7.6mm 5/16' R9 FUEL INJECTION LINE HOSE SAE RUBBER PIPE | eBay
[Edited on 27/12/11 by andyfiggy2002]
im trying to find fuel hose that doesn't perish due to modern fuel having alcohol based additives, ive the cheap BS AU 108 hose, apparently Gates
sell SAE 30 R9 in the USA that is lined with Fluoroelastomer/Nitrile which withstands this new modern fuel but surely if were using the same fuel over
here we ought to be able to get the same sought of hose in the UK, where can i find this stuff as im fed up having to replace my hoses every couple of
years, surely i'm not the only person in the UK that has this problem, is this the stuff??
7.6mm 5/16' R9 FUEL INJECTION LINE HOSE SAE RUBBER PIPE | eBay
[Edited on 27/12/11 by andyfiggy2002]
I haven't had any trouble using the stuff from Hafords but the braided stuff from the shows rots quickly
quote:
Originally posted by andyfiggy2002
im trying to find fuel hose that doesn't perish due to modern fuel having alcohol based additives, ive the cheap BS AU 108 hose, apparently Gates sell SAE 30 R9 in the USA that is lined with Fluoroelastomer/Nitrile which withstands this new modern fuel but surely if were using the same fuel over here we ought to be able to get the same sought of hose in the UK, where can i find this stuff as im fed up having to replace my hoses every couple of years, surely i'm not the only person in the UK that has this problem, is this the stuff??
LINK
[Edited on 27/12/11 by andyfiggy2002]
Have a read of the post at the top of the engine & transmission section of the forum by David Jenkins titled Fuel pipe research, some useful
information there!
[Edited on 27/12/11 by rusty nuts]
I bought mine Nitrile stuff off ebay, cheaper and easy to find.....
Thanks to David Jenkins and his exhaustive research, this won't be happening to us again *shudders*
cheap fuel hose
yeh i read the other interesting thread, as regards Halfords they sell the ordinary type, not 73379 3D which is an ethanol resistant type?
goodyear
7.6mm 5/16' R9 FUEL INJECTION LINE HOSE SAE RUBBER PIPE | eBay
gates
pistonheads
[Edited on 28/12/11 by andyfiggy2002]
It should be illegal to sell the R6 nowadays.... Stuff thats been on a year in my car is hard and brittle.
wasn't aware of nitrile lined r9 stuff till i read the sticky at the top of page.
It's a problem that will affect kit cars and classic cars more than most, as it's stale fuel that does the worst damage - so if you lay up your car over the winter then I recommend that you take a close look at your rubber pipes in the spring. Or drain the system!
I have had to replace a few sections on my car over the last couple of years mainly at the back near the tank the length under the bonnet that has
always been there is still perfect but don't know where it came from.
A few years ago when unleaded was first introduced I had a leak on the pipe from the fuel tank on my tin top , when I went to the motor factors for a
replacement section they knew then that unleaded caused a problem and sold me some green coloured fuel pipe that was specially for unleaded but
haven't seen any since.
Paul
My previous posting on this subject, (post started by David Jenkins on 4/4/11):-
Since this problem was first posted I have kept a regular check on my hoses. I have checked them again today and they all look fine, no cracks, no
leaks and no smell. They have been in use since around 2004/5, so 6 or 7 years, so I thought it worth posting some details of the hose here.
It came with the new carburettor I bought from Southern Carburettors in April 2004 and he markings on the hose are:
Webcon UK BE 4012 WP Leaded/Unleaded 7,4 3Q01
[Edited on 29/12/11 by wicket]
I got some marine grade fuel hose, marked ISO 7840 (i think?)
hopefully will stand up better than normal car stuff. its fire resistant too.
any thoughts on this type of stuff?
not sure on pressure ratings and stuff though. i'm on carbs, not sure if its any good for injection.
edit, iso7840 rated up to 0.34 MPa which is 49psi? what does an injection system run at?
[Edited on 29/12/11 by blakep82]
ok guys the buzzwords are fluoroelastomer lined hose, ive written to webcon for clarification of their hose & the 7480 stuff on the goodyear site
makes no ref to this lining
LINK
the right stuff
the right stuff2
heres a useful video i found about hoses although barricade is a bit OTT as it can be used up to 100% ethanol
VIDEO
[Edited on 4/1/12 by andyfiggy2002]
I wish I could get hold of the stuff that's fitted to my ex-bike fuel pump... it''s a short length of grey, very flexible and soft hose
that has NEVER shown any sign of rotting. I've never seen anything like it elsewhere, and it's no good going to a bike shop to get some
more, as it's a specially moulded piece designed for a specific bike pump.
Thinking of bike shops - I did get offered some thin-wall fuel pipe in the local Honda dealership that was supposed to be up to modern standards, but
it didn't have any markings so I didn't want to risk it (it's a total PITA changing the flexible hoses in my car). Might be worth
investigating that route, as they often sell stuff that's totally different to what you find in car outlets.
Andy - you wouldn't believe how hard it is to find that proper fuel pipe. I even tried emailing Gates in the UK, and they didn't even know
what I was talking about - and I quoted the Gates' US part numbers!
The marine stuff is very good, but still not as good as R9. Its main claim to fame is that it can resist fire for quite a long time (e.g. an
engine-room fire on a boat) rather than resistance to fuel.
What I REALLY wanted was some Gates hose I found on their US site - fluoro lined for ethanol, but thin-walled for use with carbs. No way I can find
that in Europe... 
[Edited on 4/1/12 by David Jenkins]
I used some hydraulic hose on my car for the link from the swirl pot to the inlet of the fuel pump, it is 15mm bore and has never perished so maybe
hydraulic hose may be worth looking at.
Paul
quote:
Originally posted by David Jenkins
What I REALLY wanted was some Gates hose I found on their US site - fluoro lined for ethanol, but thin-walled for use with carbs. No way I can find that in Europe...
[Edited on 4/1/12 by David Jenkins]
yeh, SAE30 R9 or DIN 73379-3D lined with FKM fluoroelastomer is impossible to find in the UK as most venders who say they sell it cant verify it has
SAE 30 R9 or 73379-3D stamped on the side.
Goodyear, Gates & Dupont sell it in the USA so its strange how they dont want to conquer europe??
Cohline in Germany who supply BMW say they sell it but again with no suitable description on the hose im dubious.
Car Builder Solutions say they might have some by the end of the month so fingers crossed, all you guys thinking SAE30 R7 or DIN 73379-2 nitrile hose
is OK think again, look at the link below
link
quote:
Originally posted by andyfiggy2002
yeh, SAE30 R9 or DIN 73379-3D lined with FKM fluoroelastomer is impossible to find in the UK as most venders who say they sell it cant verify it has SAE 30 R9 or 73379-3D stamped on the side.
Goodyear, Gates & Dupont sell it in the USA so its strange how they dont want to conquer europe??
Cohline in Germany who supply BMW say they sell it but again with no suitable description on the hose im dubious.
Car Builder Solutions say they might have some by the end of the month so fingers crossed, all you guys thinking SAE30 R7 or DIN 73379-2 nitrile hose is OK think again, look at the link below
link
Advanced Fluid Solutions sell Cohline hose so i spoke to Cohline who told me their product type 2240 was the one i needed, i found 2240 is 77339-3E
or bio-diesel hose as seen on the 3rd page of this link, so can i only assume 3D is SAE 30R9 bio-petrol & 3E is SAE 30 R9 bio-diesel? 3D uses FKM
as a liner as per gates, goodyear & dupont, 3E uses FPM/ ECO.
link
as 3D seems unobtainable in europe & at only £4.45/m i think im going to say sod this & just go for it like you andrew
[Edited on 11/1/12 by andyfiggy2002]
quote:
Originally posted by andyfiggy2002
Advanced Fluid Solutions sell Cohline hose so i spoke to Cohline who told me their product type 2240 was the one i needed, i found 2240 is 77339-3E or bio-diesel hose as seen on the 3rd page of this link, so can i only assume 3D is SAE 30R9 bio-petrol & 3E is SAE 30 R9 bio-diesel? 3D uses FKM as a liner as per gates, goodyear & dupont, 3E uses FPM/ ECO.
link
as 3D seems unobtainable in europe & at only £4.45/m i think im going to say sod this & just go for it like you andrew
[Edited on 11/1/12 by andyfiggy2002]
great, would you be able to take a photo end on of this blue protective lining that you mentioned as this seems to be the crucial lining that protects the outer rubber from the ethanol?
I have bought this for my fuel hoses:
8mm 5/16' Silicone Fuel & Oil Hose Flouro 1 Metre Blue | eBay
quote:
Fluoro Lined Silicone Hoses ensure hoses can be in contact with Fuel & Oil unlike standard Silicone Hoses. Designed for direct transfer of petrol and oil. Made with a fluorsilicone liner and 3 polyester outer for strength and flexibility. Not for continuous immersion in fuel or oil.
isnt SAE30 R10 for continuous immersion?
quote:
Originally posted by MRLuke
It has an inner fluoro lining but that last little bit is slightly concerning about not being suitable for continuous immersion. I dont if thats just because the outer wall is not fuel or resistant so it cant go inside a fuel tank for instance, or if the pipes should not have fuel inside them continuously.
Not all fluoro linings are blue. The stuff I've got is lined, but the lining is black - in a black outer - useful...
R10 is the one for continuous immersion, but there's no harm in using it in the normal way.
This subject is very close to my heart. In July 2009 the braided steel fuel hoses I had fitted in 2005 having bought them from a well known trailer
that visits Kit Car shows failed (as far as I can tell) instantly resulting in a major fuel leak that soaked the carpets inside the car, basically I
was sitting in a petrol bomb. The company said they had never heard of that before and offered to replace them, I declined. I bought some hose from
another national supplier which I think is DIN 73379 spec, thats equivalent to R7 but since that is coming up 3 years old and I don't want to die
in a fireball just yet I decided some time ago to get some of the R9 hose.
Not as easy as it sounds but got some from Advanced Fluid Solutions in 5.6mm and 7.6mm sizes, still not found any 12mm yet.
Beware, I have been advised that although R10 has the correct liner since it does not have the correct rubber on the outside that provides protection
from the atmosphere it will degrade from the outside in, another undesirable feature.
With regards to the Cohline link above I have investigated the 2134 hose and on the sheet in the link in an earlier post it shows it as DIN 73379 2B
spec. The Goodyear hose spec sheet for this hose in the link below clearly identified it as R7 and I don't want anything less than R9 in my car
this time so take care.
http://www.goodyearep.com/productsDetail.aspx?id=6088
not sure why your looking at 2134 which isn't suitable for pump fuel with ethanol? its the 2240 stuff you want, 77339-2 is R7, 77339-3 is R9,
anyway i'm buying the R9 stuff from advanced fluid solutions as its seems to have all the correct writing on the side, ive also emailed dept of
transport ref. fire safety hazard with this 10% ethanol eating ordinary hose but as i've had no reply i assume they're not interested, they
need to publisice this, isn't it funny how the health & safety brigade will stop kids playing conkers but driving them about in a potential
fire coffin with fuel leaking over a hot engine is acceptable
[Edited on 15/1/12 by andyfiggy2002]
Does anyone have a source for 12mm hose? Just discovered this thread and I have non-marked cloth covered 12mm hose from tank, through pre-filter to high pressure pump and 7.6mm R6 in the engine bay.
quote:
Originally posted by andyfiggy2002
not sure why your looking at 2134 which isn't suitable for pump fuel with ethanol? its the 2240 stuff you want, 77339-2 is R7, 77339-3 is R9
[Edited on 15/1/12 by andyfiggy2002]
no ones sells the 3D stuff over here, the americans are the only ones who make it but they wont sell it to us europeans for some reason.
read this tech bulletin below for motorised gliders if you can translate it in google translate, also remember gliders don't use diesel engines
due to their weight? it says due to bio fuel replace the old rubber with the 3E stuff which is suitable for unleaded/leaded,
link
got the SAE 30R9 stamped stuff from Advanced Fluid Solutions & compared it with some unused ordinary R7 hose i have spare, must admit it looks suspiciously the same to me, i smell a rat!!!!
If you want to use braided stuff you need to be using the type with a PTFE liner (even if you're using just pure gasoline). Also, be wary of the
lines that have a white ptfe liner, this is usually indicitive of a NON-conductive core. As fuel passes through PTFE it builds up a charge unless
it's grounded.... You can imagine why you'd want to avoid that.
Also, make sure your fuel injectors and pump can support fluorocarbon fuels.
have you tried finding the stuff with a liner? if you find it be sure to let me know as you cant buy it anywhere & the ones that say there selling
it in the UK aren't selling the genuine article
[Edited on 20/1/12 by andyfiggy2002]