Label these fuel/vent lines please...
Thread Starter
Senior Member
Joined: Feb 2002
Posts: 788
Likes: 0
From: San Antonio, TX
Car: '99 HO Z28 / '03 Trailblazer
Label these fuel/vent lines please...
I'm finishing up my fuel pump swap/hard line install on my TPI conversion. I *think* I know which is which - but I'm not positive....so if you would, please label which is feed/return/vent. The unmarked one goes right to a filter fitting.
Thanks!
Thanks!
Senior Member
iTrader: (-1)
Joined: Jan 2004
Posts: 776
Likes: 0
From: hamilton nj
Car: 91 Camaro RS
Engine: 350 bored .030 carbed
Transmission: t5
Axle/Gears: 3.08
from that picture, since i cant see the OD/ID too well to compare, id guess that A is to your carb/injection system B is your return line, and C is the gas tank vent that goes to the carbon can
Thread Starter
Senior Member
Joined: Feb 2002
Posts: 788
Likes: 0
From: San Antonio, TX
Car: '99 HO Z28 / '03 Trailblazer
Well, as it turns out the guy I nabbed the hard lines from for my TPI conversion didn't include the line from the fuel filter back to the hard lines. So I'll have to visit a parts yard soon (when it stops raining
) I should be able to compare at that time.
If it helps, "B" is larger physically that "A" or "C" if I recall correctly.

Thanks!
) I should be able to compare at that time.If it helps, "B" is larger physically that "A" or "C" if I recall correctly.

Thanks!
Senior Member
iTrader: (-1)
Joined: Jan 2004
Posts: 776
Likes: 0
From: hamilton nj
Car: 91 Camaro RS
Engine: 350 bored .030 carbed
Transmission: t5
Axle/Gears: 3.08
B would be your feed then because the return line is smaller than the feed and the vent is smaller than the return.
Senior Member
iTrader: (-1)
Joined: Jan 2004
Posts: 776
Likes: 0
From: hamilton nj
Car: 91 Camaro RS
Engine: 350 bored .030 carbed
Transmission: t5
Axle/Gears: 3.08
ill sent you some pics later on today, i have a carbed system but ill show you how it looks on my car.
Thread Starter
Senior Member
Joined: Feb 2002
Posts: 788
Likes: 0
From: San Antonio, TX
Car: '99 HO Z28 / '03 Trailblazer
The lines as pictured are from an LG4 car. I've swapped the in-tank pump but the lines there are still LG4. I should have marked them when taking the old lines out.
...but that's what Thirdgen.org is for, right?
...but that's what Thirdgen.org is for, right?
Thread
Thread Starter
Forum
Replies
Last Post
mcgarnicle
Engine/Drivetrain/Suspension Parts for Sale
5
Sep 24, 2015 07:18 PM
gta892000
Cooling
6
Sep 16, 2015 12:37 AM





