I must be a lucky guy. I've been running bio for 2 1/2 yrs and 25K miles and still my fuel lines are good. Don't know for sure what the PO put on it (he had done lots of upgrades) but I know he didn't run (or plan to run) bio or WVO. Will bookmark the info presented above for the day that they leak.

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John Schroader
bio burnin' 83 300D, '83 300 SD, '79 240D
"I've never met a man who was good at making excuses who was good at anything else" Ben Franklin
"You cannot permanently help a man by doing for him what he could and should do for himself" Abraham Lincoln

I am assuming you are talking about trying to change the hose that is banded to the screw on piece.

You can cut the old hose band off with a grinder/saw. I used a dremel. That exposes a barb to which you can replace you choice of hose with. You will probably want to take it off of the car for this part of the process. Then you will just need a new hose clamp instead of the now cut off band.

Then I put the Goodyear J30R9 with the blue lining. If you are at Autozone (cheapest I could find) make sure it has the blue lining. They call it 'fuel injection' hose. They don't sell much of it and I had to call around to find a store with the right size in stock.

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2009 ML320 Bluetec
1985 300CD
1981 300TD

Past Mercedes
1979 300TD
1982 300TD
2000 E320 4Matic Wagon
1998 E430
1984 300SD
1980 300SD

What was the inside diameter of the hose?
I also did the above with regular fuel hose; however, I do not remember what size I used.

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84 300D, 82 Volvo 244Gl Diesel

I do sell the injector return lines, but WINGAS is talking about the 5/16 inch lines that go from the steel lines to the lift pump, thermostat, heat exchager, filter, to the IP, and from the filter to the steel return line. Some of those are not regular lines, dependind on the model. They are WAY too expensive to buy in 100% viton. You can get them in viton lined. www.jcwhitney.com.

I also sell replacement o-rings in viton (like the one on the tank screen.)

www.fryerpower.com

-Jim

__________________
1995 S350D, Green with black leather interior.
Bought January 2008 w/ 233,xxx miles.
I did 22,000 miles during the first year of ownership.

oops, my bad, I picked a bad Week to quit sniffing glue....

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91 350SD
14 F150 Eco
19 Fusion Hybrid
11 GT500

Naw, no big shakes. Jim is a great source of everything Viton we need, sans the main fuel lines. I want to make sure this is an informative thread for all of us.

I might just order the JC whitney lines. I havent ordered from them since I bought black seat covers for my rotted out 66 Biscayne winter rat in 1976!

Jim, I couldnt find the hose thru their online catalog, but I know you sent me a link directly to that item. Do you still have it? I will also check the local AZo on availablility and pricing.

http://www.jcwhitney.com/autoparts/ItemBrowse/c-10101/s-10101/p-100000180969/mediaCode-ZX/appId-100000180969/Pr-p_CATENTRY_ID:100000180969

Viton is a trademark name. The generic name for it is Fluorelastomer.

-Jim

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1995 S350D, Green with black leather interior.
Bought January 2008 w/ 233,xxx miles.
I did 22,000 miles during the first year of ownership.

Thank you Mr. Davis! Still over $5 a foot, eh?

Diesel 911, its 5/16" I.D.

The closest thing at McMaster is the 100% viton lines.

7/16" OD
5/16" (.3125") Inside Dia.
1/16" (.0625") Wall thickness (Twice as thick as the McMaster part, but it is needed since the walls are all Viton.)

Opaque Black Ozone-Resistant, UV-Resistant 75A (Firm) High-Temperature Firm Viton Rubber Tubing
5119K14
1-49 Ft. $6.10 Ft
50 or more $4.88 Ft


Opaque Black Ozone-Resistant, UV-Resistant 60A (Soft) High-Temperature Soft Viton Rubber Tubing
5119K44
1-49 Ft. $6.83 Ft
50 or more $5.46 Ft

Opaque Green Ozone-Resistant, UV-Resistant 75A (Firm) High-Temperature Firm Viton Rubber Tubing
5119K881
1-49 Ft. $6.10 Ft
50 or more $4.88 Ft

Opaque Brown Ozone-Resistant, UV-Resistant 75A (Firm) High-Temperature Firm Viton Rubber Tubing
5119K884
1-49 Ft. $6.10 Ft
50 or more $4.88 Ft

There must be a lower price somewhere! I'm afraid that even if I find it I will have to buy a 100 Ft roll to get the lower price. Then it will still end up costing you guys the same as buying directly from JcWhitney or McMaster. On top of that, I don't know the lengths that each model needs. Add in that most of us modify our fuel system along the way and making a kit for the lines is almost futile! Better to make kits for the things that are set in stone and buying in quantity makes sense, like the o-rings and injector return lines, and let the rest of hose sales go to McMaster or JcWhitney.

-Jim

-Jim

__________________
1995 S350D, Green with black leather interior.
Bought January 2008 w/ 233,xxx miles.
I did 22,000 miles during the first year of ownership.

I presume the 1/4" diameter will work on the return lines?

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1974 240D 3.0L 4(M) - 250K -OM617.910 + 300D FW + Rajay turbo power!
1977 6.9 3(A) - 84k

I buy 5/16 Multi purpose fuel line at NAPA.Its alcohol safe and rated 300 degrees.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran, deutschland deutschland uber alles uber alles in der welt

JaDavis - You don't want 1/16" wall hose. It's far to flimsy for underneath a car. You want the 1/8" wall. Which unfortunetly costs much more. $15/foot if you order less than 50ft. No matter how you cut is viton(Flourelastomer) is expensive. I worked for GreaseWorks and I spent quite a bit of time trying to find viton for cheaper, but it just isn't. The cheapest way to go is to use the 30R9 hose. It's still more expensive, but far cheaper than solid viton.

diametricalbenz - you want 5/16 for all the hoses except the injector return lines. 1/4" will be really hard to get on. Especially if you buy the 30R9 hose it doesn't stretch at all. Viton will stretch quite a bit.

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That explains the price difference I remembered. When I looked at it last year I remember thinking it was way too freakin expensive to go with 100% viton, which is why I ended up with viton lined as the solution. I got myself confused last week when the lined and 100% stuff came up so close. I was looking at the thin wall stuff, not the $15 a foot good stuff.

Anyway, use the lined stuff. It works fine and lasts a long time.

-Jim

__________________
1995 S350D, Green with black leather interior.
Bought January 2008 w/ 233,xxx miles.
I did 22,000 miles during the first year of ownership.

From what I have found you can't find viton or viton lined return line locally.

__________________
1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine

I can personally vouch for the Neon Yellow Tygon lines. I put them on a couple Passat TDI's I had a few years ago. I drove the cars around for 4 years with zero issues. It does not get soft when hot like some of the others and can handle biodiesel.

The cool thing is that most local Ace Hardware stores and lawnmower shops carry the stuff.

McMaster Carr is a little high but they have everything. I have bought lots of stuff there for my TDI's and the Cummins powered trucks I used to have. I can remember replacing all the braided and color coded vacuum lines with thick walled silicone instead of that cloth braid stuff. Much better quality than OEM.