DIY Brake Pipe? NCT Fail on rust anyone replaced them themselves?

The Continental Op

Wifes Fusion failed on a corroded rear offside brake pipe. I do most work on our cars and have replaces flexible hoses so bleeding the brakes isn't a problem. The mechanic I've used for this before isn't available so was thinking about doing it myself?

So what are the pitfalls and what do I need? Are there different diameters of brake pipe and connections? If so which size do I need?

Buffman

If you've changed flexible connections before then it's pretty much the same process except you're making a bespoke replacement. The only specialised tool you need is a brake pipe flaring tool to flare the ends of the pipes at the new connections.

You need to get the same size pipe as what's already on it, almost certainly 3/16" but double check. If you carefully remove the bit you're replacing you can use that as a template. You'll probably need to get a few union fittings depending on what exactly you're replacing, just remember to fit them onto the pipe BEFORE flaring it. Also, keep your cuts nice and straight to avoid unnecessary hassle.

There are plenty of Youtube vids about it if you if you want a better idea.

mayota

I got the Sealey flaring tool in local motor factors, fittings and a roll of copper pipe. Have replaced loads of metal brake pipes since. The metal pipe on the cars is hard and takes more effort to flare, the copper is lovely to work with and can be easily and safely shaped over axel, suspension ect. Definitely go DIY if you're doing the rest of the work yourself. Practice flaring on waste pieces and the copper first. I also got the Sealey roller pipe cutter which ensures neat square cuts.

The Continental Op

Thanks guys. I've chickened out. Mainly because I found a guy within half a mile of me that will do it for me one night next week.