Return-Path: Received: from fed1rmmtao12.cox.net ([68.230.241.27] verified) by logan.com (CommuniGate Pro SMTP 4.2) with ESMTP id 350750 for flyrotary@lancaironline.net; Tue, 03 Aug 2004 13:00:51 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.27; envelope-from=ALVentures@cox.net Received: from BigAl ([68.107.116.221]) by fed1rmmtao12.cox.net (InterMail vM.6.01.03.02.01 201-2131-111-104-103-20040709) with ESMTP id <20040803170020.VSQD19941.fed1rmmtao12.cox.net@BigAl> for ; Tue, 3 Aug 2004 13:00:20 -0400 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Fittings for Tracys Fuel Pumps Was Re: Fuel Filter Part Number Date: Tue, 3 Aug 2004 10:00:40 -0700 Message-ID: <000901c4797b$67cad1a0$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000A_01C47940.BB6BF9A0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_000A_01C47940.BB6BF9A0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Dean; =20 Not questioning that your pumps have 5/16 - 24 threads, just mentioning = that Tracy also provided pumps with 10-1 metric threaded barb fittings. We = know he has sold different pumps, and I'm sure manufacturers provide both = metric and British measures. =20 The 10 - 1 metric to AN-6 adapter is a standard carburetor fitting. I = think Earl's has them, and perhaps also Baker precision. =20 Al =20 Subject: [FlyRotary] Re: Fittings for Tracys Fuel Pumps Was Re: Fuel = Filter Part Number =20 Al, Mark, and Scott =20 The pumps that I received from Tracy had a fixed 5/16 hose barb on the = inlet and a 5/16-24 threaded brass hose barb for the outlet. A 5/16-24 bolt = was a perfect fit in the outlet. A 10MMx1.0 bolt would not even start to = engage the threads in the pump because the max thread dia was too large and the matching metric nut was sloppy on the brass hose barb. The US thread = pitch was 24/inch and the metric 1.0 is 25.4/inch. With the 991953 fitting = only engaging approx 5/16 inch, and the metric thread being a larger = diameter, I felt that I would have sufficient good thread engagement for a sound = joint. Perhaps I overlooked it in the Pegasus catalog, but I was unable to find = an AN6 to 10-1 metric fitting there. I have purchased other AN fittings = there as well as ready made cross-over brake hoses with metallic braid for my = dual brake installation to replace Van's plastic lines. I think that my experience just shows, once again, the variation in pumps supplied by = the National Aviation Parts Association (:>)}. I am installing Earl's HP 35 micron bronze fuel filters (obtained from Wicks) down stream of the = pumps and coupling them with AN6 to AN6 Female Swivel Couplings from Pegasus. =20 Dean ----- Original Message -----=20 From: Al Gietzen =20 To: Rotary motors in aircraft=20 Sent: Tuesday, August 03, 2004 9:11 AM Subject: [FlyRotary] Re: Fittings for Tracys Fuel Pumps Was Re: Fuel = Filter Part Number =20 The pumps I got from Tracy had 10-1 metric threads, both ends. =20 Al =20 Subject: [FlyRotary] Re: Fittings for Tracys Fuel Pumps Was Re: Fuel = Filter Part Number =20 Dean, I may be wrong here, but I believe the threads are metric... 10mm if I'm correct. It is very close to the 5/16-24, but not a perfect fit. They = sell a 10mm x 1.0 to AN adapter. See: http://www.pegasusautoracing.com/pdfs/069.pdf =20 Mark At 09:20 PM 8/2/2004 -0500, you wrote: Mark and Scott The NAPA pumps that I purchased from Tracy were marked Carter 2H26A380 = and the screw in barb adapter was a 5/16-24 thread. I was unable to find = any source of 5/16 to AN6 adapters. I obtained the Earl's 991953 fittings = which came with soft aluminum seal washers. Using a 23/64 drill and both = standard and bottoming 10mm-1.0 taps, I was able to cut several almost complete threads to match the Earl's fittings. After removing any trace of = cuttings and carefully smoothing the pump face, I installed the fittings using = the aluminum washers and fuel lube on the threads. They torqued up well but = I haven't had a chance to leak check them yet. Dean Van Winkle RV-9A Fuselage/Finish '89 13B NA, RD-1B, EC2, EM2 ----- Original Message -----=20 From: "marc" To: "Rotary motors in aircraft" Sent: Thursday, July 29, 2004 6:53 PM Subject: [FlyRotary] Re: Fittings for Tracys Fuel Pumps Was Re: Fuel = Filter Part Number > I've always wondered why almost ALL cars never use AN fittings and = their > fuel lines seldom leak. Somehow, with the number of cars on the road > that are fi, I think AN fuel lines are a waste, (if you do it right, > using the right clamps and lines!). > > Marc Wiese > > > > -----Original Message----- > > From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] > On > > Behalf Of Scott > > Sent: Thursday, July 29, 2004 6:41 PM > > To: Rotary motors in aircraft > > Subject: [FlyRotary] Re: Fittings for Tracys Fuel Pumps Was Re: Fuel > > Filter Part Number > > > > >> > > >>I have Tracy's fuel pumps as well, and I have a note > > that says the fittings to convert those to > > >>AN-6 are Earl's 991953. These are metric 10mm x > > 1.0P to AN-6. > > > > I too purchased Tracy's pumps. The one's sent came > > from NAPA marked as 3f27a380 purchased from Tracy in > > November 2003. The screw in barb adapter on the high > > pressure side of the pump is 3/8" with 24TPI. > > > > Though oddly enough the ID of the tube is 7/32. Not > > 1/4 and not 3/16. Interesting... > > > > Regards... > > -Scott > > > > > > > > > > > > > > __________________________________ > > Do you Yahoo!? > > New and Improved Yahoo! Mail - 100MB free storage! > > http://promotions.yahoo.com/new_mail > > > > >> Homepage: http://www.flyrotary.com/ > > >> Archive: http://lancaironline.net/lists/flyrotary/List.html > > > > >> Homepage: http://www.flyrotary.com/ > >> Archive: http://lancaironline.net/lists/flyrotary/List.html > >> Homepage: http://www.flyrotary.com/ >> Archive: http://lancaironline.net/lists/flyrotary/List.html=20 ------=_NextPart_000_000A_01C47940.BB6BF9A0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Dean;

 

Not questioning that your = pumps have 5/16 – 24 threads, just mentioning that Tracy also provided pumps with 10-1 metric threaded barb fittings.  We know he = has sold different pumps, and I’m sure manufacturers provide both = metric and British measures.

 

The 10 – 1 metric = to AN-6 adapter is a standard carburetor fitting.  I think Earl’s has them, = and perhaps also Baker precision.

 

Al

 

Subject: [FlyRotary] Re: Fittings for Tracys Fuel Pumps Was Re: Fuel = Filter Part Number

 

Al, Mark, and = Scott

 

The pumps that I received = from Tracy had a fixed 5/16 hose barb on the inlet and a 5/16-24 threaded brass hose barb for = the outlet.  A 5/16-24 bolt was a perfect fit in the outlet.  A = 10MMx1.0 bolt would not even start to engage the threads in the pump because the max = thread dia was too large and the matching metric nut was sloppy on the = brass hose barb. The US thread pitch was 24/inch = and the metric 1.0 is 25.4/inch.  With the 991953 fitting only engaging = approx 5/16 inch, and the metric thread being a larger diameter, I felt = that I would have sufficient good thread engagement for a sound joint.  = Perhaps I overlooked it in the Pegasus catalog, but I was unable to find an AN6 to = 10-1 metric fitting there. I have purchased other AN fittings there as well as ready = made cross-over brake hoses with metallic braid for my dual brake installation to replace Van's plastic lines.  I think that my = experience just shows, once again, the variation in pumps supplied by the National Aviation Parts Association (:>)}.  I am installing Earl's HP 35 = micron bronze fuel filters (obtained from Wicks) down stream of the pumps and = coupling them with AN6 to AN6 Female Swivel Couplings from = Pegasus.

 

Dean

=

----- Original Message = -----

From: Al = Gietzen

Sent: Tuesday, August 03, 2004 9:11 AM

Subject: [FlyRotary] Re: Fittings for Tracys Fuel Pumps Was Re: Fuel = Filter Part Number

 

The pumps I got from Tracy had 10-1 metric threads, both ends.

 

Al

 

Subject: [FlyRotary] Re: Fittings for Tracys Fuel = Pumps Was Re: Fuel Filter Part Number

 

Dean,
I may be wrong here, but I believe the threads are metric... 10mm if I'm correct.  It is very close to the 5/16-24, but not a perfect = fit.  They sell a 10mm x 1.0 to AN adapter.  See: http://www.pegasusautoracing.com/pdfs/069.pdf 

Mark

At 09:20 PM 8/2/2004 -0500, you wrote:

Mark and Scott

The NAPA pumps that I purchased from Tracy were marked = Carter 2H26A380 and
the screw in barb adapter was a 5/16-24 thread.  I was unable to = find any
source of 5/16 to AN6 adapters.  I obtained the Earl's 991953 = fittings which
came with soft aluminum seal washers.  Using a 23/64 drill and both standard
and bottoming 10mm-1.0 taps, I was able to cut several almost = complete
threads to match the Earl's fittings.  After removing any trace of cuttings
and carefully smoothing the pump face, I installed the fittings using = the
aluminum washers and fuel lube on the threads. They torqued up well but = I
haven't had a chance to leak check them yet.

Dean Van Winkle
RV-9A Fuselage/Finish  '89 13B NA, RD-1B, EC2, EM2


----- Original Message -----
From: "marc" <cardmarc@charter.net>
To: "Rotary motors in aircraft" = <flyrotary@lancaironline.net>
Sent: Thursday, July 29, 2004 6:53 PM
Subject: [FlyRotary] Re: Fittings for Tracys Fuel Pumps Was Re: Fuel = Filter
Part Number


> I've always wondered why almost ALL cars never use AN fittings and = their
> fuel lines seldom leak. Somehow, with the number of cars on the = road
> that are fi, I think AN fuel lines are a waste, (if you do it = right,
> using the right clamps and lines!).
>
> Marc Wiese
>
>
> > -----Original Message-----
> > From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
> On
> > Behalf Of Scott
> > Sent: Thursday, July 29, 2004 6:41 PM
> > To: Rotary motors in aircraft
> > Subject: [FlyRotary] Re: Fittings for Tracys Fuel Pumps Was = Re: Fuel
> > Filter Part Number
> >
> > >> <snip>
> > >>I have Tracy's fuel pumps as well, and I have a = note
> > that says the fittings to convert those to
> > >>AN-6 are Earl's 991953.  These are metric 10mm = x
> > 1.0P to AN-6.
> >
> > I too purchased Tracy's pumps.  The one's sent came
> > from NAPA marked as 3f27a380 purchased from Tracy in
> > November 2003. The screw in barb adapter on the high
> > pressure side of the pump is 3/8" with 24TPI.
> >
> > Though oddly enough the ID of the tube is 7/32.  Not
> > 1/4 and not 3/16.  Interesting...
> >
> > Regards...
> > -Scott
> >
> >
> >
> >
> >
> >
> > __________________________________
> > Do you Yahoo!?
> > New and Improved Yahoo! Mail - 100MB free storage!
> > http://promotions.yahoo.com/new_mail
> >
> > >>  Homepage:  http://www.flyrotary.com/
> > >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html >
>
>
> >>  Homepage:  http://www.flyrotary.com/
> >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html >



>>  Homepage:  http://www.flyrotary.com/
>>  Archive:   http://lancaironline.net/lists/flyrotary/List.html

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