RobertD
Moderator
Registered: 01/04/05
Posts: 586
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Reply with quote | #1 |
Below you will find some information regarding fuel line hose that is compatible with biodiesel and high biodiesel blends.
Synthetic fluro-elastomer hoses and fluro-elastomer lined hoses will work.
(originally posted by Veggie ranger)
If you are looking for viton hose, you might want to consider purchasing some of the new viton-lined fuel injection hose. It has the durability of regular hose and the viton lining keeps the alcohol from degrading the hose prematurely. (it's actually designated as having a "fluoro-elastomer" lining but I think the only one in use right now is viton)
Look for hose labeled "SAE 30r9" It is usually printed on the hose itself. Here are a few of the brands I've found at local retailers:
Pep Boys: Dayco Gen II - they stock 5/16"ID and 3/8"ID. They will special order 1/4"ID for Suburban owners ($4.89/ft)
Autozone: Goodyear - no special label other than the SAE 30r9 designation and the telltale blue lining visible at the end of the hose. They stock 5/16"ID and 3/8"ID and say they can't special order the 1/4"ID. ($4/ft)
Gates also makes a "GatesXL" fuel injection hose that's SAE 30r9 but I haven't found it locally yet.
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For the injector return lines on VW TDI and Mercedes diesels...I have found the 1/8" id Viton Hose from McMaster-Carr to work well.
http://www.mcmaster.com part # 5119K31 (black).
Also available in Green or Brown
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For those looking for Viton fuel line replacement kits...check out:
The store at Greaseworks.org
http://www.greaseworks.org/index.php?module=pncommerce&func=categoryview&CategoryID=11
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beerdavis
Registered: 04/26/05
Posts: 9
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Reply with quote | #2 |
Has anyone here actually had their fuel line leak/weep because of biodiesel? I have been using biodiesel off and on for years in my 1983 300TD (now I only use biodiesel since I can use my credit card) and never had a problem.
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RobertD
Moderator
Registered: 01/04/05
Posts: 586
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Reply with quote | #3 |
I have not had any issues with factory fuel lines..but I did melt some lines used in a vegoil conversion. The hose was the cheapo stuff from J.C.Whitney.
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beerdavis
Registered: 04/26/05
Posts: 9
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Reply with quote | #4 |
Thanks Rob. It is nice to know that I do not have to worry about replacing the fuel lines in my wagon anytime soon. |
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RobertD
Moderator
Registered: 01/04/05
Posts: 586
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damianfrancis
Registered: 03/31/06
Posts: 17
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Reply with quote | #6 |
I have had lines in several places fall apart.
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VeggieRanger
Registered: 05/08/05
Posts: 224
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Reply with quote | #7 |
This is what the stock fuel lines look like on a '97 GMC Suburban 6.5 Turbo Diesel after approximately 1,500 gallons of B100.
Don't be frightened. I replaced all of the lines with viton-lined hose and I haven't noticed any hose deterioration at all. (they look brand new)
-Veggie Ranger
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'00 Ford Excursion Ltd Turbo Diesel
'87 Mitsubishi Montero 2.3 Turbo Diesel project
'97 Suburban Diesel
'95 Dodge RAM 2500 Ext. cab Cummins TD
'99 VW Jetta TDIs x 2
'98 Porsche Boxster EV AC/Lion Prototype
'00 Club Car 48V Electric daily driver
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nikbristow
Registered: 05/09/05
Posts: 21
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Reply with quote | #8 |
I've had the return lines on two '98 VWs spring leaks with stock hoses. Viton replacements and tiny fuel injection clamps solved the problem. I've also had three different IP seals leak, two Quantity Adjuster seals on a '98 and most recently the pump head seal on my '02 Golf. The Quantity adjuster seals were super easy to replace, the head seal took several hours. Apparently these will eventually leak even on petroleum diesel. I replaced the pump head seal with a Viton seal from Dieselgeek so hopefully I won't have to replace that one again.
I should point out that all of these leaks were with only a few months of running B100. I don't think biodiesel was the sole cause of the leaks AT ALL, but it may have hastened the demise of the aging seals.
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