brake lines removal

[TimF]

Ok I tried taking off my front brake lines to sell them, and I used a 10mm wrench to try and remove the hardline were it connects to the soft lines. It fit snugly over the nut but when I twist it did move at all, and the wrench would just slip, is there something I am doing wrong?

 

[Spoolin98]

Use a flare nut wrench, they are designed for removing brake lines like that.

 

[ExtremeTurboSystems]

^this. They looks like this.

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[TimF]

thanks I looked at work (I work at a hardware store) and the smallest one is a 12mm, so I need to find one

 

[91-GS]

Take a box-end wrench and cut a slot in it. Should work.

 

[ACM]

Take a box-end wrench and cut a slot in it. Should work.

No it won't, it will flex badly - if an open-end wrench won't free it neither will this solution. That's why flare wrenches have so much extra meat on them compared to a box wrench - to resist the flexing.

Charles

 

[UofACATS]

No it won't, it will flex badly - if an open-end wrench won't free it neither will this solution. That's why flare wrenches have so much extra meat on them compared to a box wrench - to resist the flexing.

Charles

Charles is correct. Use the right tool for the job, but beware even the flare wrenches can flex if you buy the HF cheapies! Here's an old trick if you're stuck: put the flare wrench on the nut, take a small vice grip and clamp it around the wrench. This helps prevent wrench-flex for breaking the nut free.

As always, it's helpful to soak the connection in PB blaster well before turning any wrenches.

 

[91-GS]

Did not realise they flex, though they were done that way so they won't strip the fasteners or slip off them.