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From: "Bob Perkinson" <bobperk@bellsouth.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: RE: [FlyRotary] Re: Help, intermittent fuel leak!!
Date: Sun, 21 Aug 2005 12:59:10 -0500
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Bernie,
Have you transferred all the fuel from the tip tank?  If you have, and have
room in the mains, add more fuel and duplicate the transfer.  Just a
thought.   Not being sure just how big the puddle was, I can only add to
what ED said, the vent system in the RV can fill with fuel, it is built like
a drain trap.  When you moved fuel to the main tank it pressurized the vent
system and moved any fuel that was sitting in the low area of the vent line
up and over the top, siphoning all the fuel out of the vent line.

Bob Perkinson
Hendersonville, TN.
RV9A N658RP Reserved
If nothing changes
Nothing changes


-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On
Behalf Of WALTER B KERR
Sent: Sunday, August 21, 2005 12:32 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Help, intermittent fuel leak!!


On Sat, 20 Aug 2005 18:57:15 -0400 "Ed Anderson"
<eanderson@carolina.rr.com> writes:
> Bernie,
>
> Here is a thought - assuming based on your inspection today that all
> fuel
> connections under the cowl are tight and no hose leaks.  IF your
> tanks has
> the external tank vent line that Van calls for - is it possible that
> during
> your fuel transfer that you may have transfer sufficient fuel to
> over fill
> the one tank and to cause some excess fuel to flow out the vent
> line?
> Recall the vent line exits (at least on my RV-6A) right behind the
> bottom of
> the cowling.  That's what I would bet on.
>
> Ed A
> ========================================

Hi Ed,

Thans for the thought but keep thinking! My return tank is not half full
so do not believe it was blowing out the standard Van's vent lines.

Can not find any loose fittings nor leaky hoses.

How would you pressurise the system to a higher pressure to see if
something developes without damaging injectors or regulator?

Right now, my   best guess it that there was a dry joint that leaked. Had
not run engine in about 2 weeks.

Bernie

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