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96 Lumina brake/fuel line question


3pt1lumina

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The time has come to replace my brake and fuel lines. What size are the lines so I can buy the proper replacements at Advance Auto? I'm going to run brand new lines throughout the entire car. Thanks

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Not the response I was looking for...which is why I don't frequent this board anymore. Thanks for the helpful tip yes I'm aware I can do that myself. Since the vehicle is stuck at a location where it's not easy to rip apart, measure, go buy the replacements then go back and run new lines I thought here might be a good place to ask for advice. Not be talked down to.

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the vehicle is stuck at a location where it's not easy to rip apart, measure

1. Why would you need to "rip apart" the vehicle to measure the tubing?

2. Why not mention this in the first post? My feelings were that you're going to spend hours under the vehicle removing parts in order to bend, flare, and install the new tubing, it's not unreasonable to expect you to take a cheap caliper or other device and spend ten minutes measuring the tubing before you start.

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Length of tubing I have an estimate of what I need. I was more interested in size of fittings because yes I will need to flare as well. I see your point that should have been clearer in the first post. Just trying to save a step if someone knew off the top of their head. I'll just limp it home and deal with it once I can tear it apart without a time restriction.

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Fuel lines are easy, pick up a new fuel filter and that's the only thread size, everything else is quick cooupler flarey things. JCW used to sell a brake like kit that came with enough tubing for a car and a slew of various brake line flare fittings.

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Length of tubing I have an estimate of what I need. I was more interested in size of fittings because yes I will need to flare as well. I see your point that should have been clearer in the first post. Just trying to save a step if someone knew off the top of their head. I'll just limp it home and deal with it once I can tear it apart without a time restriction.

 

The brake line fittings are a btch to figure out. When I looked everyone had different info. The line lenght is difficult as well because most dont run the lines back in stock location. Get two 50 foot spools of 3/16's brake line, one roll of 5/16ths for the fuel line return, and 3/8ths for the feed. I'd get the nickel copper line too cause its easy to bend and last a lot longer than uncoated steel.

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3/16ths sounds correct for brake line..... or at least, i think that is what i've been using, i've only had to patch together the MC's rear running lines in about 4 places each.

 

there is only a 1/16th inch difference between fuel feed and return though? i could have swore it was a much more noticable difference..... but i could also be thinking about the CCP lines, so IDK.

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I plan on doing mine eventually as well. But depating on just going straight to braided stainless line cause I want to do a fuel cell sooner rather than later

Terrible idea.

 

Hose is less durable, more expensive, and heavier than metal tubing. If you buy the wrong hose (many folks try to get by with steel braid over rubber liner hose instead of steel braid over Teflon liner) the hose will be porous, too. Gas fumes will stink up your garage.

 

Use the MINIMUM amount of hose, plumb the rest with metal tubing...just like GM did.

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The brake line fittings are a btch to figure out. When I looked everyone had different info. The line lenght is difficult as well because most dont run the lines back in stock location. Get two 50 foot spools of 3/16's brake line, one roll of 5/16ths for the fuel line return, and 3/8ths for the feed. I'd get the nickel copper line too cause its easy to bend and last a lot longer than uncoated steel.

 

Excellent thank you! Exactly what I needed to know.

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Terrible idea.

 

Hose is less durable, more expensive, and heavier than metal tubing. If you buy the wrong hose (many folks try to get by with steel braid over rubber liner hose instead of steel braid over Teflon liner) the hose will be porous, too. Gas fumes will stink up your garage.

 

Use the MINIMUM amount of hose, plumb the rest with metal tubing...just like GM did.

 

Hmm thats weird. I wonder why many race cars run proper braided stainless line...

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Hmm thats weird. I wonder why many race cars run proper braided stainless line...

Because they have an enormous sponsor-supplied budget for replacing the hose every three years or so?

 

Because they don't care about fuel vapor escaping from the hose and stinking-up the garage?

 

Because the competition does it, and they're more about monkey-see-monkey-do just like with some street-driven wannabe racers?

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Meanwhile I'll interrupt this pissing match to provide actual information

 

Fuel supply 3/8s

fuel return and vapour 5/16s

brake 3/16s

 

I'd guestimate:

1 roll of 3/8s

2 rolls 5/16s

2 rolls brake tubing

 

You can buy rather handy compression fittings to put the nylon fuel lines back on the new fuel tubing.

 

I prefer the regular green coated tubing, superior to what the original stuff was, and the rest of the car will fall apart before it rusts through again

 

You could go nickel-copper tubing but its crazy expensive for not much gain.

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