X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from zproxy.gmail.com ([64.233.162.199] verified) by logan.com (CommuniGate Pro SMTP 4.3.4) with ESMTP id 989620 for flyrotary@lancaironline.net; Thu, 09 Jun 2005 00:52:53 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.233.162.199; envelope-from=wdleonard@gmail.com Received: by zproxy.gmail.com with SMTP id 34so452010nzf for ; Wed, 08 Jun 2005 21:52:08 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:in-reply-to:mime-version:content-type:references; b=WfkTWEa6CMQ+YBRDYSddobjqTSb43cZrGvBNiWKPjFn59WplJMAmfyK96ij+S7FBnGy0YxviKO3TpNs0pOPugU814nZWkQwBIK/Xna422mloLgoXmC/UJjlmTa0Tx7UChnb3n1lfp6RXYoZ/qan0NlHcBRrl5HjrLa/3sEj4jbc= Received: by 10.36.60.18 with SMTP id i18mr152393nza; Wed, 08 Jun 2005 21:52:08 -0700 (PDT) Received: by 10.36.9.4 with HTTP; Wed, 8 Jun 2005 21:52:08 -0700 (PDT) Message-ID: <1c23473f0506082152dd414c@mail.gmail.com> Date: Wed, 8 Jun 2005 21:52:08 -0700 From: David Leonard Reply-To: David Leonard To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Very strange problem after installing new turbo In-Reply-To: Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_122_4210885.1118292728151" References: ------=_Part_122_4210885.1118292728151 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On 6/8/05, Ian Dewhirst wrote:=20 >=20 > Hi David,=20 > Are you using a fuel pressure regulator that regulates fuel pressure=20 > relative to manifold pressure? Tou would have a hose from the FPR to the= =20 > manifold. Your fuel pressure indicated should rise at the same rate that= =20 > boost pressure rises. If your normal fuel pressure is 40 psi it should be= 50=20 > psi at 10 psi boost. You probably know this already, just trying to help. > -- Ian >=20 Ian, yes I have a manifold referenced fuel pressure regulator. But I like the way you think. :-) Actually that is something else that has been acting funny, and may be=20 related. My fuel pressure is going up much faster than it should. Idle is 3= 2=20 PSI, but by about 30" it is showing 99 PSI (max for instrument). I spent=20 several days on that one, and eventually figured out that the sensor is not= =20 right - fuel flow (which is dependant on pressure) does not change, and if= =20 the pressure really ever reaches 60psi the engine will not run well. Waitin= g=20 on a new sensor. --=20 Dave Leonard Turbo Rotary RV-6 N4VY http://members.aol.com/_ht_a/rotaryroster/index.html http://members.aol.com/vp4skydoc/index.html ------=_Part_122_4210885.1118292728151 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline
On 6/8/05, I= an Dewhirst <ianddsl@magma.ca> wrote:
Hi David,
=  
Are you using = a fuel pressure regulator that regulates fuel pressure relative to man= ifold pressure?  Tou would have a hose from the FPR to the manifold.&n= bsp; Your fuel pressure indicated should rise at the same rate that boost p= ressure rises.  If your normal fuel pressure is 40 psi it should be 50= psi at 10 psi boost.  You probably know this already,  just tryi= ng to help.
=  
-- Ian<= /span>
 
Ian, yes I have a manifold referenced fuel pressure regulator.
But I like the way you think.  :-)
 
Actually that is something else that has been acting funny, and may be= related.  My fuel pressure is going up much faster than it should.&nb= sp; Idle is 32 PSI, but by about 30" it is showing 99 PSI (max for ins= trument).  I spent several days on that one, and eventually figured ou= t that the sensor is not right - fuel flow (which is dependant on pressure)= does not change, and if the pressure really ever reaches 60psi the engine = will not run well.  Waiting on a new sensor.
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