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TheFop
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Joined: February 03, 2014
Posts: 302
Location: Auckland - New Zealand
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 Posted: Sat Aug 23, 2014 1:18 am Post subject: Fuel Line Replacement - Kunifer |
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Hi Folks, for the last 2 weeks I've been trying to find a replacement fuel line for my car to go down through the tunnel, sadly being a small Island with very few humans we don't have much choice of products.
I'd read somewhere that the replacement fuel line is ideally stainless steel (although I read its a total nightmare to work with) or copper coated mild steel, sadly I can't find either anywhere and I've tried big time. However a couple of places I spoke with mentioned using Cunifer brake line and from a bit of reading this isn't unusual.
Has anyone else used Kunifer long term and what are your thoughts, for me it appears OK as its a steel - copper - nickel alloy so shouldn't react to fuel the same way as pure copper or become brittle and is very workable, apparently it's been used in the UK for many many years and even may have been used on production VWs.
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Last edited by TheFop on Mon Aug 25, 2014 10:31 pm; edited 1 time in total |
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jpjohns
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Joined: May 03, 2014
Posts: 882
Location: Harrisonburg, VA
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| Posted: Sat Aug 23, 2014 7:33 pm Post subject: |
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There are a few posts around that the owners just used braided fuel tubing straight from the tank and through the tunnel. They used the OEM fuel line from there that runs through the firewall to the carb.
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DorianL
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Joined: June 06, 2013
Posts: 717
Location: Belgium
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| Posted: Mon Aug 25, 2014 1:57 am Post subject: |
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Cunifer? I thought that was ancient Sumerian writing?
I used steel braided hose through the tunnel. You can get a wide array of barbs and fittings. Are there speedshops over there that might carry AN-6 hose? |
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John Moxon 
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Joined: March 07, 2004
Posts: 13955
Location: Southampton U.K.
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c21darrel
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Joined: January 22, 2009
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Location: San Dimas
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TheFop
Samba Member
Joined: February 03, 2014
Posts: 302
Location: Auckland - New Zealand
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| Posted: Mon Aug 25, 2014 11:58 am Post subject: |
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| John Moxon wrote: |
| DorianL wrote: |
I used steel braided hose through the tunnel. You can get a wide array of barbs and fittings. Are there speedshops over there that might carry AN-6 hose? |
Do you know what the predicted life expectancy for that type of hose. I know oil line hose has a pretty short one but that is carrying hot oil. |
I must admit I'm not quite sure of the need or durability of braided line for this, in engine bays etc its good as it looks nice and is easy to deal with but through a tunnel I'm not so sure, I thought braided was for higher pressure applications to prevent hose expansion and ultimate failure, I don't see fuel line needing this.
The Kunifer works out at $150nz for 25ft (7.6m for those of us outside of the US) so will do my car, KiwiGhia68's and hopefully have some spare, its not cheap but should be good long term.
I've heard a few of horror stories about using mild steel and the reason I'm replacing mine is that the original steel corroded away years ago and had been replaced with more mild steel which had also corroded badly so I don't think mild steel is for me especially in this climate.
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Rusty 61 RHD Karmann Ghia Coupe - Resto in progress....slowly
Stock 69 LHD Karmann Ghia Coupe - Driver
67 New Zealand Spec Beetle - Being rebuilt
63 New Zealand Spec Beetle - Going Baja!
86 T25 Westfalia - Family Fun car |
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TheFop
Samba Member
Joined: February 03, 2014
Posts: 302
Location: Auckland - New Zealand
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| Posted: Mon Aug 25, 2014 10:34 pm Post subject: |
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I managed to get my grubby hands on 3 meters of Kunifer today at the cost of $50, it was the last I could find without getting some sent from another city and I had to get mine of the Auto supplies workshop roll.
I was offered "Bundy" which is plain old steel but they mentioned that its a pig to work unless you have the right tools....which I don't so Kunifer was the clear winner.
First impressions are very positive, its very workable and will go into the tunnel very easily, I'll update when I get it in on the weekend.
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Rusty 61 RHD Karmann Ghia Coupe - Resto in progress....slowly
Stock 69 LHD Karmann Ghia Coupe - Driver
67 New Zealand Spec Beetle - Being rebuilt
63 New Zealand Spec Beetle - Going Baja!
86 T25 Westfalia - Family Fun car |
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DorianL
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Joined: June 06, 2013
Posts: 717
Location: Belgium
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| Posted: Tue Aug 26, 2014 2:44 am Post subject: |
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| Awesomeness |
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NOVA Airhead
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Joined: July 20, 2005
Posts: 5221
Location: Richmond, VA
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| Posted: Tue Aug 26, 2014 7:20 am Post subject: |
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I have used brake line in the past for fuel line - not sure of the brand.
It worked fine. Brake fluid seems to be far more corrosive than gasoline so I would think it would hold up well for fuel line.
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