Changing fuel lines - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

IKnowAllOfNothing · 05-29-2006, 09:32 PM

I have an s13 and one of the fuel lines underneath the car is really old and cracked. It's leaking fuel now and needs to be changed. My question is because the tank is full of gas, is their a way to change the line without fuel leaking all over my driveway?
Pictures are from under the rear of the car, the object in the bottom right corner is the gas tank

P.S. zip ties not done by me, will be removed.
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IAM_SO_sLOw · 05-29-2006, 10:16 PM

hmm.. i would think you would have to depressurize the lines by taking out your gas pump fuse and then start your car till it burns off the rest of it and then undo the lines... there might be some gas left but its not alot...lol if you drip some gas itll evaporate real quick

IKnowAllOfNothing · 05-29-2006, 11:01 PM

sweet
thanks,
Thats what i'll be doing tomarrow.
Hopefully it isn't too hot

projectRDM · 05-30-2006, 02:14 PM

Wrong. The lines are not pressurized, but since they flow fuel both ways they'll be full of fuel. Unhooking either one will allow it to begin leaking and continue to leak until it's plugged or reinstalled. Only way to do it without dumping the tank is to empty it by driving, or remove the tank completely.

IAM_SO_sLOw · 05-30-2006, 02:30 PM

^^
o ok lol i wasnt sure thats why i said "i would think" i thought it would be the same as when you change your fuel filter

would it make a difference if you took out your fuel pump?

undesiredshoe · 05-30-2006, 03:43 PM

i just pulled my fuel pump fuse and ran my engine until my car died. There were only drops of fuel in the line all the way to the fuel pump

nsn240 · 05-30-2006, 04:06 PM

^ what about the return line? What are you gonna replace them with, rubber hose? or ss line?

05-29-2006, 09:32 PM	#1
IKnowAllOfNothing Zilvia Member Join Date: Jul 2005 Location: Norcal Age: 44 Posts: 200 Trader Rating: (0) Feedback Score: 0 reviews	Changing fuel lines I have an s13 and one of the fuel lines underneath the car is really old and cracked. It's leaking fuel now and needs to be changed. My question is because the tank is full of gas, is their a way to change the line without fuel leaking all over my driveway? Pictures are from under the rear of the car, the object in the bottom right corner is the gas tank P.S. zip ties not done by me, will be removed. [IMG][/IMG] [IMG][/IMG]

05-29-2006, 10:16 PM	#2
IAM_SO_sLOw Zilvia FREAK! Join Date: Apr 2004 Location: west covina Posts: 1,164 Trader Rating: (5) Feedback Score: 5 reviews	hmm.. i would think you would have to depressurize the lines by taking out your gas pump fuse and then start your car till it burns off the rest of it and then undo the lines... there might be some gas left but its not alot...lol if you drip some gas itll evaporate real quick

05-29-2006, 11:01 PM	#3
IKnowAllOfNothing Zilvia Member Join Date: Jul 2005 Location: Norcal Age: 44 Posts: 200 Trader Rating: (0) Feedback Score: 0 reviews	sweet thanks, Thats what i'll be doing tomarrow. Hopefully it isn't too hot

05-30-2006, 02:14 PM	#4
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 51 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	Wrong. The lines are not pressurized, but since they flow fuel both ways they'll be full of fuel. Unhooking either one will allow it to begin leaking and continue to leak until it's plugged or reinstalled. Only way to do it without dumping the tank is to empty it by driving, or remove the tank completely.

05-30-2006, 02:30 PM	#5
IAM_SO_sLOw Zilvia FREAK! Join Date: Apr 2004 Location: west covina Posts: 1,164 Trader Rating: (5) Feedback Score: 5 reviews	^^ o ok lol i wasnt sure thats why i said "i would think" i thought it would be the same as when you change your fuel filter would it make a difference if you took out your fuel pump?

05-30-2006, 03:43 PM	#6
undesiredshoe Zilvia Addict Join Date: Sep 2005 Location: Wisco Age: 36 Posts: 787 Trader Rating: (2) Feedback Score: 2 reviews	i just pulled my fuel pump fuse and ran my engine until my car died. There were only drops of fuel in the line all the way to the fuel pump

05-30-2006, 04:06 PM	#7
nsn240 Zilvia Addict Join Date: Aug 2005 Location: pa Posts: 642 Trader Rating: (1) Feedback Score: 1 reviews	^ what about the return line? What are you gonna replace them with, rubber hose? or ss line?