Brakes...

[ben-me-123]

Hi, I'm just asking a quick question, I think I know the answer, but more experience and all that....
My brakes stopped working but would work when pumping so I had a look round and found a pattern front brake cylinder sprayed rather than cylinder-ed and replaced it.. but now I've put it on and started bleeding the brakes, I've noticed that the cylinder-cylinder pipe has a hole in it, and the front union is leaking.... I'm thinking I should just replace it all as it's obviously worn... but want to check that the pedal not working when pumping does fit with a couple of leaky/squirty pipes? thanks

[les]

Replace everything that is leaking, the pipe with a hole in it obviously is not right. Pumping the pedal is a sign of air in the system. Brakes will not work if fluid is being sprayed out!

[ben-me-123]

cheers, was doing just that, just didn't know if some trick was invloved... all makes sense anyway, parts on their way

[bmcecosse]

There MUST be NO leaks.....obviously I think. But did it start leaking only when you changed the cylinder? ie Did you twist the pipe??

[Trickydicky]

If the pipe/union was corroded and tight it may have been damaged when replaceing the cylinder. You will need to replace it. Top tip there for the future is to allow some penetrating fluid to do its stuff for a bit before trying to remove the union.

As others have said there should be no leaks or air in a fully fuctioning brake curcuit.

[bmcecosse]

Top tip is to have spare flexi and pipe 'in stock' ready for such calamity ! And if ANY doubt about steel pipes - fit new.

[Trickydicky]

Top tip is to have spare flexi and pipe 'in stock' ready for such calamity ! And if ANY doubt about steel pipes - fit new.

^^^^^ Observe this tip and apply the logic to other spares, cos you usually need them when all the motor factors have closed on a Sunday or you have to wait 3 days for them to arrive after ordering them off tinternet

[ben-me-123]

I actually usually do, either order an excess, or I know a man who does autojumbles who picks up anything going cheap and 'minor'. The flexi pipe, I was a step ahead with I now, and everything was old and a bit knackered... seems the car was done up and old brake pipes weren't replaced... Oh well, it'll be a bit of fun twiddling this afternoon.