Flaring fuel lines

[ChaosAD]

Ive been trying to change the fuel filter on my FX but the flare nut on the bottem is absolutely fukced.

Can I use refrigeration gear (which is designed for copper) to cut the fuel line at the bottem of the fuel filter and reflare it?

Would the flarenut be a standard refrigeration bit? its the inverse of what ive seen, it screws into the fuel filter.

[ChaosAD]

Or does anyone know what type of metal the fuel lines are?

[Bazda]

You will need a flare tool for the correct size line.
A flaring tool is pretty generic, all you need is the right size bit to go into the tool. You will need to take the fuel line off to do this through.

I had one that was hard to get off, ended up using vice grips to hold the nut, and turned the fuel filter with a spanner, as the fuel filter has a hex on the bottom just before the fuel line nut.

But if you go through all the trouble of taking the fuel line out, you may as well weld on an AN male fittings, get some AN fittings and a AN filter as well. Will make life much easier when changing fuel filter + looks bling!

[Crucible]

yep those lower flare nuts on corolla filters are always a bitch to get off.

I invested in a crowsfoot pipe spanner to get them off otherwise you can guarentee chunky knuckles or strippage everytime!!!

[pc]

Got the same problem on mine. The fuel line has been kinked a bit and then straightened as a result of the frozen nut, and now I don't want to touch it until I am ready to replace the whole line.
Vice grips will get it off though.

[ChaosAD]

otherwise you can guarentee chunky knuckles or strippage everytime!!!

I used an open ended spanner and got both results.

Used vice grips and got it half undone but it wont budge any further.

Already got a new toyota filter to fit and dont really want to get a flame anywhere near the fuel line

Just want to check that the fuel line isnt too hard and going to damage the flaring tool or not do a decent job. Has anyone tried it?

[Crucible]

the flare gets squished to a larger dia when done up tight from factory, then bind up on the inside threads of the filter when you try and undo them, thats why the nut goes loose then binds up.

we have a really good Sykes Pyk flaring tool, nice tools to use, flare steel pipe to pretty much any dia or flare. its over 1ks worth though, you can flare pipes on the car, I just use big stilseins as a holding vice lol , Ive used a few of the older flaring tools, most of them always clamp the tool bit too tight and always break!!