Silicone Hose For Line Witch Contains Fuel

[tdkmatt]

okay, i replaced a rubber hose where my boost controllers reads boost it just above from the fuel rail liek the vacume for it? when i cut the line fuel came out but it stopted after spillign a coupel of mls im not to sure if its acually a fuel line, it connectes to the fuel rail via a diaframe looking thing, and htne it goes into the intake manifold whitch is teeded off to my boost controller, is silicone hose okay? the lien i took out was rubber and stiff and had some reinforeced material in it

also its a r33 gtst

[Wogan]

<- contains fuel

Not sure which line you cut mate. If it's one of your fuel lines then would should probably get the correct hose, otherwise if it's the little hose that connects to your pressure regulator from the intake manifold then silicone is fine (though i'd be concerned it had fuel in it)

[tdkmatt]

yea its off the pressure regulator, its when i had all the pipes disconected and a little bit of fuel came out form the regulator because i cut the pipe with a knife, there wasnt any fuel i nthe actual line, also i change the pipe goig nto the fuel regulator also which the all connects from, and it smelt like fuel inside the pipes is this okay, checked it all after a drive no fuel nothign wrong?

[tdkmatt]

[Wogan]

that looks like your return line which goes back to the fuel tank. Might be worth picking up some rubber fuel lines. The silicone will do for a temp job since this line shouldn't be under much pressure.

[inthisglass]

you used a knife?

the fuel will eat away at the silicon hose, you need to buy fuel specific hoses ..

[Wogan]

yeah wasn't sure if it eats silicone.. i know it eats most rubbers. (insert fellatio joke here )

but yeah.. get the proper hose, cause the one you've cut is a fuel line, not the manifold pressure to the fuel pressure regulator.

[mitchy_]

hose coming off the fuel reg (yellow circle) is the fuel return line, definately put some EFI hose on it.

i'm assuming your boost gauge wasn't hooked up to this line? not unless you wanted to read your fuel pressure, lol

[NA_Goodness]

Karl, a knife is the best way to get a rubber pipe off if you're replacing it. Try doing heater hoses on a Skyline without a knife, to be honest your better off with an engine crane.

You'd be better off replacing it with rubber fuel line just in case.

[inthisglass]

i used pliers

you know, the tools that grip things

[mitchy_]

i used hose removal pliers

[NA_Goodness]

Normal pliers, short long nosed pliers, long long nosed pliers, multi grips, and a very shape blade. The best tools for hose removal. Try it some time!

[mitchy_]

  mitchy_ said:

i used hose removal pliers

  NA_Goodness said:

Normal pliers, short long nosed pliers, long long nosed pliers, multi grips, and a very shape blade. The best tools for hose removal. Try it some time!

i'll stick to my hose removal pliers hey.. they seem to do a pretty good job at removing hoses.

however, i'm sure a first year apprentice knows more than me, i've only worked on cars for years.

[tdkmatt]

im pretty sure ive uploaded the wrong pic, there are two lines comming to and from the fuel rail on from the underside of the car into the fuel filter, then into the fuel rail and the otther the regulator thingy, then there is a line from another regulator thingy near the fuel filter, and ive replaced it with silicone whitch goes to the regulator attached to the fuel rail and in the manual that is where your ment to tee it off to read boost, it reads vacume and bost perfectly fine, have had many mechanics look over the car,

[tdkmatt]

the pic i uploded isnt a nissan fuel rail i dont think i just realised the fuel regulator is on top of the fuel rail at the end if it not on the very end, if i didnt tee it off it would go straight into the inlet manifold itsj ust a 3 or 4mm hose, but i guess i best get osme efi? hose?

[mitchy_]

if its just the hose from the side of the regulator, that runs to the front of the plenum (all of about 150mm long) then yes, that is the vacuum line.

ideally i wouldn't tee anything into it, especially as there is a nipple on the back of the 25 plenum that runs the stock boost gauge, but you shouldn't have any issues as long as you made sure all connections are tight (cable ties on the ends of the hose work well)

edit - the short hose about 100mm to the left of the oil cap, going from reg to plenum, correct?

[NA_Goodness]

  mitchy_ said:

i'll stick to my hose removal pliers hey.. they seem to do a pretty good job at removing hoses.

however, i'm sure a first year apprentice knows more than me, i've only worked on cars for years.

And once again its all about you..

I was talking to Karl, I'm sure your ways have suited you fine for all those years. Besides, what would a 2nd year know anyway? I just sweep floors.

[JonnoHR31]

if its that short little vacuum line for the regulator it shouldnt have fuel in it, if it does your regs probably fked. if the one on the bottom of the rail you have circled on the picture is T'd into the intake manifold then you'd be pumping huge amounts of fuel straight into the motor.

Tee your boost controller into the same line that goes to your wastegate actuator or stock boost gauge

Edited February 28, 2009 by JonnoHR31

[rev210]

Getting stubborn rubber hoses off is made easier with Boiling water. Just don't pour it into your eyes or pants for fun.