W123 Fuel Hose b/w Injectors - PeachParts Mercedes-Benz Forum

saludayaker · #1 05-18-2010, 09:18 AM

Ok so I'm about to order some fuel hose that goes b/w the injectors b/c mine are looking pretty shabby. Does anyone have any advice as to which kind/brand/size is best? I'm looking here and I didn't realize there was going to be so many choices!
EDIT-I guess it doesn't like that link...but you know what I'm talking about right?
Also, how much do you think I need? I'm guessing a meter but y'all are the experts. Thanks!

vstech · #2 05-18-2010, 09:25 AM

a meter should suffice.
it's all easy. have a pair of needle nose pliers handy to pull off the old lines. I pinch them on the sides, and lift. when one breaks, I pinch it off from the sides. NEVER GRAB IT WHERE YOU CAN CRUSH OR NICK THE NIPPLE!!!

saludayaker · #3 05-18-2010, 09:28 AM

Well what's a good line to use? I was looking at ******** and found like a dozen different ones. Is it called the looping return line? Like this one here?
http://catalog.peachparts.com/ShopByVehicle.epc?q=&yearid=1983@@1983&makeid=63@@MERCEDES+BENZ@@X&modelid=6191%3AMBC%7C1504%3AED%7C10000135@@300D&catid=240737@@Fuel+Delivery&subcatid=240792@@Fuel+Hose&applicationid=W0133-1643508&mode=PA

toomany MBZ · #4 05-18-2010, 10:09 AM

^ Yeah, that's what you use.

saludayaker · #5 05-18-2010, 10:49 AM

What are the dimensions I should be using? The hose I'm looking at is 3.2mm ID x 1.5mm thick but I read that it should actually be 3.5mm ID and 2mm thick. Which is the right one?

toomany MBZ · #6 05-18-2010, 10:57 AM

3.2mm is fine. I had some 2.8mm stuff that worked, but was difficult to remove when the time came.
I have no experience with 3.5mm.

fdanielson · #7 05-18-2010, 12:13 PM

It's 1/8 inch fuel line. Even though the authentic German cloth braided stuff is nice to look at any fuel rated 1/8 inch hose will work. I bought a few feet at my friendly neighborhood NAPA store a year or two ago and have been leak free since. Just don't use vacuum line or anything else not rated for fuel.

rrgrassi · #8 05-18-2010, 12:24 PM

Order the kit from this site. You will also need to replace the end plug on the #5 injector.

saludayaker · #9 05-18-2010, 12:28 PM

What's the end plug? I mean I know what it is but is it an orderable part? Can I reuse the one that's under my hood now?

Diesel911 · #10 05-18-2010, 01:07 PM

Where to buy fuel return hose VW RAbbit
http://www.peachparts.com/shopforum/showthread.php?t=238219&highlight=Rabbit
The Thread with the part numbers
http://www.peachparts.com/shopforum/showthread.php?t=210922&highlight=return+line+part+number

If your end plug has a steel insert you can reuse it. If an all rubber plug you can simply replace it by plugging a short section of hose with a fine threaded maching screw with some Silicone Sealant on the threads.

toomany MBZ · #11 05-18-2010, 02:09 PM

Quote:

Originally Posted by saludayaker

What's the end plug? I mean I know what it is but is it an orderable part? Can I reuse the one that's under my hood now?

The pics shows the part number. The two on the right are the plugs, the one on the left is just a length of line with a rivet stuck in the end, either will work.

fdanielson · #12 05-19-2010, 10:03 PM

Quote:

Originally Posted by saludayaker

What's the end plug? I mean I know what it is but is it an orderable part? Can I reuse the one that's under my hood now?

The last injector will have a short piece of hose with a plug stuck in it. The plug is a non-wear item so if you can get it out of the hose without nicking it you'll be fine. The reason they get replaced is because it's easy to damage the plug while taking it out and a good scratch in the plug will allow fuel to leak past.