'89 Cabbie hard brake lines

Post Tue May 22, 2018 9:20 am

Morning all,

My cabbie has just failed his MOT on "Brake pipe excessively corroded Nearside (from rear union to front)" - does anyone know where I can purchase new hard brake lines from, or have I got to make some up?

I've had a google and can't find any online (though to be fair I'm not the best googler).

Any guidance gratefully received.

Post Tue May 22, 2018 9:35 am

you can either buy them from the dealers pre bent, or but a roll of kunifer & the brass unions along with a flaring tool & pipe bender & make your own.

all come down to budget mainly.

Post Tue May 22, 2018 2:33 pm

Hi, thank you for the reply.

Can you give more information on the brake line size and the flaring tool - is it double flare? Also, what size are the unions? If I go that route I'd rather get the correct kit first time.

Thanks again

Post Tue May 22, 2018 5:02 pm

Have a word with Jon on "Costwold" here , he is the best around !!
You may be surprised at the price .

Mart.

Post Tue May 22, 2018 6:33 pm

BackinBlack wrote:Hi, thank you for the reply.

Can you give more information on the brake line size and the flaring tool - is it double flare? Also, what size are the unions? If I go that route I'd rather get the correct kit first time.

Thanks again

hi, the nut/union size is IIRC M10 male & female, last time i did mine (a few years ago so it's a bit hazy) i used double flare one end & single the other.

the kit can be bought pretty cheaply this is the one i got

https://www.machinemart.co.uk/p/cht172- ... aring-kit/

cheap yes but it does the job also you'll need a pipe bender

this one does for me.

https://www.machinemart.co.uk/p/cht264- ... pe-bender/

but as mart says have a word on the cotswold parts section, see if they do pre-bent or not.

Post Tue May 22, 2018 7:39 pm

Spend a few pounds more, and buy this one or similar: https://www.ebay.co.uk/itm/Brake-Pipe-F ... Swll1Wwa6O Far easier to use and gives a much better flare every time.
Pipe bender is a luxury, but not needed - I've never had a kunifer brake pipe kink yet.. Bend around a large socket for tight bends.
Male unions have to be M10 Short to work with the U shaped spring clips that hold the ends of flexible hoses in place, although there are none of these associated with the pipe in question

Post Wed May 23, 2018 2:31 pm

Brilliant, thank you all for the feedback - I have taken the plunge and ordered some kunifer pipe etc. I'll let you know how it goes, its been a while since I last made my own brake lines (like 30 years).

Out of interest, I phoned my local BMW parts department, and the price for the pipe was £26 (next day delivery to dealer), comes with the unions and flares already to go, but is not pre-bent to shape.

Thanks again all for the advice.