PeterW
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| posted on 25/10/06 at 02:43 PM |
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Brake Master Cylinders
Question...
Does a brake master cylinder need to me horizontal..?
reason for asking...
Thinking about redesigning a pedal box so that the pedals are cranked at 90 degrees, and the master cylinder would end up near vertical...
Is this a problem..? And any reason why not to do it...? It allows for some interesting redesign, and also allows different forces to be applied to
the pistons etc.
Let me know what I'm missing...
Cheers
Peter
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zetec7
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| posted on 25/10/06 at 02:59 PM |
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Other than the fact that bleeding the system could be a bit of a bear (any high spots will trap air), and needing a remote fluid reservoir, it should
work. For bleeding, I'd suggest doing it with the master cylinder horizontal, then tilting it when there's no air left in the system.
Otherwise, you'll never get all the air out!!
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mistergrumpy
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| posted on 25/10/06 at 03:00 PM |
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I can't see why not. Would you be removing and relocating the reservoir? As long as you had a 'head' of brake fluid which would
ensure it filled into the actual master cylinder itself then in theory it sounds fine to me. Only thing to watch for would be how liqid tight the
filling cap would be.
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PeterW
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| posted on 25/10/06 at 03:10 PM |
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quote:
Originally posted by mistergrumpy
I can't see why not. Would you be removing and relocating the reservoir? As long as you had a 'head' of brake fluid which would
ensure it filled into the actual master cylinder itself then in theory it sounds fine to me. Only thing to watch for would be how liqid tight the
filling cap would be.
I'd use remote reservoir, something like a landrover one, and make sure it was higher than the cylinder.
Second question... Does the master cylinder reservoir need a float switch for the SVA, or can you use an inline pressure switch..?
Cheers
Peter
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lsdweb
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| posted on 25/10/06 at 04:20 PM |
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You could use a Mini master cylinder. Designed to operate vertically! Not sure about being able to satisfy SVA though.
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PeterW
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| posted on 25/10/06 at 06:00 PM |
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quote:
Originally posted by lsdweb
You could use a Mini master cylinder. Designed to operate vertically! Not sure about being able to satisfy SVA though.
Why not...??
Which bit of the SVA covers brake fluid levels...??
Cheers
Peter
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lsdweb
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| posted on 25/10/06 at 06:08 PM |
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The bit on brake fluid level warning lights?
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PeterW
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| posted on 25/10/06 at 06:28 PM |
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quote:
Originally posted by lsdweb
The bit on brake fluid level warning lights?
Yes... I meant which bit about vertical cylinders.... 
pdw
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Danozeman
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| posted on 25/10/06 at 07:23 PM |
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quote:
Does the master cylinder reservoir need a float switch for the SVA, or can you use an inline pressure switch..?
Yep needs a float switch for the dash warning light. You can use an inline switch for the brake lights.
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
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lsdweb
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| posted on 25/10/06 at 07:58 PM |
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PeterW
What I meant was that I don't believe you'd get a brake fluid warning switch on an early master cylinder. They must be on the later ones
but they may be a bit too big to fit.
Regards
Wyn
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DIY Si
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| posted on 25/10/06 at 08:03 PM |
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The fluid level is in the cap. Which fits the vertical cylinder he's after. Or, it does in my mini.  It's also split front and rear from
the cylinder so can save some with the front/rear spilt.
“Let your plans be dark and as impenetratable as night, and when you move, fall like a thunderbolt.”
Sun Tzu, The Art of War
My new blog: http://spritecave.blogspot.co.uk/
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lsdweb
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| posted on 25/10/06 at 08:16 PM |
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DIY Si
That's good news - I was thinking of the early single master cylinder with the small cap, like
th
is
I guess you've got one of
th
ese
That would make things even better - split system - if it fits!
Wyn
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pondskater292
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| posted on 25/10/06 at 08:54 PM |
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vauxhall use that 2
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