SPY290
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| posted on 14/3/04 at 08:46 PM |
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Fuel Lines
What type of material should be used for the fuel lines?
Could microbore copper pipe be used?
If copper can't be used, where can you get some and how much does it cost?
Oh! I see. Its like that is it!!!
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JoelP
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| posted on 14/3/04 at 08:55 PM |
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http://www.europaspares.com/
these guys do a big range of stuff. not looked but i remember that there were some fuel lines somewhere!
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madforfishing
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| posted on 14/3/04 at 09:09 PM |
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I have used 8mm Copper with short lengths of rubber fuel pipe at both ends, secured with jubillee clips for the fuel lines. The rubber fuel pipe is
quite expensive, so I wouldn't recommend using a huge lenght of it. I had a foot of it left after a repair on my VW Camper.
Camper owners beware - The inlet pipe to the carb perishes quite quickly - it's hot in there. Could have disasterous results. Worth checking
regularly.
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SeaBass
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| posted on 14/3/04 at 09:52 PM |
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We've used 8mm microbore as described, with short lengths of marked fuel hose at either end/for the electric fuel pump. I'd be careful
about using jubilee clips as SVA testers can pick up on this. I've used designated fuel line "smooth internal diameter" clips to be
on the safe side. But as everyone knows jubilee clips are just as good.
Cheers
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madforfishing
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| posted on 14/3/04 at 11:55 PM |
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Thanks, Seabass.
I'll change those clips then. Better that than fail SVA on something so minor.
TVM
Rick
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nick205
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| posted on 15/3/04 at 08:35 AM |
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Same here, I've used Ø8mm copper pipe and rubber fuel hose. Good tip on the type of clips used though!
Cheers
Nick
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zetec
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| posted on 15/3/04 at 08:56 AM |
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I soldered on an oliver to the copper pipe end if I was connecting to a rubber pipe. Gives a real tight fit and with a fuel pipe clip fitted should
never leak or "creep" apart.
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SPY290
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| posted on 15/3/04 at 08:59 PM |
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Would copper microbore 8mm pipe do for fuel injected engine? as in pressure?
Oh! I see. Its like that is it!!!
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craig1410
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| posted on 15/3/04 at 09:17 PM |
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Hi,
Copper pipe is fine for efi engines as the pressure is very low compared with the likes of brake pipes where copper pipes are also used.
One thing to reiterate from previous posts: Don't be tempted to use long sections of rubber hose for fuel lines, no matter how cheaply you can
source it, as it has been reported to allow petrol fumes through the rubber hose walls. This can lead to a build up of fuel fumes in the tunnel with
potential for fire or even explosion. For the rubber sections at the ends, try to make sure that it has the appropriate markings as the SVA inspector
will be looking for this. You can get EFI fuel hose in various sizes at any halfords store and it has all the right markings. You can also get those
fuel hose jubilee clips mentioned earlier.
Craig.
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stephen_gusterson
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| posted on 15/3/04 at 09:48 PM |
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I recon there would be a fair old gale blowing thro the tranny tunnel from the engine compartment when in motion...........
On the other hand, other posts have mentioned sludging cause dby poor quality fuel reacting with copper....
atb
steve
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flak monkey
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| posted on 15/3/04 at 09:52 PM |
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That would be high sulphur content fuels then....IIRC
Most of them are really low now though...stick to unleaded plus  makes a difference apparently.
David 
Sera
http://www.motosera.com
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craig1410
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| posted on 15/3/04 at 11:45 PM |
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Steve,
Yes but the problem is more likely to occur when the car is stationary. I wonder if the handbrake switch switches enough current with enough
inductance to produce a spark... Probably not I know but who wants petrol fumes when it can easily be avoided?
As for the sludge issue I too think that this only affects countries with very poor quality fuel. I'd think that the movement of the fuel will
erode any deposits before they even begin to collect, especially in a system with a fuel return circuit.
Cheers,
Craig.
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givemethebighammer
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| posted on 15/3/04 at 11:55 PM |
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I used copper microbore pipe for my transmission tunnel fuel pipe run. Also used a laser brake flaring tool (one with several sizes of die included)
to put a small flare on each end to ensure rubber hose does not come off.
Note: easier to bend this type of tube with a proper tube bending tool than by hand - tends to flatten when bent by hand
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Mave
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| posted on 16/3/04 at 06:59 PM |
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Ehh, probably a dumb question, but can someone show me a picture of a jubilee clip, so I know what NOT to use?
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JoelP
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| posted on 16/3/04 at 07:35 PM |
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you'll know one when you see one, its also called a worm drive clip. its the one with a series of grooves pressed into it, and a worm drive to
tighten it. The correct type is far less adjustable but the interior surface is smoother, and because it moves less is less likely to upset the pipe
its on.
this is the right one:
this is jubilee, technically wrong:
[Edited on 16/3/04 by JoelP]
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stephen_gusterson
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| posted on 16/3/04 at 07:36 PM |
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I eventually used hose all the way down my tunnel and also have a handbrake switch.
I will let you know if its a bad combination from my hospital bed if it dont work out
I dont think there would be enough vapour for a decent bang to.....
atb
steve
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stephen_gusterson
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| posted on 16/3/04 at 07:38 PM |
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A proper fuel pipe clip has a blank 'tongue' that slides under the screw up part, to make a better seal.
A std jubilee clip has the worm drive bit in direct contact with the pipe, and not being flexible, creates an uneven contact under the drive part.
atb
steve
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