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Fuel line question



 
 
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  #1  
Old October 1st 06, 04:19 AM posted to rec.aviation.homebuilt
Lou
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Posts: 403
Default Fuel line question

Anyone have a good reason why I shouldn't use 1/4" plumbing line
(fridge water line) for fuel lines?
It seems to have great connectors. Also holds a lot more pressure than
I'll be needing. Anyone use this yet?
Lou

  #2  
Old October 1st 06, 04:47 AM posted to rec.aviation.homebuilt
Orval Fairbairn
external usenet poster
 
Posts: 824
Default Fuel line question

In article .com,
"Lou" wrote:

Anyone have a good reason why I shouldn't use 1/4" plumbing line
(fridge water line) for fuel lines?
It seems to have great connectors. Also holds a lot more pressure than
I'll be needing. Anyone use this yet?
Lou


What size engine? Quarter inch line gives you a very limited fuel flow
and can starve engines of more than 50 horses. Also, it is more
susceptible to vapor lock than larger diameter lines. The normal size
for GA fuel lines (up to 300 HP) is 3/8 inch.
  #3  
Old October 1st 06, 05:05 AM posted to rec.aviation.homebuilt
Lou
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Posts: 403
Default Fuel line question

Well that certainly does help. I'll be using a Corvair conversion.
Lou

  #4  
Old October 1st 06, 05:31 AM posted to rec.aviation.homebuilt
[email protected]
external usenet poster
 
Posts: 19
Default Fuel line question


Lou wrote:
Anyone have a good reason why I shouldn't use 1/4" plumbing line
(fridge water line) for fuel lines?
It seems to have great connectors. Also holds a lot more pressure than
I'll be needing. Anyone use this yet?
Lou



If there would be any one part of an aircraft that I would build that
should adhere to strict aviation practices, it would be the fuel
system, especially the fuel line and it's fittings. My two cents.

Neal

  #5  
Old October 1st 06, 02:47 PM posted to rec.aviation.homebuilt
jerry wass
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Posts: 180
Default Fuel line question

Lou wrote:
Anyone have a good reason why I shouldn't use 1/4" plumbing line
(fridge water line) for fuel lines?
It seems to have great connectors. Also holds a lot more pressure than
I'll be needing. Anyone use this yet?
Lou

NO!--even autos use 5/16" line---But I think You're talking
PLASTIC-(spitooie)----

use a #-6 Stainless steel Teflon lined hose from firewall fwd.--& slip
firesleeve over that!----my 4¢ worth.
Jerry
  #6  
Old October 9th 06, 02:46 PM posted to rec.aviation.homebuilt
Barnyard BOb
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Posts: 169
Default Fuel line question


On Sun, 01 Oct 2006 13:47:02 GMT, jerry wass
wrote:


NO!--even autos use 5/16" line---But I think You're talking
PLASTIC-(spitooie)----

use a #-6 Stainless steel Teflon lined hose from firewall fwd.--& slip
firesleeve over that!----my 4¢ worth.
Jerry


-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Speaking of AUTOS, Jerry....

Over 3 years ago, didn't you promise an auto conversion
that was going to put out 10 gazillion horsepower utilizing
a mere pocketful of cc's coupled to a miracle camshaft?

Since Lycoming is still in business, what gives? )


- Barnyard BOb -









  #7  
Old October 1st 06, 05:53 PM posted to rec.aviation.homebuilt
Stache
external usenet poster
 
Posts: 34
Default Fuel line question


Lou wrote:
Anyone have a good reason why I shouldn't use 1/4" plumbing line
(fridge water line) for fuel lines?
It seems to have great connectors. Also holds a lot more pressure than
I'll be needing. Anyone use this yet?
Lou


Answer: Go to http://www.ntsb.gov and search homebuilt accidents and
see how many are related to fuel issues. I have been on several
accidents with fuel problems. Having 1/4 ID can be a problem because
of flow and not pressure. Flow is what a engine requires and haveing
5/16 or 3/8 is a better option. The same goes for the vent lines. The
more bends and connections causes flow reductions and having hight
pressue will not solve this problem.

Stache

  #8  
Old October 1st 06, 07:24 PM posted to rec.aviation.homebuilt
Lou
external usenet poster
 
Posts: 403
Default Fuel line question



Answer: Go to http://www.ntsb.gov and search homebuilt accidents and
see how many are related to fuel issues. I have been on several
accidents with fuel problems. Having 1/4 ID can be a problem because
of flow and not pressure. Flow is what a engine requires and haveing
5/16 or 3/8 is a better option. The same goes for the vent lines. The
more bends and connections causes flow reductions and having hight
pressue will not solve this problem.

Stache


Thanks,
I was considering 3/8" anyway but I thought it would be a good idea
to ask. Also, I was going to go with aluminum. It's lightweight,
flexable, and should be easy to get the connections.
Lou

  #9  
Old October 1st 06, 11:26 PM posted to rec.aviation.homebuilt
Ebby
external usenet poster
 
Posts: 29
Default Fuel line question

I just started thinking about the fuel system for my project. I knew it was
3/8" but in what alloy?


"Lou" wrote in message
ups.com...


Answer: Go to http://www.ntsb.gov and search homebuilt accidents and
see how many are related to fuel issues. I have been on several
accidents with fuel problems. Having 1/4 ID can be a problem because
of flow and not pressure. Flow is what a engine requires and haveing
5/16 or 3/8 is a better option. The same goes for the vent lines. The
more bends and connections causes flow reductions and having hight
pressue will not solve this problem.

Stache


Thanks,
I was considering 3/8" anyway but I thought it would be a good idea
to ask. Also, I was going to go with aluminum. It's lightweight,
flexable, and should be easy to get the connections.
Lou



 




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