Return-Path: Received: from fed1rmmtao02.cox.net ([68.230.241.37] verified) by logan.com (CommuniGate Pro SMTP 4.2b6) with ESMTP id 230937 for flyrotary@lancaironline.net; Tue, 29 Jun 2004 14:05:05 -0400 Received: from BigAl ([68.107.116.221]) by fed1rmmtao02.cox.net (InterMail vM.6.01.03.02 201-2131-111-104-20040324) with ESMTP id <20040629180436.VTKQ24778.fed1rmmtao02.cox.net@BigAl> for ; Tue, 29 Jun 2004 14:04:36 -0400 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Fuel System Question Date: Tue, 29 Jun 2004 11:04:37 -0700 Message-ID: <000601c45e03$8ab7ca30$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0007_01C45DC8.DE58F230" 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 V6.00.2800.1165 This is a multi-part message in MIME format. ------=_NextPart_000_0007_01C45DC8.DE58F230 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable > I have a related question. > My return fuel goes via a regulator and a solenoid to the proper tank. = The > system has been running at about 42PSI and the adjustment screw on the > regulator is locked. Yesterday on a ground run I noticed that the fuel > pressure was almost 50 PSI. This was the first time I'd run with the = tanks > almost full. I'm thinking that the return line is below the fuel level = for > the first time. Could that cause an 8 PSI increase in pressure or = should I > be looking for something else? >=20 > John Slade (coming back in from the cold) >=20 John; =20 Look for something else. Whether the return is above or below the = surface shouldn't make any noticeable difference. 8 psi pressure is equivalent = to a vertical head of fuel of about 27 ft. =20 Al ------=_NextPart_000_0007_01C45DC8.DE58F230 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

> I have a related question.

> My return fuel goes via a regulator and a solenoid to the proper tank. = The

> system has been running at about 42PSI and the adjustment screw on = the

> regulator is locked. Yesterday on a ground run I noticed that the = fuel

> pressure was almost 50 PSI. This was the first time I'd run with the = tanks

> almost full. I'm thinking that the return line is below the fuel level = for

> the first time. Could that cause an 8 PSI increase in pressure or should = I

> be looking for something else?

>

> John Slade (coming back in from the cold)

>

John;

 <= /font>

Look for = something else.  Whether the return is above or below the surface shouldn't make any = noticeable difference.  8 psi pressure is equivalent to a vertical head of fuel of about 27 = ft.

 <= /font>

Al

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