X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.122] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with ESMTP id 5037723 for flyrotary@lancaironline.net; Wed, 29 Jun 2011 22:21:35 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.122; envelope-from=eanderson@carolina.rr.com Return-Path: X-Authority-Analysis: v=1.1 cv=pLPlkKcK38cN4Cv4YkVeTGGRYpmKez/IrX640LVKWnc= c=1 sm=0 a=Zg8nm-bJVxcA:10 a=rPkcCx1H5rrOSfN0dPC7kw==:17 a=wrnlkVK_AAAA:8 a=4uN5Pu5QAAAA:8 a=GpHj00_gyVHpj_dfZAQA:9 a=HxSUXP_KspHK-Ony6jUA:7 a=wPNLvfGTeEIA:10 a=BsPVQHA2yI8A:10 a=gA6IeH5FQcgA:10 a=NWVoK91CQyQA:10 a=CjxXgO3LAAAA:8 a=Ia-xEzejAAAA:8 a=gxs2dJVltFhFfqgLkAoA:9 a=_VCSOw9jCd0ghMq1ds0A:7 a=rC2wZJ5BpNYA:10 a=EzXvWhQp4_cA:10 a=rPkcCx1H5rrOSfN0dPC7kw==:117 X-Cloudmark-Score: 0 X-Originating-IP: 174.110.167.5 Received: from [174.110.167.5] ([174.110.167.5:53677] helo=EdPC) by cdptpa-oedge04.mail.rr.com (envelope-from ) (ecelerity 2.2.3.46 r()) with ESMTP id 32/42-20202-D8DDB0E4; Thu, 30 Jun 2011 02:21:01 +0000 Message-ID: <4E1C7B8987B64DBAAC8E9B7830DC5E46@EdPC> From: "Ed Anderson" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] GSL393/74028 Fuel Pump Replacement/Fuel Leak Date: Wed, 29 Jun 2011 22:20:30 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000F_01CC36AA.C1915850" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 This is a multi-part message in MIME format. ------=_NextPart_000_000F_01CC36AA.C1915850 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Scott, I have used the MDS inline fuel pump (very similar to the ones Tracy = sells). I have used them for over 10 years and never had them leak. = They use (what used to be called "Saginaw fittings - I think because = they were metric and used in Automobile fuel systems" - with the small = "O" ring. In fact, it looks exactly like the summit racing part. = There is always the possibility you got a defective fitting or an old = "O" ring. Ed From: Scott=20 Sent: Wednesday, June 29, 2011 9:56 PM To: Rotary motors in aircraft=20 Subject: [FlyRotary] GSL393/74028 Fuel Pump Replacement/Fuel Leak I have inline fuel pumps from Tracy from a while back. They were = from Napa and were the 74028 flavor( = http://www.summitracing.com/parts/CRT-P74028/?rtype=3D10 seems most like = them currently ) Tracy used to provide. The fixed hose barb side of course does not leak, but on the screw = fitting side I have a 10mmx1.0( = http://www.summitracing.com/parts/RUS-670480/ ) with an o-ring and = everytime I think I have the fuel drip fixed and start the pump without = the engine it doesn't leak. But, after a short engine run the drip = returns. =20 As I burned out one of the pumps already( important safety note = make sure the fuel selector valve is not off while you have the pump = turned on and are checking for leaks ) and will need to replace it what = other inline pumps have folks been using? The 74028 flavor fuel pumps, = the 10mm fits but does not seal. I did not use thread tape or other = thread sealer. And no amount of tightening seems to keep it from = leaking again. Thoughts on a fuel pump substitute? Way to seal that fitting to = the existing 74028 pump? Thank You. -Scott http://n820wa.blogspot.com/2011/06/engine-runs.html =20 ------=_NextPart_000_000F_01CC36AA.C1915850 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi Scott,

I have used the MDS inline fuel pump (very = similar to the=20 ones Tracy sells). I have used them for over 10 years and never = had them=20 leak. They use (what used to be called "Saginaw fittings - I think = because=20 they were metric and used in Automobile fuel systems" - with the small = "O"=20 ring. In fact, it looks exactly like the summit racing part. = There is always the possibility you got a defective fitting or an=20 old "O" ring.

From: Scott

Sent: Wednesday, June 29, 2011 9:56 PM

To: Rotary motors in = aircraft

Subject: [FlyRotary] GSL393/74028 Fuel Pump Replacement/Fuel = Leak

I have inline fuel pumps from Tracy from a while=20 back. They were from Napa and were the 74028 flavor( http://= www.summitracing.com/parts/CRT-P74028/?rtype=3D10=20 seems most like them currently ) Tracy used to provide.

The = fixed=20 hose barb side of course does not leak, but on the screw fitting = side I=20 have a 10mmx1.0( http://www.summitr= acing.com/parts/RUS-670480/=20 ) with an o-ring and everytime I think I have the fuel drip fixed = and=20 start the pump without the engine it doesn't leak. But, = after a=20 short engine run the drip returns.

As I burned out = one of=20 the pumps already( important safety note make sure the fuel = selector valve=20 is not off while you have the pump turned on and are checking for = leaks )=20 and will need to replace it what other inline pumps have folks = been=20 using? The 74028 flavor fuel pumps, the 10mm fits but does = not=20 seal. I did not use thread tape or other thread = sealer. And no=20 amount of tightening seems to keep it from leaking = again.

Thoughts=20 on a fuel pump substitute? Way to seal that fitting to the = existing=20 74028 pump?

Thank=20 = You.
-Scott
http://n820wa.blogspot.com/2011/06/engine-runs.html
=

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