Still struggling bleeding brakes

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Chill59
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Still struggling bleeding brakes

Post by Chill59 »

I'm still struggling to get a decent firm pedal. It's driving me mad!
I've been round the car umpteen times using the two man bleeding method.
I don't seem to be getting any 'proper' (big) air bubbles out any more but I do get streams of REALLY TINY bubbles every now and again.
I get periods of no bubbles at all (clear fluid) for 5,6,7 pumps and then, randomly, a stream of tiny bubbles.
All the above observed in a clear tube close to the bleed nipple.
Does this pattern of tiny bubbles indicate/suggest that there might be something wrong with the master cylinder?

TIA Chris
ampwhu
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Re: Still struggling bleeding brakes

Post by ampwhu »

been there before. buy a 'gunsons ezibleed'. they are around £20. it will work and you'll thank me later.
philthehill
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Re: Still struggling bleeding brakes

Post by philthehill »

Before you can utilise the Ezibleed system you will need an adapted Minor non vented master cylinder cap.

Chill59
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Re: Still struggling bleeding brakes

Post by Chill59 »

ampwhu wrote: Thu Apr 01, 2021 5:13 pm been there before. buy a 'gunsons ezibleed'. they are around £20. it will work and you'll thank me later.
Does the Gunson kit come with a cap that fits the moggie master cylinder? It doesn't look like it does from the photos I've seen of it.
Chill59
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Re: Still struggling bleeding brakes

Post by Chill59 »

philthehill wrote: Thu Apr 01, 2021 5:27 pm Before you can utilise the Ezibleed system you will need an adapted Minor non vented master cylinder cap.
Ah right. What do you need to do to modify the cap?
mowogg
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Re: Still struggling bleeding brakes

Post by mowogg »

Is it a new system or just a repair.? I have found air under thr brake switch to be a problem in the past
philthehill
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Re: Still struggling bleeding brakes

Post by philthehill »

You need the non vented cap from ESM.
https://www.morrisminorspares.com/brake ... it-p829339
The cap needs to be drilled and tapped and an adapter union fitted to suit the Ezibleed pipe.
Use the search facility for further details.
Last edited by philthehill on Thu Apr 01, 2021 6:09 pm, edited 1 time in total.

ampwhu
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Re: Still struggling bleeding brakes

Post by ampwhu »

i purchased another MC cap and modified it.

tool for life!
Chill59
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Re: Still struggling bleeding brakes

Post by Chill59 »

philthehill wrote: Thu Apr 01, 2021 6:07 pm You need the non vented cap from ESM.
https://www.morrisminorspares.com/brake ... it-p829339
The cap needs to be drilled and tapped and an adapter union fitted to suit the Ezibleed pipe.
Use the search facility for further details.
Thanks Phil. I've done some searching and found the specs for drilling, tapping etc.
In your expert opinion, do you think the Eezibleed method is the best way of bleeding minor brakes?
philthehill
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Re: Still struggling bleeding brakes

Post by philthehill »

There is no best way for bleeding the brakes on Minor. They either bleed well or are an absolute pig.
The Ezibleed system used with the modified cap is as good as any - especially if you are on your own.
Having the Ezibleed line pressure and the additional brake fluid in the Ezibleed container helps considerably.

Chill59
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Re: Still struggling bleeding brakes

Post by Chill59 »

philthehill wrote: Thu Apr 01, 2021 7:38 pm There is no best way for bleeding the brakes on Minor. They either bleed well or are an absolute pig.
The Ezibleed system used with the modified cap is as good as any - especially if you are on your own.
Having the Ezibleed line pressure and the additional brake fluid in the Ezibleed container helps considerably.
Thanks Phil. I wonder why some systems bleed easily and some don't. Seems strange.
mowogg
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Re: Still struggling bleeding brakes

Post by mowogg »

I wish I knew that answer. I have 2 minors at other ends of the spectrum. 1 bleeds easily the other is a pig. And it's always me bleeding them so I cannot understand the difference
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