Paul Turner
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| posted on 15/1/12 at 09:50 AM |
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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
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andyfiggy2002
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| posted on 15/1/12 at 11:13 AM |
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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]
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se7ensport
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| posted on 15/1/12 at 12:08 PM |
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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.
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Paul Turner
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| posted on 15/1/12 at 02:08 PM |
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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]
I was looking at 2134 for one simple reason, that is what Carlton Hydraulics told me I needed. The 2240 0n the Carlton site is DIN 73379 3E spec which
is identified as being for Bio Diesel not pump petrol.
I agree that DIN 73379 3D is the R9 stuff but COHLINE/Carlton don't appear to do it.
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andyfiggy2002
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| posted on 15/1/12 at 03:44 PM |
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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
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andyfiggy2002
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| posted on 19/1/12 at 10:37 PM |
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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!!!!
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ffrgtm
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| posted on 20/1/12 at 10:11 AM |
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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.
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andyfiggy2002
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| posted on 20/1/12 at 01:08 PM |
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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]
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