KR> Fuel Lines

[phillip matheson]

Hi Dan old friend.

Boy you have been busy.

How long since you flew your KR2?

I hope it is working out for you. 

You do sound a bit sick of it at times in your emails.

all the best.

Phil.


Phil Matheson
SAAA Ch 37
http://www.philskr2.50megs.com/

KR> Fuel Lines

[Dan Heath]

I have all the fuel lines completed, with the exception of the flexible line
that will join the tank to this fuel system.  I am also changing out the
brake system for a Matco system that uses a common reservoir and this is
included in the 4 pics on the top of this page.  I am not satisfied with the
brake lines yet, but will get there soon.



Right now, I am installing the tanks into the wings and finishing off the
places where I had to cut into the wings to do this mod.



I plan to be back in the air on VW power, by the middle of next month.



See brake and fuel lines at: 



http://krbuilder.org/ConvertingToWingTanks/index.html



Daniel R. Heath

da...@windstream.net

See N64KR at   http://KRBuilder.org - Then click on
the pics 

See you at the 2011 - KR Gathering in Mt. Vernon, Il - MVN

KR> fuel lines

[AVLEC]

Hi guys
I recently took delivery of a 3300 Jabiru motor and a firewall forward kit
for it to be installed in a whisper motor glider.
Here is a factory supplied motor and fitment kit that has the entire fuel
system plumbed with "rubber" fuel hose, barbed fittings and hose clamps.
This is for the suction lines as well as for the pressurised part after the
fuel pumps.
Come to think of it, the 2.0L fuel injected hot hatch (VW GTI thrasher,
sorry Mark I couldn't resist) that I used to have used rubber hose and hose
clamps troughout the system except it had steel pipes under the car for
obvious reasons.
If this is accepted practise by Jabiru and even in high pressure auto fuel
injection systems, why is it frowned upon in aviation?
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> fuel lines

[Barry Kruyssen]

Re-enforced rubber hoses are fine on suction side as won't collapse.
The pressure side on most carburetted engines is normally only pressurised
to a few PSI, at a maximum 7 PSI (hardly high pressure) and again rubber
hose is fine.  

The main problem with rubber hose is that it burns.  If you have an engine
fire that is not fuelled by gasoline, you soon will when the rubber catches
fire and burns through.  There is a fire resistant covering that can be used
to cover rubber fuel and oil hoses.

I have rubber hoses with the fire resistant covering for my Jabiru
installation.

Regards
Barry Kruyssen
k...@bigpond.com
http://www.users.bigpond.com/kr2/kr2.htm 
Cairns, Australia


-Original Message-
From: krnet-bounces+kr2=bigpond@mylist.net
[mailto:krnet-bounces+kr2=bigpond@mylist.net] On Behalf Of AVLEC
Sent: Sunday, 11 February 2007 4:06 AM
To: KRnet
Subject: KR> fuel lines

Hi guys
I recently took delivery of a 3300 Jabiru motor and a firewall forward kit
for it to be installed in a whisper motor glider.
Here is a factory supplied motor and fitment kit that has the entire fuel
system plumbed with "rubber" fuel hose, barbed fittings and hose clamps.
This is for the suction lines as well as for the pressurised part after the
fuel pumps.
Come to think of it, the 2.0L fuel injected hot hatch (VW GTI thrasher,
sorry Mark I couldn't resist) that I used to have used rubber hose and hose
clamps troughout the system except it had steel pipes under the car for
obvious reasons.
If this is accepted practise by Jabiru and even in high pressure auto fuel
injection systems, why is it frowned upon in aviation?
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> fuel lines

[jscott.pi...@juno.com]

Rotax also supplies barbed fittings and black rubber like hoses.  As
Barry says, the key here isn't that the hoses won't work, it's fire
prevention and containment.  Using those hoses in a plane isn't a
problem, but I would strongly recommend using firesleeve over them.

Jeff Scott


On Sat, 10 Feb 2007 20:05:38 +0200 "AVLEC"  writes:
> Hi guys
> I recently took delivery of a 3300 Jabiru motor and a firewall  forward
kit
> for it to be installed in a whisper motor glider.
> Here is a factory supplied motor and fitment kit that has the entire 
fuel
> system plumbed with "rubber" fuel hose, barbed fittings and hose 
clamps.
> This is for the suction lines as well as for the pressurised part 
after the
> fuel pumps.
> Come to think of it, the 2.0L fuel injected hot hatch (VW GTI 
thrasher,
> sorry Mark I couldn't resist) that I used to have used rubber hose  and
hose
> clamps troughout the system except it had steel pipes under the car for
> obvious reasons.
> If this is accepted practise by Jabiru and even in high pressure  auto
fuel
> injection systems, why is it frowned upon in aviation?
> Regards
> Dene Collett
> KR2SRT builder
> South africa
> Whisper assembler
> See: www.whisperaircraft.com
> mailto: av...@telkomsa.net

KR> fuel lines

[Colin Rainey]

Jeff Scott said: Using those hoses in a plane isn't a
problem, but I would strongly recommend using firesleeve over them.

A good rule of thumb to use is that no more than 12 inches of rubber hose be
used. That was the rule for drag racing. This applied to the entire car,
front to back. The solution was to use rubber line made for high pressure
applications like fuel injection and cover with braided line, or use the
braided steel lines from the factory on most domestic cars. One can easily
acquire these lines from the junk yard by seeking out fuel injected V6 cars,
and cutting the lines near the firewall where the steel or aluminum lines
terminated and became braided for flexibility to the fuel injection rail. A
compression tubing fitting from your local auto parts house will mate this
back to your original line. The best cars are those with multi-port fuel
injection as they had higher fuel pressure requirements than TBI units did.
These lines are good for at least 80 psi, and if gotten from an early Volvo
or VW fuel injection are good for over 100 psi (GM units are designed for
30-45 psi with 60-80 psi max; VW or Volvo early 240 & 760 models 80 psi max
100 psi).

Colin Rainey
brokerpi...@bellsouth.net 

KR> Fuel Lines

[mtmcgo...@aol.com]

 The KR-2 that I am refurbishing has an interesting rats nest of plumbing 
around  the fuel pump. Fuel comes from the header tank to the gascolator then 
out 
 to a tee. One line runs to the fuel pump, the other to another tee and on to 
the  carb, coming out of the fuel pump the line runs to that tee in the 
delivery line  to the carb.  Basically there is a line from the gascolator to 
the 
carb  with an attached loop line with the fuel pump in it.  
  Why can't you just go from the gascolator to the fuel pump to 
the carb?   The pump is a new Facet and the carb is a Zenith.

Mike McGowan
 N4288C

Réf. : KR> Fuel Lines

[Serge VIDAL]

Most probably, the idea was to use the fuel pump as a booster pump for 
take-off and landing, and to get gravity-fed free-flow to the carb the 
rest of the time.

In theory, you could get free-flow through the Facet, but now, maybe that 
flow was insufficient (on Facets, the flow you get depends on at which 
point of the cycle the pump stops).

I did have a single Zenith to feed my 2.4 liter VW, and I, too, ended up 
bypassing the Facet for that reason.

Just my 2 cents worth.

Serge Vidal
Canberra
Australia




mtmcgo...@aol.com

Envoyé par : krnet-bounces+serge.vidal=sagem@mylist.net
12-02-07 09:36
Veuillez répondre à KRnet
Remis le : 12-02-2007 09:37


Pour :  kr...@mylist.net
cc :(ccc : Serge VIDAL/DNSA/SAGEM)
Objet : KR> Fuel Lines



 The KR-2 that I am refurbishing has an interesting rats nest of plumbing 
around  the fuel pump. Fuel comes from the header tank to the gascolator 
then out 
 to a tee. One line runs to the fuel pump, the other to another tee and on 
to 
the  carb, coming out of the fuel pump the line runs to that tee in the 
delivery line  to the carb.  Basically there is a line from the gascolator 
to the 
carb  with an attached loop line with the fuel pump in it. 
  Why can't you just go from the gascolator to the fuel pump 
to 
the carb?   The pump is a new Facet and the carb is a Zenith.

Mike McGowan
 N4288C
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