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Mick
PostPosted: Thu Sep 06, 2007 11:03 pm 
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Having not delved into tin master cylinders in many years, what is the difference in the internal makeup of a clutch master cylinder to a brake unit? I seem to remember one had a small one way valve in it to leave some residual pressure in the brake lines? Am I right or is my mind starting to go to mush.

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gerg
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PostPosted: Thu Sep 06, 2007 11:16 pm 
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Mick,
Give Glen, The mini king's mechanic a call tomorrow on 02 46481233 he''l be able to tell you the difference.

Gerg

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simon k
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PostPosted: Thu Sep 06, 2007 11:17 pm 
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probably starting to go to mush, but it's still right - there is a valve in the brake one, but it's not necessary (according to Doc :D), just makes it easier to bleed them. I went through my big pile of MC's one day, and only 1 of them had the valve in it

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Wombat
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PostPosted: Fri Sep 07, 2007 6:54 am 
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skssgn wrote:
probably starting to go to mush, but it's still right - there is a valve in the brake one, but it's not necessary (according to Doc :D), just makes it easier to bleed them. I went through my big pile of MC's one day, and only 1 of them had the valve in it
Thats cause the rest were Clutch MCs :roll:

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Mick
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PostPosted: Fri Sep 07, 2007 7:24 am 
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Cool, I remember seeing that valve, but couldn't find them in mine either. So it just retards the return a tiny amount?

And bleeding is a very good reason too.

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sgc
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PostPosted: Fri Sep 07, 2007 3:36 pm 
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Is there a difference between MCs for disc braked cars vs. drums, aside from the reservoir size?

I seem to remember reading somewhere about the one-way valve in the drum MC needing to be removed when converting to discs, otherwise the caliper pistons don't retract.
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Mick
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PostPosted: Fri Sep 07, 2007 4:16 pm 
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I've seen that on other drum conversions where there is a valve to keep a residual pressure in the lines for non-self generating drums.

But as for minis, I dunno..

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simon k
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PostPosted: Fri Sep 07, 2007 4:18 pm 
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Wombat wrote:
skssgn wrote:
probably starting to go to mush, but it's still right - there is a valve in the brake one, but it's not necessary (according to Doc :D), just makes it easier to bleed them. I went through my big pile of MC's one day, and only 1 of them had the valve in it
Thats cause the rest were Clutch MCs :roll:


:P

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