7 replies to this topic

[Deathrow]

I bought a set of these for my car years back and I'm only just recently in the process of fitting them. All seemed to be going well until today I came to attach them to the front callipers and the end didn't look like what I expected it to.

As far as I'm aware, the brake hose is meant to seal on the front calliper using a copper sealing washer. However the Goodridge hose has an angled seat at the end like it's designed to mate up to a brake flare.



I believe the original hoses had a flat end and considerably more threads.

Are these hoses wrong?

 

 

[nicklouse]

not an issue there is no seat so they seal with the washer.

[GraemeC]

Nick’s spit on Adam.

Don’t forget you should have the original serrated washer under the nut at the subframe end.
And that the hoses arehanded - the drivers side one being drilled and threaded deaper for the banjo bolt (if you get them wrong the pipe across the subframe won’t seal on the pass. side as the male fitting won’t reach the seat in the hose.

[Deathrow]

Thanks guys.

Is the shorter thread length a concern at all? It would seem there's only about 10mm of thread on these as opposed to 15mm or more on a standard one. I wonder why Goodridge have chosen to manufacture them like this.

Also, due to the lack of thread right up to the shoulder that the pipe seals on, the copper washer is quite free to wiggle about, is that normal or do I have the wrong washers?

Oh Graeme I know, before posting I did some searching across old threads and found a long thread about them being sided or not and there seemed to be about a 50/50 mix of people saying they were (including yourself) and people saying they weren't. They do look almost (if not completely) identical from the outside and I would never have thought to look at the depth of the internal threads in the subframe end for a difference.

Sorry for all the questions here, brakes aren't an area I'm willing to have any doubts about.

[nicklouse]

all normal just make sure the small copper washer is centeralish.

[Deathrow]

I suppose if it's going to cause me an issue it's going to be when I initially bleed the brakes as opposed to the washer shifting while I'm braking on the road.

I'll get them fitted next time I'm at the car .

​Thanks again guys.

[Deathrow]

Just wanted to follow this up with my findings at the weekend.

 

I measured the internal depth of both hoses at the subframe end and got 15.24mm and 14.94mm. I was measuring to the start of the conical part of the seat so there's scope for some measuring error there.

The threads on the banjo bolt are only 12mm long and when bottomed out in each hose, the distance between the hose face and the banjo sealing face was 9.42mm and 9.49mm.

 

The brass union measures 9.53mm between the two sealing faces. Once you've added the copper sealing washer on each side (which total 2.63mm) the banjo bolt is never going to bottom out in either hose.

I also did a test fit and the flared brake pipe end will bottom out in either on the sealing face in the hose.

 

It looks like Goodridge must have found a happy middle ground where the hose is deep enough for the union not to bottom out - allowing it to seal - but not so deep that the brake union on the end of the brake hardline can't compress the flared end in to the seat in the hose.

 

Here's an almost meaningless picture I took when I was measuring. Banjo bolt is screwed in until it runs out of threads for good measure .

 

 

Thanks again for the help guys, they're happily fitted to the car now.

[carbon]

Thanks guys.

Is the shorter thread length a concern at all? It would seem there's only about 10mm of thread on these as opposed to 15mm or more on a standard one. I wonder why Goodridge have chosen to manufacture them like this.

Also, due to the lack of thread right up to the shoulder that the pipe seals on, the copper washer is quite free to wiggle about, is that normal or do I have the wrong washers?

Oh Graeme I know, before posting I did some searching across old threads and found a long thread about them being sided or not and there seemed to be about a 50/50 mix of people saying they were (including yourself) and people saying they weren't. They do look almost (if not completely) identical from the outside and I would never have thought to look at the depth of the internal threads in the subframe end for a difference.

Sorry for all the questions here, brakes aren't an area I'm willing to have any doubts about.

Yes, the thread length on these Goodridge hoses is a lot shorter than the original type hoses. I think your concerns are justified, I raised this with the supplier at the time and they said nobody else had had a problem.

 

I fitted a pair of these a couple of years back and from memory there were only about three full threads on the hose fitting engaging with the internal thread on the caliper (original Cooper S type) as the thread in the caliper is recessed about 1/8 or more from the face. Ended up using the thinnest copper washer I could find and I was still not comfortable.

 

I don't use this car much, but will be taking the Goodridge hoses off and putting 'long thread' original front flexi hoses on before it goes back on the road.