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I spotted some brake fluid on the garage floor a few days ago and it was leaking from the joint where the rear flexi goes through the subfame and the copper pipe. the flexi was looking a bit old so replaced the two flexis and the copper pipes. it's still leaking!!!
I've tightened the union with about the normal force. help.

Only one thing to do. Swing on it & if it still leaks you will have to replace the metal pipe.

M

I replaced the copper pipes as well.

In that case, make sure that the copper pipe is located right at the base of the union & swing on it.

M

thanks, i'll give it go, i'm afraid of using too much force.

i'm afraid of using too much force.

All you can do is damage either the flexi, the copper pipe or the unions & if they continue to leak you will have to replace one or the other anyway. Go for it, you have nothing to loose.

M

Your profile is incomplete. If you located in North America, the North American style hard lines will leak if mated to British flexible lines.

If you located in North America, the North American style hard lines will leak if mated to British flexible lines.

I didn't know that! Whats the difference?

M

Presumably it must be the standard for the flare on the pipe end?

I sure you can get a set of Automec ones posted over

24 hours and it seems ok. I,ve never had to do them that tight before, I thought I was going ton strip the thread. now to bleed the brakes and hope for the best.

sometimes you have to nip them harder than you think is right to be able to 'form' the flare on the copper pipe into the flexy hose, particularly if the flare hasn't formed quite right.