Replacing front brake lines - remove proportioning valve?

[tophat36]

I really want to replace the front brake lines and hoses but as it goes for everyone, been a real bitch to get the flare fittings loose on the lines and at the proportioning valve. No issue getting the lines loosening on master cylinder. My question is, if I unbolt the proportioning valve or partially unbolt/loosen, will this make it easier? Only line I don’t have yet that attaches to the valve is the front to rear line. I could potentially just cut the others, but can’t mess that one up. Any thoughts or suggestions on this? The access to these fittings is pretty stupid. I can grab my crows feet from work but until then I’m trying to be creative. I guess I could buy line wrench crows feet, I think that exists. I can’t get a dang vice grip on the inside/tube side. Nothing seems to be working and I’m loosing faith

 

[Old Guy Bill]

There are different sizes/styles of vise grips…
When you get ready to put it back together some Anti-Sieze on the threads of the fittings will prevent it from happening again.

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[legopnuematic]

They exist.

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Have you tried a regular flare wrench?

If you have a flaring tool, you may be time ahead by just cutting the line, then cut it back a foot or two (wherever is most convenient), flare, and install a union (not a compression fitting). Bend a new line to prop valve.

 

[legopnuematic]

Those Sunex flare crows-foot wrenches are on sale on Amazon for $12 for the set currently.

Here

I’ve got both the standard and metric sets, I’ve been pleased with them so far.