4 replies to this topic

[eilz1999]

Im in the process of replacing the rear brakes on my 1980 mini 1000. Ive heard its good practice to replace the flexi hose as well. I aim to do this and replace the metal pipe from the hose to the cylinder. Because the hose bends when you losen/tighten the union nuts, what is the best way to dismantle and reconnect/refit these pipes/hoses??? Any help will be much appreciated. Thanks

[Ethel]

One way is to release the clip on the cylinder so you can turn it while holding the pipe union still. Then work back along the line in a similar fashion. However, if you're replacing the pipe anyway just cut it. Have some method for stemming the leaking fluid ready.

 

It depends where you're disconnecting  as to what will work best. I have a collection of unions with crimped over ends of pipe to screw in; opening the bleed nipple^* and holding the pedal down will also isolate the reservoir to stop it draining right the way through.

 

* doing that first avoids pressurised squirting.

 

You can get a braided hose that replaces the lot with a nice banjo union that can be undone without kinking. http://www.minispare...C-AJJ4031B.aspx

[dklawson]

The hoses have hex body fittings on their ends, the nuts are on the hard pipes.  Use flare nut wrenches (one on the pipe, one on the hose) so you can prevent the hose from rotating/twisting while you loosen or tighten the nuts.  

 

As for removing the old hose, you only need to be careful with the main pipe from the front of the car since you are talking about replacing the rear hard pipes and hoses.  To minimize fluid loss, remove the cap from the master cylinder, stretch some plastic film over the reservoir opening and re-fit the cap.  Don't forget to remove the film and bleed the brakes carefully once the new pipes and hoses are installed.

 

Radius Arm Pipe and Hose (not my car... just a convenient picture).

 

Flare Nut (also called "Line" ) wrenches:

[eilz1999]

Hi all. Apart from putting new shoes on, ive done one side of the rear break hose, pipe and cylinder replacement. Your advice is much appreciated! Thanks!

[cal844]

If the shoes are not being replaced, give them a scuff up, the friction surface goes glazed and reduces performance slightly