David Jenkins
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| posted on 6/5/13 at 07:01 PM |
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One-sided brake piston?
I want to build one of these beasties:
I've got all the bits I need EXCEPT the brake cylinder that goes at the wheel rim. I could hack a 2-sided cylinder, but it would be much easier
with a single-sided one.
Can anyone suggest an easily available brake cylinder that would do the job?
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Andy S
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| posted on 6/5/13 at 07:12 PM |
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Use a clutch slave -
ETA -will you not also need a specific 1" CSA piston to give to a direct reading or are you going to use a correction factor?
Which to save to the calculation is a 1.128" bore
[Edited on 6/5/13 by Andy S]
[Edited on 6/5/13 by Andy S]
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britishtrident
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| posted on 6/5/13 at 07:19 PM |
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Mini slave but it an adaptor for the piston.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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mookaloid
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| posted on 6/5/13 at 07:20 PM |
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Classic mini front drum?
"That thing you're thinking - it wont be that."
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britishtrident
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| posted on 6/5/13 at 07:36 PM |
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MGB clutch slave might be even better + cheaper.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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daviep
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| posted on 6/5/13 at 07:37 PM |
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I guess it depends on the pressure rating of the gauge as you want the reading to be to be using a large amount of the scale for best accuracy.
What is the approximate weight of each corner?
What pressure gauge do you have?
Regards
Davie
“A truly great library contains something in it to offend everyone.”
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dave r
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| posted on 6/5/13 at 08:02 PM |
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biggest problem, i found with this type of gauge (i have a comercial one, ) is unless you steel wheels, you end up buggering up the rim
I'd love to give my imaginary friend a great big hug,
but this jacket makes it impossible.
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David Jenkins
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| posted on 6/5/13 at 08:08 PM |
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As for the gauge - I'll have to go and dig in my garage shelves - it's there somewhere! It's a calibrated one reading several
hundred psi, so I'm sure the range will be more than sufficient. I'm not bothered about getting an exact measure - as long as I can get
a number off the dial I can compare from one side to the other and get the weights balanced across the car.
I borrowed a professionally-made one of these years ago from Rusty Nuts, and it makes the job really easy. I want to do some work on the front end
over the next year, so I decided to make one for myself.
dave r - I know what you mean - last time I used one of these I put a small block of very hard rubber between the piston and the wheel rim.
Didn't get any damage.
[Edited on 6/5/13 by David Jenkins]
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rusty nuts
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| posted on 6/5/13 at 08:15 PM |
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Still have mine if you want to borrow it David
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britishtrident
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| posted on 6/5/13 at 09:30 PM |
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Thinking out the box you could use dial meter type torque wrench instead of a hydraulic load cell.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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britishtrident
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| posted on 6/5/13 at 10:01 PM |
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Found on ebay LARGE 300Kg 660lb Heavy Duty Parcel Platform Shipping Warehouse Floor Vet Scales | eBay
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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coyoteboy
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| posted on 6/5/13 at 10:57 PM |
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You would need 4 though, not cheap
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David Jenkins
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| posted on 7/5/13 at 01:52 PM |
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Yep - apart from the slave cylinder, everything will come from the odds and ends lying around my garage, so super-cheap to build! I'm not
looking for high sophistication or excessive complication (or high expense).
I'll take a look at those slave cylinders mentioned above - if I can get one cheap off ebay I'll be on a roll.
[Edited on 7/5/13 by David Jenkins]
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PSpirine
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| posted on 7/5/13 at 02:42 PM |
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Dual cylinder mini brakes use one-sided brake cylinders:
Mini Front Wheel Brake Cylinders LH RH sided pair GWC126 GWC127 for drums | eBay
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mark chandler
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| posted on 7/5/13 at 03:45 PM |
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Land Rover Series 3 Clutch Slave Cylinder 591231 | eBay
Landrover slave
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David Jenkins
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| posted on 7/5/13 at 03:47 PM |
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quote:
Originally posted by PSpirine
Dual cylinder mini brakes use one-sided brake cylinders:
Mini Front Wheel Brake Cylinders LH RH sided pair GWC126 GWC127 for drums | eBay
I've just put an ebay order in for something very similar - a single mini brake cylinder. Should do the job nicely! 
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owelly
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| posted on 7/5/13 at 04:06 PM |
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Four Argos bathroom scales at £4 each worked for me!
http://www.ppcmag.co.uk
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whitestu
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| posted on 7/5/13 at 04:07 PM |
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quote:
Four Argos bathroom scales at £4 each worked for me!
That was my approach as well!
Probably not that accurate but close enough.
Stu
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