Brake Line removal 4th gen

Replaced all brake lines and rubber hoses on the rear axle. I will run new lines to the flex hoses at the back of the gas tank. What is the best way to get these lines loose at the front of gas ta

 

Welcome. PB Blaster and some soak time

 

welcome

 

Not going to be easy as rusty as the fittings are but as mentioned a good penetrating oil applied every day for several days and be sure to use a good quality "line wrench" A.K.A. "flare nut wrench" so you don't round over the fittings, if you get the fittings to move a little work them back and forth (loosen and then tighten, keep repeating this until it's easy to turn) to help break up the rust.

If you end up rounding over the fittings then you will have to use some Vise-Grips to hopefully get them loose.

What a "Line Wrench" looks like.

 

Thanks to all! I will spray them daily. Maybe a small amount of heat before attempting to break them loose?

 

If you can heat them without using a flame that may ignite the brake fluid which is flammable but not as flammable as gas, using a good electric heat gun or a hot hair dryer may help, but I would try without heat at first.

 

Use plenty of penetrant especially when working the fittings back and forth. When you think you have used enough penetrant, use more. Much more. Be patient, and even if it takes a week, use more penetrant and keep working it.