|
|
|
#1
|
|||
|
|||
Replacing Fuel Lines near the tank
I am changing out the soft fuel lines near the tank with biodiesel compatible ones (5/16" SAE 30R9 - viton lined). There are 3 lines back there... 1) Fuel Delivery (attached to fitting that is then screwed into the tank screen), then there are two lines next to each other 2) Return Line and 3) Vent line. What is odd is that the hard lines for #3 seem to require a slightly larger inner diameter (ID) line than the 5/16" I purchased. I am really struggling to push the soft line on and have gotten it slightly deeper then the clamp itself but not as much as it should be.
So my 4 solutions so far are: 1) Don't be a wussy, push that line on harder (I used some silicon spray to achieve what I already did) 2) Don't worry about it, its just a vent line, what you did is adequate. 3) Put the old soft tubing back on as it is just a vent line and the biodiesel (b100) will not really come in contact with this line anyway. 4) Buy some bigger hose. 5) Some other solution/explanation I have not worked out yet. Thanks Doug |
#2
|
||||
|
||||
Warm the ends carefully with a heat gun - should slip right on.
__________________
327K on 1986 W201, 602.911, 722.414 2.5 190D ("The Red Baron") 139K on 1993 W124, 104.942, 722.433 2.8 300E ("Queen") http://farm5.static.flickr.com/4081/...0bb92d3c_m.jpg http://i370.photobucket.com/albums/o...g?t=1325284354 Do not worry about your difficulties in Mathematics. I can assure you mine are still greater. - Albert Einstein take a walk down memory lane... |
#3
|
|||
|
|||
I had my indie change mine when he did the intake strainer. There were only 2 lines, but he could not get the 5/16" flexible line on one of the lines. I went and got him a piece of 3/8" fuel line.
I would try to heat the line as suggested above. Heat gun, hair dryer, container of boiling water, etc. What type of line are you using? If you are using the barrier lined USCG approved line, it may be a struggle even with it heated.
__________________
1987 300TD 309, xxx 2.8.2014 10,000 mile OCI Be careful of the toes you step on today, as they may be connected to the ass you have to kiss tomorrow. anonymous “Be who you are and say what you feel, because those who mind don’t matter, and those who matter won’t mind.” Dr. Seuss |
#4
|
||||
|
||||
The stock fuel lines could be metric like every other part on these cars. I would guess 8mm, which is roughly 5/16" only slightly larger. I'd say 1, 3, 4 are all good options.
__________________
TC Current stable: - 2004 Mazda RALLYWANKEL - 2007 Saturn sky redline - 2004 Explorer...under surgery. Past: 135i, GTI, 300E, 300SD, 300SD, Stealth |
#5
|
|||
|
|||
They are metric and in this case size does matter. I searched pretty extensively for a biodiesel resistant line in 7 and 8mm and couldn't find any. Sometimes I wish we had made the switch to the metric system.
__________________
1987 300TD 309, xxx 2.8.2014 10,000 mile OCI Be careful of the toes you step on today, as they may be connected to the ass you have to kiss tomorrow. anonymous “Be who you are and say what you feel, because those who mind don’t matter, and those who matter won’t mind.” Dr. Seuss |
#6
|
|||
|
|||
SAE 30R9 has a viton inner lining. I will see if there is a 3/8 at PepBoys or the like.
|
#7
|
||||
|
||||
Quote:
I don't think I messed with the vent line when I did mine. I think I just replaced the supply and return with this hose and had no problems so I can't be of much help for a solution.
__________________
2009 ML320 Bluetec 1985 300CD 1981 300TD Past Mercedes 1979 300TD 1982 300TD 2000 E320 4Matic Wagon 1998 E430 1984 300SD 1980 300SD |
#8
|
||||
|
||||
Fuel Injection Hose SAE 30R9
This looks like good stuff. I am going to bookmark it for when I upgrade to viton.
__________________
1993 W124 300D 2.5L Turbo, OM602.962 2000 Chevrolet Cavalier, 2.4L DOHC 2002 Ford Explorer, 4.0L SOHC 2005 Toyota Prius, 1.5L http://www.fuelly.com/sig-us/40601.png |
#9
|
|||
|
|||
3/8 works like a charm. I had the piece I installed just lying around and probably is nitrile (Buena-N) and will swap it out for a SAE 30R9 when I get around to it.
Doug |
#10
|
||||
|
||||
How long is that piece?
Is 3/8 ok in that location? no metric id?? Last edited by europower; 11-12-2009 at 08:03 PM. |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|