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Old 23rd October 2020, 16:46   #71
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£124.10 down the drain.
Make that £131.94.
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Old 23rd October 2020, 19:28   #72
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That wouldn't have solved the yellow/gold connector problem. - i.e. the two halves won't come apart, so the pipe is useless anyway (and so is my bleed contraption).



£124.10 down the drain.




I do.

The rubber diaphragm takes up so much volume in the MC there's hardly any space left for fluid.* Plus, you have to take it out to bleed the slave otherwise it'll block the fluid flow from the pressurised Sealey/Gunson.

(* I syringed just 30-35mm out).

There's a level marker inside the MC - presumably you're supposed to check it using a finger, or maybe detach one eyeball and dangle it over the damned cylinder.

What they should have done is this (post 12 diagram) - but that would have been far too sensible so they didn't bother.
Lol...grumpy!

Maybe they were designed to be thrown away rather than maintained...
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Old 24th October 2020, 14:56   #73
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I'd fit this one - and the quick release connector is replaceable if you have issues again:
https://www.dmgrs.co.uk/products/rov...9db93637&_ss=r
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Old 25th October 2020, 07:34   #74
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Well that's blown it.

I couldn't get my bleed pipe contraption to join up with the gold 'quick release'* connector because it wouldn't go over the white split sleeve (I tried everything!). * The term 'quick release' is used sarcastically.

So I thought I'd take the sleeve off temporarily to see if anything else was jamming - it wasn't and the two halves slid together without any effort.



Of course now I can't separate them again because the rib on the gold half is locked in behind the ring of tangs in the yellow half and there's no way of releasing it again.



The only thing I can do now is buy a new master cylinder.

That's it - my patience has run out with this ******* money pit of a car.

In defence of the designer you removed the release mechanism and then connected the coupling. There could only be one outcome.These couplings work fine when used as designed.

As mentioned you can still release it, you just need to use something thin enough to go in - if it is too wide then use a couple of narrower split rings of thin plastic. Plenty of suitable material in the recycle bin - plastic bottles etc that can be cut down.








.

Last edited by Mike Noc; 25th October 2020 at 07:38..
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Old 25th October 2020, 16:42   #75
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Quote:
Originally Posted by Mike Noc View Post
In defence of the designer you removed the release mechanism and then connected the coupling. There could only be one outcome.These couplings work fine when used as designed..
The only reason I took the white sleeve off in the first place is that the two halves refused to join up with it on. So I took it off to see if something else was snagging - I accidentally slid them together a bit too far and the tangs sprang back behind the rib.


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As mentioned you can still release it, you just need to use something thin enough to go in - if it is too wide then use a couple of narrower split rings of thin plastic. Plenty of suitable material in the recycle bin - plastic bottles etc that can be cut down..
I've tried various other bits of plastic and it didn't work. Individual strips are no good because they're flat and don't follow the curve - and one single piece (a collar/sleeve) is either too thick and won't go in, or it's too thin and too weak to push all the tangs back at the same time.
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Old 25th October 2020, 16:44   #76
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Originally Posted by DMGRS View Post
I'd fit this one - and the quick release connector is replaceable if you have issues again:
https://www.dmgrs.co.uk/products/rov...9db93637&_ss=r
What about routing the copper pipe? Where does it anchor - or does it just float about in mid air between the bulkhead grommet and the slave connector?

The pre-filled version seems a lot easier to me - it's already got fluid in and the pipe flexes easily.
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Old 25th October 2020, 18:18   #77
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Quote:
Originally Posted by Blink View Post
The rubber diaphragm takes up so much volume in the MC there's hardly any space left for fluid.* Plus, you have to take it out to bleed the slave otherwise it'll block the fluid flow from the pressurised Sealey/Gunson.

(* I syringed just 30-35mm out).

There's a level marker inside the MC - presumably you're supposed to check it using a finger, or maybe detach one eyeball and dangle it over the damned cylinder.
The rubber diaphram will be compressed by the fluid, as delivered. The problem is that the only way the recompress it out in the field, if you change the fluid, is by pumping fluid in via the bleed nipple.

It is a good design for use on the production line, less good for the Rover dealers replacing them and an hopeless/pointless idea for us, at this stage in the car's life.
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Old 26th October 2020, 14:02   #78
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Quote:
Originally Posted by Mike Noc View Post
.... As mentioned you can still release it, you just need to use something thin enough to go in - if it is too wide then use a couple of narrower split rings of thin plastic. Plenty of suitable material in the recycle bin - plastic bottles etc that can be cut down.
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Originally Posted by Blink View Post
... I've tried various other bits of plastic and it didn't work. Individual strips are no good because they're flat and don't follow the curve - and one single piece (a collar/sleeve) is either too thick and won't go in, or it's too thin and too weak to push all the tangs back at the same time.
I've got it released now - but only by filing off the 2nd metal rib on the gold half, using a vice to support the yellow half, then driving the white split sleeve all the way in (evenly!) with a hammer and a screwdriver.





So my contraption is free again. I don't trust it not to jam up again though so I certainly won't be using it on my expensive new MC.




Btw, this arrowhead split is the cause of all the problems. It allows one side to go in slightly further than the other, which skews the whole sleeve and causes half of the tangs to remain locked. That's what jams it up and that's why there's a special tool.





I searched for a special tool to buy but couldn't find one in the UK. This one in the USA is all I found.



https://www.holley.com/products/plum...arts/LS0024ERL
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Old 26th October 2020, 14:20   #79
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Note the flange on the unlocking sleeve (US version) - it gives the tool something solid to push/pull against. Far more sensible than the bevelled edge on the MGR version!


Last edited by Blink; 26th October 2020 at 14:33..
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Old 26th October 2020, 17:11   #80
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Question Pipe support

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What about routing the copper pipe? Where does it anchor - or does it just float about in mid air between the bulkhead grommet and the slave connector?
If anyone fitted the metal Tazu master cylinder (STC100146T), can you tell me how you supported the length of copper pipe between the bulkhead grommet and the slave connector?

TIA.
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