From: "Andrew Martin" <flyrotary@lancaironline.net>
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Date: Fri, 7 Apr 2017 14:04:41 +0800
Message-ID: <CAJxaVD3kVNgMpL6dGGzX+YFbAzGb98tJA=oaa=_WkGMYmbsC_A@mail.gmail.com>
Subject: Re: [FlyRotary] Walbro Fuel Pumps
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Steve
Tracy supplied me with 393's. They pump more than enough. If you go bigger
prob best to get bigger reg also to cope with the excess return fuel
Andrew

On 7 Apr 2017 12:13 pm, "steve Izett" <flyrotary@lancaironline.net> wrote:

> Hi Guys
>
> If you recall one pump was drawing a bunch more current yet not producing
> as much pressure at the rail.
>
> I pulled the pumps GLS392=E2=80=99s from the Glasair today and tested the=
n as far
> as current with no restriction.
> The good pump was pulling just over 3amps and the faulty one had visibly
> less flow rate and was drawing 4.4amps.
>
> As I was unscrewing the connectors of the faulty one I could see some kin=
d
> of insect remains in the suction side of the pump.
> I cleaned out a little more gunk but on testing was still the same so Ill
> bin it.
> Not sure how and when this insect got into the system!
> I filter all fuel going into the header tank before feeding the two
> pressure pumps and filtering before heading for the rail.
>
> So which pump do I buy?:
>         GLS391 190LPH
> or      GLS393 155LPH
>
> I=E2=80=99ll keep my original GLS392 as the backup pump.
>
> Thanks guys
>
> Steve Izett
>
>
>
>
>
>
> --
> Homepage:  http://www.flyrotary.com/
> Archive and UnSub:   http://mail.lancaironline.net:
> 81/lists/flyrotary/List.html
>

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<div dir=3D"auto">Steve<div dir=3D"auto">Tracy supplied me with 393&#39;s. =
They pump more than enough. If you go bigger prob best to get bigger reg al=
so to cope with the excess return fuel=C2=A0</div><div dir=3D"auto">Andrew<=
/div></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On 7 A=
pr 2017 12:13 pm, &quot;steve Izett&quot; &lt;<a href=3D"mailto:flyrotary@l=
ancaironline.net">flyrotary@lancaironline.net</a>&gt; wrote:<br type=3D"att=
ribution"><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;bord=
er-left:1px #ccc solid;padding-left:1ex">Hi Guys<br>
<br>
If you recall one pump was drawing a bunch more current yet not producing a=
s much pressure at the rail.<br>
<br>
I pulled the pumps GLS392=E2=80=99s from the Glasair today and tested then =
as far as current with no restriction.<br>
The good pump was pulling just over 3amps and the faulty one had visibly le=
ss flow rate and was drawing 4.4amps.<br>
<br>
As I was unscrewing the connectors of the faulty one I could see some kind =
of insect remains in the suction side of the pump.<br>
I cleaned out a little more gunk but on testing was still the same so Ill b=
in it.<br>
Not sure how and when this insect got into the system!<br>
I filter all fuel going into the header tank before feeding the two pressur=
e pumps and filtering before heading for the rail.<br>
<br>
So which pump do I buy?:<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 GLS391 190LPH<br>
or=C2=A0 =C2=A0 =C2=A0 GLS393 155LPH<br>
<br>
I=E2=80=99ll keep my original GLS392 as the backup pump.<br>
<br>
Thanks guys<br>
<br>
Steve Izett<br>
<br>
<br>
<br>
<br>
<br>
<br>
--<br>
Homepage:=C2=A0 <a href=3D"http://www.flyrotary.com/" rel=3D"noreferrer" ta=
rget=3D"_blank">http://www.flyrotary.com/</a><br>
Archive and UnSub:=C2=A0 =C2=A0<a href=3D"http://mail.lancaironline.net:81/=
lists/flyrotary/List.html" rel=3D"noreferrer" target=3D"_blank">http://mail=
.lancaironline.net:<wbr>81/lists/flyrotary/List.html</a><br>
</blockquote></div></div>

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