h= igh current draw from the pump which blew its 10amp fuse. I=92ll up the fuse as its too low me thinks. I used an old fuel regulator I had on a rail. It was of a Toyota 4AGE engin= e of about 135hp. Seems like its not able to bypass enough fuel with both pumps running. I think I need to install a higher power adjustable regulator. What experience do you guys have with turning both pumps on simultaneously? I=92m putting a pressure switch in the circuit to turn on the backup pump i= f the fuel pressure drops below a preset level. Appreciate your thoughts and experience. Steve Izett Genesis 4 port EC3 EM3 RD1C in a Glasair Super II RG still nearly finished! -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.= html --_000_CO2PR0501MB90312CDA74C388FB75322DBB9390CO2PR0501MB903na_ Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable

Charlie,


I checked the boxes that the pumps came in and the number is 2P74028.


I missed the "7".  Hopefully that is a good number yet.


Steve

From: Rotary motors in airc= raft <flyrotary@lancaironline.net> on behalf of Charlie England <f= lyrotary@lancaironline.net>
Sent: Friday, March 17, 2017 2:34:14 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Fuel Pump and Regulator
 
Hey Steve, not to hijack the thread, but which pump is tha= t? I can't find that # on the NAPA web site.

Thanks,

Charlie

On Fri, Mar 17, 2017 at 12:34 PM, Steven W. Boes= e <flyrot= ary@lancaironline.net> wrote:

Steve,


I used a stock Mazda 1986 fuel pressure regulator, two NAPA 2P4028 fuel = pumps in parallel, and an Andair duplex fuel selector valve. The fuel lines= are -6 (3/8") except that the fuel return to one of the tanks has an = additional 3 ft of -4 (1/4") aluminum tubing.  The fuel pumps each move 47 gal/hr against a 7 psi head.


The fuel pressure in the rail is 38 psi when either pump is running.&nbs= p; The current draw from either pump is 6 amps.


When both pumps are running, the fuel pressure in the rail is 39.1 psi w= hen the tank without the additional 1/4" return tubing is selected and= 39.6 psi when the tank with the additional 1/4" return tubing is sele= cted.  The current draw from both pumps is 12 amps.


Since with my setup running both pumps only increases the pressure by ab= out 1 psi, and the 3 ft of 1/4" tubing only adds about 0.5 psi of back= pressure with both pumps running, it might be worth checking for a restric= tion somewhere in your system.


Steve Boese


From: Rotary motors in aircraft <flyrotary@lancaironline.net> on behalf of steve Izett <flyrotary@lancaironline.net>
Sent: Friday, March 17, 2017 3:44:46 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Fuel Pump and Regulator
 
Hi Guys

I fired up my secondary fuel pump for  the first time today and was me= t with what I didn=92t expect.
Instead of seeing a blip in the fuel pressure, I had a 10psi increase and h= igh current draw from the pump which blew its 10amp fuse.
I=92ll up the fuse as its too low me thinks.

I used an old fuel regulator I had on a rail. It was of a Toyota 4AGE engin= e of about 135hp.
Seems like its not able to bypass enough fuel with both pumps running.

I think I need to install a higher power adjustable regulator.
What experience do you guys have with turning both pumps on simultaneously?=

I=92m putting a pressure switch in the circuit to turn on the backup pump i= f the fuel pressure drops below a preset level.

Appreciate your thoughts and experience.

Steve Izett
Genesis 4 port EC3 EM3 RD1C in a Glasair Super II RG still nearly finished!=
--
Homepage:  htt= p://www.flyrotary.com/
Archive and UnSub:   http://mail.lancaironline.net:81/lists/flyrotary/List.html

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