X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from nm26-vm0.access.bullet.mail.sp2.yahoo.com ([98.139.44.186] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with SMTP id 5039822 for flyrotary@lancaironline.net; Fri, 01 Jul 2011 13:40:22 -0400 Received-SPF: none receiver=logan.com; client-ip=98.139.44.186; envelope-from=keltro@att.net Received: from [98.139.44.96] by nm26.access.bullet.mail.sp2.yahoo.com with NNFMP; 01 Jul 2011 17:39:46 -0000 Received: from [98.139.44.81] by tm1.access.bullet.mail.sp2.yahoo.com with NNFMP; 01 Jul 2011 17:39:46 -0000 Received: from [127.0.0.1] by omp1018.access.mail.sp2.yahoo.com with NNFMP; 01 Jul 2011 17:39:46 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 970714.28469.bm@omp1018.access.mail.sp2.yahoo.com Received: (qmail 89815 invoked by uid 60001); 1 Jul 2011 17:39:46 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=att.net; s=s1024; t=1309541986; bh=EaVwCjJDwvsnQUXwYMEy0Nyb1MVEXk4wFGp0zBrm6Is=; h=X-YMail-OSG:Received:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type; b=bgfEZ/UNlVo5O338bMTUJi6LQYO7UNE7lstj2j43Tt1ldkspfkP6q3hoz5matGBJuV5LUNrRtIwA8ozAjbuZy/2PbT5kql51RurwIEiFb2SIShEaKGblH7KK+w9utNxDkXpiF+0vdao1ZFpBPujf+vHJ2glc2VggStjpeU0+OVQ= DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=att.net; h=X-YMail-OSG:Received:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type; b=fCo0jS8MUitvTRJuklmSvXrGgKJ6kncbT/bstc0rCxMoYlQEKF1DyIVjABDDaWRFrPjNvl1qP4xpglVQ1k9XdORNL7o3knbv3/l0joPaW+g3fZmPuMoIXvlt/xwZxdeLMasckg/NDZLrVRx0PhwoEOkxh1HePCKQ2a6f/pwIwiE=; X-YMail-OSG: xqrlglwVM1lYuPWCj7_mI6vb_yzckoKXQdFFJKdbA6l_1bH U3qxZhM8bLwGLdQy8l509mhARW5fRfCyRGTavk.qqJO3vPWSQk.nLdjbTMxA T6DTRBWv_7y8eOvV33XsgrXZRq1z28snBIznt3_lggKG39lATOvM5FSoiXxM 29DrvUT96TYrnyJgl69TFeKAKWIKT_1dkOeMmU_mf_a4KiHaJxjOia1YsrNR .IvXTsMLeXX3nTAldjtdYmgzhK5ZNbKmMl.XPj45QMIhFi0KWH7e7BJi1MWB .LFBHU7AyLjL7aW.pab966R6L9SNeygOTyE0ioj2CVjlaNquOoVRZED5OyNT i15MciZVaq.Fe7tmZFYXnumvWQ9.PqnGlqfCuli4.Xb7PCM5oE1kP8ynzNpN 3P.lHfW.a3CBwNqn.i11pX9NmqT3pIRTGo_2Q4IduRbhwSlwBTDbYqvhiYLW 8yABx2i6tKCPd3Kcz9zsTgT2sUudL6hTDLwSnwN_AFjPyfFs04LqRLrKQXWg ZMv_1sy8xZ_8AGVMM5Vsc0npu2M3MgWvMhOQ_1pmZ5hfHX1zbM3PhJqShN3S oQ4ttJ7vfijWrSPm17D.0Prw- Received: from [208.114.39.18] by web83913.mail.sp1.yahoo.com via HTTP; Fri, 01 Jul 2011 10:39:46 PDT X-Mailer: YahooMailWebService/0.8.112.307740 References: Message-ID: <1309541986.60149.YahooMailNeo@web83913.mail.sp1.yahoo.com> Date: Fri, 1 Jul 2011 10:39:46 -0700 (PDT) From: Kelly Troyer Reply-To: Kelly Troyer Subject: Re: GSL393/74028 Fuel Pump Replacement/Fuel Leak To: Rotary motors in aircraft MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-1782331563-1309541986=:60149" --0-1782331563-1309541986=:60149 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Group,=0A=A0=A0=A0 The "Russell" fitting from "Summit" appears to come with= a soft aluminum sealing=0Awasher..........All the stock oil fittings on th= e "Mazda" engines (engine, oil cooler, etc)=0Ahave a aluminum or copper sea= ling washer...........FWIW=0A=A0=0Ahttp://www.summitracing.com/parts/RUS-67= 0470/=0A=0AKelly Troyer=0A"DYKE DELTA JD2" (Eventually)=0A"13B ROTARY"_ Eng= ine"RWS"_RD1C/EC2/EM2=0A"MISTRAL"_Backplate/Oil Manifold=0A"TURBONETICS"_TO= 4E50 Turbo=0A=0AFrom: Steven W. Boese =0ATo: Rotary motors= in aircraft =0ASent: Friday, July 1, 2011 12:= 03 AM=0ASubject: [FlyRotary] Re: GSL393/74028 Fuel Pump Replacement/Fuel Le= ak=0A=0AScott,=0A=0AI have used the pumps with the 10mmx1.0 connection with= out leak problems.=A0 I use a soft aluminum or soft copper crush washer bet= ween the pump and fitting, not a rubber o-ring.=A0 The mating surfaces shou= ld be square and smooth and could be retooled in a lathe if needed.=A0 The = thread is=A0a straight thread, not tapered, so it doesn't seem like trying = to seal the joint in the threads with tape or other sealant would work very= well.=0A=0ASteve Boese=0A=0A=A0=0A=0A>>=0A>>From: Scott =0A>>Sent: Wednesd= ay, June 29, 2011 9:56 PM=0A>>To: Rotary motors in aircraft =0A>>Subject: [= FlyRotary] GSL393/74028 Fuel Pump Replacement/Fuel Leak=0A>>I have inline f= uel pumps from Tracy from a while back.=A0 They were from Napa and were the= 74028 flavor( http://www.summitracing.com/parts/CRT-P74028/?rtype=3D10 see= ms most like them currently ) Tracy used to provide.=0A>>=0A>>The fixed hos= e 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 a= nd everytime I think I have the fuel drip fixed and start the pump without = the engine it doesn't leak.=A0 But, after a short engine run the drip retur= ns.=A0 =0A>>=0A>>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 oth= er inline pumps have folks been using?=A0 The 74028 flavor fuel pumps, the = 10mm fits but does not seal.=A0 I did not use thread tape or other thread s= ealer.=A0 And no amount of tightening seems to keep it from leaking again.= =0A>>=0A>>Thoughts on a fuel pump substitute?=A0 Way to seal that fitting t= o the existing 74028 pump?=0A>>=0A>>Thank You.=0A>>-Scott=0A>>http://n820wa= .blogspot.com/2011/06/engine-runs.html=0A>>=0A>> =0A>-----Inline Attachment= Follows-----=0A>=0A>=0A>-- Homepage:=A0 http://www.flyrotary.com/ Archive = and UnSub:=A0=A0=A0http://mail.lancaironline.net:81/lists/flyrotary/List.ht= ml --0-1782331563-1309541986=:60149 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
Group,
    The "Russell" fitting from "Su= mmit" appears to come with a soft aluminum se= aling
washer..........All = the stock oil fittings on the "Mazda" engines (engine, oil cooler, etc)
have a aluminum or c= opper sealing washer...........FWIW
 
 
Kelly Troyer
"DYKE DELTA JD2" (Eventually)
"13B ROTARY"_ Engine= "RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold
"TURBONETICS"_TO4E50 Turb= o

From: Steven W. Boese <SBoese@uwyo.edu>
To: Rotary motors in aircraft <fl= yrotary@lancaironline.net>
Sent:= Friday, July 1, 2011 12:03 AM
Subject: [FlyRotary] Re: GSL393/74028 Fuel Pump Replaceme= nt/Fuel Leak
Scott,
 
I have used the pumps with the 10mmx1.0 connection without leak proble= ms.  I use a soft aluminum or soft copper crush washer between the pum= p and fitting, not a rubber o-ring.  The mating surfaces should be squ= are and smooth and could be retooled in a lathe if needed.  The thread= is a straight thread, not tapered, so it doesn't seem like trying to = seal the joint in the threads with tape or other sealant would work very we= ll.
 
Steve Boese

 
 
From: Scott
Sent: Wednesday, June 29, 2011 9:56 PM
Subject: [FlyRotary] GSL393/74028 Fuel Pump Replacement/Fuel Le= ak
I have inlin= e fuel pumps from Tracy from a while back.  They were from Napa and we= re the 74028 flavor( http://www.summitracing.com/parts/CRT-P74028/?rtype=3D= 10 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 ha= ve a 10mmx1.0( http://www.summitracing.com/parts/RUS-670480/ ) with an o-ri= ng and everytime I think I have the fuel drip fixed and start the pump with= out the engine it doesn't leak.  But, after a short engine run the dri= p returns. 

As I burned out one of the pumps already( importan= t safety note make sure the fuel selector valve is not off while you have t= he 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 fr= om leaking again.

Thoughts on a fuel pump substitute?  Way to s= eal that fitting to the existing 74028 pump?

Thank You.
-Scotthttp://n820wa.blogspot.com/2011/06/engine-runs.html


-----Inline= Attachment Follows-----

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