I've been thinking about this idea of not having a mechanical fuel pump on
a VW aircraft engine. There are several planes that dispense with it in
favor of the electric pump because the pump in the stock position can cause
a bump on the cowling. This seems dubious from a reliability standpoint,
Paul,
That particular configuration has a bit of a safety issue. You always want at
least one of your pumps before the gascolator. Check out any low wing
carburated Piper. The fuel flow goes from Fuel Tank -> Electric Fuel Pump ->
Gascolator -> Mechanical Fuel Pump -> Carb.
The reason why
:00)
To: KRnet
Cc: Larry Flesner
Subject: Re: KR> Facet pumps in series
>
>With the discussion on fuel pumps I drew up a very simple diagram of
>my system. https://dl.dropboxusercontent.com/u/32133949/fuel%20system%20001.jpg
>Outer wing tanks 12.5 gallon each, no engine driven fuel pump, back
>up battery system for electric pumps, both on for takeoff and
>landing,
With the discussion on fuel pumps I drew up a very simple diagram of
my
system.
https://dl.dropboxusercontent.com/u/32133949/fuel%20system%20001.jpg
Outer wing tanks 12.5 gallon each, no engine driven fuel pump, back
up battery system for electric pumps, both on for takeoff and
landing,
Here is a link to the diagram.
http://n1160hminiplane.com/resources/_wsb_772x422_Miniplane+Fuelsys.JPG
> On August 15, 2016 at 8:56 PM Craig Williams via KRnet list.krnet.org>
> wrote:
>
>
> Thanks for the help. Here is what I have installed. It took some pondering
> to
> find a workaround
Thanks for the help. Here is what I have installed. It took some pondering to
find a workaround for the primer but I think I came up with a good system.
Craig
> On August 13, 2016 at 7:04 PM Mark Langford wrote:
>
>
> Craig Williams wrote:
>
> > Can you plumb 2 facet pumps in series and
My KR-2 has a single Facet electric fuel pump in series with a mechanical
pump on the 2180 VW. The Facet will will free flow fuel in the forward
direction. The stock VW fuel pump has a shut off feature that will not free
flow fuel if the engine is not running; the Facet cannot pump fuel
At 05:52 PM 8/13/2016, you wrote:
>Can you plumb 2 facet pumps in series and will each run the engine
>if the other
>fails.
++
Your question has pretty much been answered but I can confirm. I've
run 2 pumps in series for 600+ hours
I feel really simple here kids. The KR2 Stock retractable gear that I am
putting back together with advice from some you and local mechs has wet
wings that I dont plan on using. Instead...A gravity feed slide valve carb
with mixture control is as sophisticated as Im going to get but she will be
Facet Pumps in series
If you are buying these pumps from another source, say a racing shop or
something, you have to watch the model you buy. Facet implements 2 feature
options that will prevent them from being used in series. Most of their
pumps have check valves in them that ensures fuel
hering in Mt. Vernon, Il - MVN
Daniel R. Heath - Lexington, SC
-Original Message-
From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Craig
Williams via KRnet
Sent: Saturday, August 13, 2016 6:52 PM
To: KRnet
Cc: Craig Williams
Subject: KR> Facet pumps in series
Questi
:52 PM
To: KRnet
Cc: Craig Williams
Subject: KR> Facet pumps in series
Question
Can you plumb 2 facet pumps in series and will each run the engine if the
other fails. I have been trying to plumb them in parallel but its a real
pain to get the tubing all bent correctly. Series would be mu
Question
Can you plumb 2 facet pumps in series and will each run the engine if the other
fails. I have been trying to plumb them in parallel but its a real pain to get
the tubing all bent correctly. Series would be much easier. It looks like
the Zenith 601 was doing it at one time. Not sure
Craig Williams wrote:
> Can you plumb 2 facet pumps in series and will each run the engine
> if the other fails?
It may depend on exactly which model you buy, but I did exactly that
with N56ML and N891JF, using the Facet 40108 that is commonly sold by
AS and Wicks. See
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