Fuel Hose

Test Pilot · 05-11-17, 07:25 AM

Hello folks.
On my B2, I need a fuel line/hose that comes from the fuel tank to the filter. Problem is, it seems to be two different sizes at each end?
Is this correct and if so, does anyone have one I can purchase or a solution on how to make one up?
It's virtually all that's holding up getting her back on the road! Very frustrating.
We have a bit of garden hose in place a the moment for test purposes but a safe solution is needed.
Thanks for any help and advice, Paul.

Colin Aitchison · 05-11-17, 08:19 AM

My own 1987 B2 Audi Coupe Gt 2226cc KV is fuel injected and the pipe work runs from the outlet of the tank to the fuel pump to the accumulator then to the fuel filter, from what I can remember the tank outlet (12-13mm) is smaller than the fuel pump (15mm), I used a fuel pipe that was a snug fit on the tank and had to heat up the other end on to the fuel pump in a mug of hot water to soften it to let it expand on the the fuel pump, always use the correct type of fuel pipe, between tank and fuel pump can be any type of fuel pipe but after the pump the pressure is roundabout 6 Bar and you need to use pipe with running pressure of around 10-12 Bar, BE VERY CAREFUL WITH THE OUTLET AND RETURN PIPE SPOUT ON THE FUEL TANK THEY DO RUST AND SNAP OFF.

Hoyle · 06-11-17, 11:06 AM

I had the same myself on my 80q, the tank outlet and pump inlet being different diameters.

I went for SAE J30R9 100% ethanol safe hose, as todays fuels contain even more ethanol before and can actually eat through lesser standards of hose.

Feed and return hoses cost me circa £40 but worth it if they're going to last.

As a Typ 25 owner too, I know all to well about how perished fuel pipes can lead to burning your pride and joy in minutes - so many horror stories within the owners clubs.

Thankfully on our Audis, you'd hope the worst thing would be just dumping our fuel onto the road if a hose let go - better safe than sorry.

I got mine from brickwerks:

https://www.brickwerks.co.uk/catalog...Feco&.x=0&.y=0

Available at the above link in different diameters and I think they sell by the 0.5M.

Test Pilot · 06-11-17, 06:33 PM

Thanks for your help, I'll take a look.

06-11-17, 11:06 AM	#3
Hoyle 80q addict Classic Audi Club Member Join Date: Nov 2010 Location: North Wales Posts: 840	I had the same myself on my 80q, the tank outlet and pump inlet being different diameters. I went for SAE J30R9 100% ethanol safe hose, as todays fuels contain even more ethanol before and can actually eat through lesser standards of hose. Feed and return hoses cost me circa £40 but worth it if they're going to last. As a Typ 25 owner too, I know all to well about how perished fuel pipes can lead to burning your pride and joy in minutes - so many horror stories within the owners clubs. Thankfully on our Audis, you'd hope the worst thing would be just dumping our fuel onto the road if a hose let go - better safe than sorry. I got mine from brickwerks: https://www.brickwerks.co.uk/catalog...Feco&.x=0&.y=0 Available at the above link in different diameters and I think they sell by the 0.5M. __________________ My 80 Quattro thread

05-11-17, 08:19 AM	#2
Colin Aitchison Senior Member Classic Audi Club Member Join Date: Dec 2013 Location: Back home in Tillicoultry Posts: 1,308	My own 1987 B2 Audi Coupe Gt 2226cc KV is fuel injected and the pipe work runs from the outlet of the tank to the fuel pump to the accumulator then to the fuel filter, from what I can remember the tank outlet (12-13mm) is smaller than the fuel pump (15mm), I used a fuel pipe that was a snug fit on the tank and had to heat up the other end on to the fuel pump in a mug of hot water to soften it to let it expand on the the fuel pump, always use the correct type of fuel pipe, between tank and fuel pump can be any type of fuel pipe but after the pump the pressure is roundabout 6 Bar and you need to use pipe with running pressure of around 10-12 Bar, BE VERY CAREFUL WITH THE OUTLET AND RETURN PIPE SPOUT ON THE FUEL TANK THEY DO RUST AND SNAP OFF.

06-11-17, 06:33 PM	#4
Test Pilot Grown up member Classic Audi Club Member Join Date: Oct 2011 Location: Isle of Wight Posts: 82	Thanks for your help, I'll take a look.