Petrol hose question

[Discopotatoes]

Im about to replace my petrol hose and thought is there any good reason not to use SAE j30 r9 throughout and eliminate half a dozen connections to the copper pipe?
my thinking is the return fuel line is rubber and so are the bits near the hot end, if the return fits between the chassis and body wouldn't the flow?

[Alan461]

This is what I did, also routed the hoses along the top rails to reduce hose length.
Just keep the cable ties snug but not tight so the hose stays in shape.
there's enough clearance between the chassis and tub.

[Discopotatoes]

Alan461 said:

This is what I did, also routed the hoses along the top rails to reduce hose length.
Just keep the cable ties snug but not tight so the hose stays in shape.
there's enough clearance between the chassis and tub.

Great thanks how many metres did you use?

[caduceus]

Quote from the Southways 'recall' thread:

Kitchski said:

Just to update this:

• So far we've have around 7 or 8 affected cars (including my own).
• The hose affected has only been the SAE J30R9 hose, which is unbranded and uses block capital white lettering.
• We've had an isolated case of a hose marked '400-series' fail, which was fitted to a single car. This is the only hose that has actually weeped any fuel and was only fitted to one car (and has now been rectified)
• One of the hoses was stamped 10/2014, yet had failed already.
• They're failing on the outside of swept curves, and around the bulges caused by the flares on the end of the copper/Kunifer pipes too.
• When they have fuel in them, they feel soft. Drain them and remove them, and they go rock hard.
• I've seen this type of hose for sale in Halfords, Euro Car Parts and on various online supplier's websites, as well as eBay and the like.
• We're now using Continental, Goodyear or Gates Barricade, the later of which we're hoping to set up a supply for.
• We *think* we've addressed all the affected cars now, but please double check if you're not sure, or even if you've done your hoses recently - one of our customers happened to mention he'd done it, and found his car was affected. He was only in for a service!
• The hose isn't failing internally, or causing any contamination of the fuel system. It's the inner membrane absorbing the Ethanol (we think) which is then drying out the outer membrane, causing the fracturing.

[Discopotatoes]

caduceus said:

Quote from the Southways 'recall' thread:

Kitchski said:

Just to update this:

• So far we've have around 7 or 8 affected cars (including my own).
• The hose affected has only been the SAE J30R9 hose, which is unbranded and uses block capital white lettering.
• We've had an isolated case of a hose marked '400-series' fail, which was fitted to a single car. This is the only hose that has actually weeped any fuel and was only fitted to one car (and has now been rectified)
• One of the hoses was stamped 10/2014, yet had failed already.
• They're failing on the outside of swept curves, and around the bulges caused by the flares on the end of the copper/Kunifer pipes too.
• When they have fuel in them, they feel soft. Drain them and remove them, and they go rock hard.
• I've seen this type of hose for sale in Halfords, Euro Car Parts and on various online supplier's websites, as well as eBay and the like.
• We're now using Continental, Goodyear or Gates Barricade, the later of which we're hoping to set up a supply for.
• We *think* we've addressed all the affected cars now, but please double check if you're not sure, or even if you've done your hoses recently - one of our customers happened to mention he'd done it, and found his car was affected. He was only in for a service!
• The hose isn't failing internally, or causing any contamination of the fuel system. It's the inner membrane absorbing the Ethanol (we think) which is then drying out the outer membrane, causing the fracturing.

top man cheers

[caduceus]

No problem.

Just to add - I have just renewed all my brake and fuel lines using the copper/nickel (Kunifer) stuff. It is what the company that made all the lines for TVR (Automec) , uses now.
IMO although a bit of a PITA, the solid stuff will last longer and be safer than running all the fuel in hose. But I'm no expert in the field of rubber, apart from a Wednesday evening when I don my gimp suit and head into London But I'm sure one will be along sooner or later and say it's fine to use such and such rubber hose for the entire system.
Just my tuppence worth.

[Discopotatoes]

caduceus said:

No problem.

Just to add - I have just renewed all my brake and fuel lines using the copper/nickel (Kunifer) stuff. It is what the company that made all the lines for TVR (Automec) , uses now.
IMO although a bit of a PITA, the solid stuff will last longer and be safer than running all the fuel in hose. But I'm no expert in the field of rubber, apart from a Wednesday evening when I don my gimp suit and head into London But I'm sure one will be along sooner or later and say it's fine to use such and such rubber hose for the entire system.
Just my tuppence worth.

the system is full of joins which I want to eliminate, as for lasting longer, maybe but there is still loads of rubber that would need changing and all those potential leaks from the joins which are exposed to the elements, I have a cunning plan which I will share in due course

[neal1980]

I used an8 hose and connectors. Cost a lot more but much safer and looks better.

what fuel setup are you going to use ??

[Discopotatoes]

neal1980 said:

I used an8 hose and connectors. Cost a lot more but much safer and looks better.

what fuel setup are you going to use ??

I'm looking at a submerged 380lph pump / swirl pot set up in the boot. To feed my 65lb RC racing injectors
The main reason behind my thinking is every thing stays clean and rust free and the scrotes who caused me to break down on my last road trip to France won't be able to syphon my fuel

Edited by Discopotatoes on Saturday 17th September 15:02

[Discopotatoes]

neal1980 said:

I used an8 hose and connectors. Cost a lot more but much safer and looks better.

what fuel setup are you going to use ??

Neal did you run an-8 hose to the fuel pump and return to the tank? Did it fit in its original location along the chassis rails between the body?

[Loubaruch]

This may help:

http://www.bertram-hill.com/replacing-the-fuel-lin...

If you are not using the carbon cannister and omitting the feed to it from the tank there should be plenty of room. From memory the Cohline(Mercedes OEM) fuel hose was 13mm OD. I had to use the original copper pipe on the nearside for the cannister feed as there was not enough room for two 13mm hoses.