EV fuel line replacement help!

[flower_king001]

Hi-

Started the EV this morning and noticed a leak. Seems to me coming from one of the fuel lines going to the driver side injector. Removed the assembly from the pressure regulator(single line) to the Y and then split into 2 on their way to the injectors. Went to Nappa and purchased 5/16 (7.9mm) hose as someone replaced it years ago with the same Gates. Got some new screw on smooth inner clamps and proceeded to make a new Y assembly. No matter how hard I try (even purchased smaller clamps) I could not get the hose not to turn on the junction. I found this brilliant article by Patrick Hayes:

http://www.guzzipower.com/FI-HoseReplace-Pat_H.html

Question...does anyone know of a good source for the hose and clamps that I need?

Would this kit work from Euro Motoelectircs?

http://www.euromotoelectrics.com/product-p/fp-hoseextinj.htm


What I thought was going to be an easy fix today turned into a project. 



Thanks, Brian

[pehayes]

So, why not run down to your local BMW car dealership?

Patrick Hayes
Fremont CA

[flower_king001]

So, why not run down to your local BMW car dealership?

Patrick Hayes
Fremont CA

Local BMW dealer from here is about 85 miles one way..

This kit should do the trick or?

Would this kit work from Euro Motoelectircs?

http://www.euromotoelectrics.com/product-p/fp-hoseextinj.htm

Thanks, Brian

BTW, brilliant tech article

[pehayes]

Should work, but so should the ones you already purchased.  I don't like those clamps provided by EME.

This is what the BMW clamp looks like.  Nice, small hex head for tightening with a nutdriver.. 4 or 5 mm I think.




Patrick Hayes
Fremont CA

[n3303j]

https://tinyurl.com/y74ztf8m



Worked fine on my EV. Has since worked fine on a lot of other hoses. Solid tool for short money.

[flower_king001]

https://tinyurl.com/y74ztf8m



Worked fine on my EV. Has since worked fine on a lot of other hoses. Solid tool for short money.

Hi Ron-

 Did you use these crimp on clamps just on the Y junction? How about where the hose connects to the injector?

Thanks-Brian

[n3303j]

I just build the hose assemblies with the permanent clamps. I want to be able to remove assemblies in case field maintenance is required.

[antmanbee]

You can use any hose that has the SAE  J30R9 rating that is the right diameter. I think I used either Gates or Dayco.
Use high quality clamps designed for FI or the crimp ons.
I used these,

https://smile.amazon.com/gp/product/B00OL26AW0/ref=pe_852110_211764720_em_1p_0_ti

[flower_king001]

Thanks for all your info...I just order a dozen of the BMW clamps and some 7.5 X 13.5 smooth rubber outside w/ inside braiding FI hose. The Gates and Dayco 5/16" just doesn't fit snug enough.

-Brian

Should work, but so should the ones you already purchased.  I don't like those clamps provided by EME.

This is what the BMW clamp looks like.  Nice, small hex head for tightening with a nutdriver.. 4 or 5 mm I think.




Patrick Hayes
Fremont CA

[flower_king001]

https://tinyurl.com/y74ztf8m



Worked fine on my EV. Has since worked fine on a lot of other hoses. Solid tool for short money.

thanks...ordered the kit and will use ear clamps on the Y junction. The line connecting to the regulator and fuel injectors will be BMW clamps.

[flower_king001]

update:
 I ended up getting the BMW smooth inner high pressure hose clamps and replaced the original 7.9 mm (5/16") hose with 7.5mm which is a much tighter fit. Took the bike out for a quick jaunt and all seems well. thanks for everyone's input here. 

-Brian

[rodekyll]

Just a tip -- I sometimes deliberately get smaller hose for these particular fittings and install them with a heat gun.  As the hose cools it shrinks onto the barbs.  I forgot to put a hose clamp on an injector the last time I did the hose.  I noticed and corrected it ~12k miles later because the clamp was missing, not because it was leaking.  Now I'm not suggesting that you skip the clamp part of the installation.  I'm just saying that a "sloppy" 1/4" hose will fit a sloppy 8mm barb with the help of a little heat.

[JoeB]

Learned (the hard way) that when one part goes bad to check, heck replace, the entire fuel system hoses. YMMV