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Date: Wed, 29 Jun 2011 18:56:53 -0700 (PDT)
From: Scott <squiggles@yahoo.com>
Subject: GSL393/74028 Fuel Pump Replacement/Fuel Leak
To: flyrotary@lancaironline.net
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I have inline fuel pumps from Tracy from a while back.=A0 They were from Na=
pa 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/ ) wit=
h an o-ring and 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 t=
he drip returns.=A0=20

As I burned out one of the pumps already( important safety note make sure t=
he 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 h=
ave folks been using?=A0 The 74028 flavor fuel pumps, the 10mm fits but doe=
s not seal.=A0 I did not use thread tape or other thread sealer.=A0 And no =
amount of tightening seems to keep it from leaking again.

Thoughts on a fuel pump substitute?=A0 Way to seal that fitting to the exis=
ting 74028 pump?

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


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<table cellspacing=3D"0" cellpadding=3D"0" border=3D"0" ><tr><td valign=3D"=
top" style=3D"font: inherit;">I have inline fuel pumps from Tracy from a wh=
ile back.&nbsp; They were from Napa and were the 74028 flavor( http://www.s=
ummitracing.com/parts/CRT-P74028/?rtype=3D10 seems most like them currently=
 ) Tracy used to provide.<br><br>The fixed hose barb side of course does no=
t leak, but on the screw fitting side I have a 10mmx1.0( http://www.summitr=
acing.com/parts/RUS-670480/ ) with an o-ring and everytime I think I have t=
he fuel drip fixed and start the pump without the engine it doesn't leak.&n=
bsp; But, after a short engine run the drip returns.&nbsp; <br><br>As I bur=
ned 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 checkin=
g for leaks ) and will need to replace it what other inline pumps have folk=
s been using?&nbsp; The 74028 flavor fuel pumps, the 10mm fits but does not
 seal.&nbsp; I did not use thread tape or other thread sealer.&nbsp; And no=
 amount of tightening seems to keep it from leaking again.<br><br>Thoughts =
on a fuel pump substitute?&nbsp; Way to seal that fitting to the existing 7=
4028 pump?<br><br>Thank You.<br>-Scott<br>http://n820wa.blogspot.com/2011/0=
6/engine-runs.html<br><br></td></tr></table>
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