X-Virus-Scanned: clean according to Sophos on Logan.com X-PolluStop-Diagnostic: (direct reply)\eX-PolluStop-Score: 0.00\eX-PolluStop: Scanned with Niversoft PolluStop 2.1 RC1, http://www.niversoft.com/pollustop Return-Path: Received: from imf23aec.mail.bellsouth.net ([205.152.59.71] verified) by logan.com (CommuniGate Pro SMTP 4.3c4) with ESMTP id 863353 for flyrotary@lancaironline.net; Sat, 09 Apr 2005 17:15:00 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.71; envelope-from=sladerj@bellsouth.net Received: from JSLADE ([65.8.218.139]) by imf23aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050409211414.EHTM2468.imf23aec.mail.bellsouth.net@JSLADE> for ; Sat, 9 Apr 2005 17:14:14 -0400 From: "John Slade" To: "Rotary motors in aircraft" Subject: fuel pressure problem solved Date: Sat, 9 Apr 2005 17:14:14 -0400 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_002C_01C53D27.8E22EE80" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_002C_01C53D27.8E22EE80 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Rotary people, I found the problem that had been causing intermittent low fuel pressure on one side and thought others might be interested. There was a small amount of "crud" in the inlet side of the pump. I'd estimate about 1/2 cc of what looked like urethane foam dust that had got through the strainer and, presumably, was shifting around and occasionally causing a minor blockage. Since I'd already obtained a replacement pump I put it in anyway. Interestingly the original pump, which I got from Tracy, was a Walbro Inline fuel pump-GSL393. This is identical in outward appearance to the Walbro GSL394 I just replaced it with. The 394 is a slightly higher price model with slightly better specs. Both models have all metal construction and 1/8 NPT metal fittings either end. I got mine from Lightning Motorsports. By the way, Lightning Motorsports is aptly named - They're unpredictable, unresponsive to suggestions and on time delivery of their products seems to be about a million-to-one chance. :) My 2 c for the day. John (hoping Tracy never gets caller ID) ------=_NextPart_000_002C_01C53D27.8E22EE80 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Rotary=20 people,
I = found the=20 problem that had been causing intermittent low fuel pressure on one = side=20 and thought others might be interested. There was a small amount of=20 "crud" in the inlet side of the pump. I'd estimate about 1/2 cc of = what=20 looked like urethane foam dust that had got through the strainer and,=20 presumably, was shifting around and occasionally causing a minor=20 blockage.
 
Since I'd=20 already obtained a replacement pump I put it in anyway. Interestingly = the=20 original pump, which I got from Tracy, was a Walbro Inline fuel pump-GSL393. = This is identical in outward appearance to = the=20 Walbro GSL394 I just replaced it with. The 394 is a slightly higher = price=20 model with slightly better specs. Both models have all metal = construction=20 and 1/8 NPT metal fittings either end. I got mine from Lightning = Motorsports.=20
 
By the way,=20 Lightning Motorsports is aptly named - They're unpredictable, = unresponsive to=20 suggestions and on time delivery of their products seems to be about a=20 million-to-one chance. :)
My 2 c for=20 the day.
John (hoping=20 Tracy never gets caller ID)
 
 
 
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