Advice on fuel lines please

[dominicgg]

Hi there,

I have decided to get the fuel lines changed on my van as a precaution. I have read in the wiki that the best one to get is marked SAE J30 R9.

Where can I get this from (I see the wiki says not to use GSF) and how much will I need to order to do all the lines please?

Thanks.

Dom

[dominicgg]

Anyone able to help please?

Thanks.

Dom

[DevonAid]

Not sure what van/engine you have, but I recently replaced my petrol hoses using quality 'Gates' rubber hose from these guys http://www.cbsonline.co.uk/" onclick="window.open(this.href);return false;
They do the proper fuel clips as well which fit snugly round the hose. Very pleased with it all and much better than the rubbish GSF hose which lasted less than 2 years.
These size of hose would depend on the fuel system you have, I guess. You can search the catalogue for more details as well.
I have a 1.9DF and if you have the same I can look up the size I ordered.

[croc]

The petrol pumps have come with two different hose size connections. The two of you may not have the same...
I think there is 7.5 mm ID and a smaller one about 3.5, so check first. Change filter under and near tank while you're at it.

[dominicgg]

Great - thanks - will check it out

[dominicgg]

Ok so I'm a bit confused as the Wiki says 7mm hose:

https://club8090.co.uk/wiki/Pe ... re_warning" onclick="window.open(this.href);return false;

My engine is a Vege recon - 1.9 petrol DG. The van is an A reg 1983.

My local garage says they can only get 6mm or 8mm - the make is Gates.

I assume rubber ones are better than those covered with textile.

So the killer question is what size and where to source.

Thanks.

Dom

[1664]

Brickwerks do this and are normally spot on with stuff (although it does say for connection between header tanks so I don't know if suitable for anything else)

http://www.brickwerks.co.uk/index.php?p ... t&Itemid=6" onclick="window.open(this.href);return false;

[Oldjets]

You could also try Volksbolts:
http://www.volksbolts.com/eng.htm#fuel" onclick="window.open(this.href);return false;

Used their 5.6mm i.d. hose and stainless clamps for the fuel line for my 1990 1.9DG engine bay lines.
The clamps are well fitting and good quality. Or use original style crimp up clips if you can find them.
VW original size hose was 5.5mm i.d. for engine bay lines and 7mm for connection from tank to filter on my engine.
Breather lines are slightly diffrent again, 5.5 and braided, I think. Brickwerks were listing them.
I would not recommend using 1/4 inch i.d. line, the slight diffrence in size is enough to make leaks a distinct possibility. Most motor factors will cheerfully tell you that the 1/4 inch stuff is the same - it isn't. Just my opinion, but don't risk it, get the proper metric sized stuff.

Oldjets

[dominicgg]

Thanks for the reply oldjets.

Sorry but not very technical - so if I get 2m of this 5.5mm will this be ok (plus the proper clips)?

Or do I need more of a different diameter to complete the job - I want to replace all the fuel lines (or rather get my garage to do it!)

Thanks.

Dom

[Oldjets]

Thanks for the reply oldjets.

Sorry but not very technical - so if I get 2m of this 5.5mm will this be ok (plus the proper clips)?

Or do I need more of a different diameter to complete the job - I want to replace all the fuel lines (or rather get my garage to do it!)

Thanks.

Dom

Dom
Folowing info is correct for my van - 1990 with DG engine - ealier vans may be slightly different so double check if you can. Info can be found in the online VAG Cat which can be found at: http://translate.google.com.ar/translat ... =&ie=UTF-8" onclick="window.open(this.href);return false;
(You will have to be registered and have a sign in password. This site has not been working on and off for a while though, so may not be accepting new members). If you cannot view the online catalogue then asking your nearest friendly VW parts dept to print the page off usually works. My local VW van parts guy is very helpful and spent ages cross referencing part numbers for me to see if the various hose sizes were still available.

Anyway, back to the fuel lines: Short flexible piece from the tank outlet to the fuel filter is 7mm internal diameter (i.d.) with a 3mm wall thickness, from the filter to the hard plastic fuel line is 5.5mm i.d., 3mm wall thickness. The plastic fuel line then runs to the back of the van finishing just before the rear bulkhead. Flexible line then runs from plastic fuel line into engine compartment to the pump, then from pump to carb. Another one runs from carb to a non return valve, the other side of the bulkhead, and from that to a hard plastic return fuel line - all these engine bay flexibles are 5.5mm i.d. Feed and return hard plastic lines are 6mm outside diameter (o.d.). The hard plastic line then runs from the rear of van back to the tank but has an odd short flexible hose to join it to the tank inlet - 5.5mm enlarging to 7mm (looks like a special part no. 251201909A.

I haven't done this part on my van yet as I the special hose is obsolete (surprise, surprise). Will probably put another small filter in the line as they have dual diameter fittings.

Have left the hard plastic fuel lines in place on mine at the moment - they were available (at a price) a while back. It would be possible to replace them with flexible pipe entirely from front to back. Just over 2m for feed and about the same for return. Get under and double check with a tape. You would have to make sure it was well secured with rubber lined clips (lots of 'em) about every 400mm and well out of the way of hot or rotating parts.

Anyone got any advice on an alternative material for hard fuel lines? Kunifer or copper tubing? I haven't be able to find an off the shelf alternative yet.

Hope this is of use.

Oldjets

[dominicgg]

Hi oldjets,

Thanks ever so much for the detailed reply. Have taken the van off the road until I get this sorted and despearate to get campin again (and it is my daily drive too!) - so will just have to find somewhere not to source all this, unless anyone happens to know.

Cheers.

Dom

[Cruz]

Oldjets

PM sent regarding the obsolete part you are after