andrewturner
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| posted on 20/6/07 at 06:53 PM |
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peddle box help
Can some please help.
I made up my own peddle box with adjustable brake bias, but have a problem, when I brake the 1st time I push the peddle I get very little on the front
if I push again I get the front working properly. I have tried all settings and nothing seems to help. Could it be that I do not have enough leaverage
on the peddle?
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jacko
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| posted on 20/6/07 at 07:02 PM |
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Air in system ? try bleeding the brakes ?
Jacko
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andrewturner
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| posted on 20/6/07 at 07:21 PM |
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no air
I have checked that twice
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nitram38
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| posted on 20/6/07 at 07:57 PM |
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Check that the angle that your cylinder rods are being pushed is straight.
I found that at rest they were level on mine and went in at an angle under pressure. This caused me to have your problem.
I found that by moving the rod connection to my pedal by 5mm, that they started off at an angle and straightened up under pressure.
You may be suffering the same thing.
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blakep82
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| posted on 20/6/07 at 09:13 PM |
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just a thought, are your calipers higher than the master cylinder? maybe needs a residual pressure valve (i think its called)
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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nitram38
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| posted on 20/6/07 at 09:17 PM |
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quote:
Originally posted by blakep82
just a thought, are your calipers higher than the master cylinder? maybe needs a residual pressure valve (i think its called)
Not required, calipers can be higher that the reseviour without any problems.
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blakep82
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| posted on 20/6/07 at 09:55 PM |
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^ i've heard of times when the brack fluid can siphon back to the MC, causing the brake pads to retract too far. tends to happen on cars witht
he MC lower than the calipers. just offered as a suggestion...
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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lsdweb
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| posted on 20/6/07 at 10:22 PM |
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Have a look at A P Racing's tips on balance bar setups - here
(PDF)
Wyn
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britishtrident
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| posted on 21/6/07 at 07:40 AM |
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What front calipers are you running ?
If Cortina/Escort it could be stuck 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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RazMan
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| posted on 21/6/07 at 10:02 AM |
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What method are you using to bleed the system? I have found that the Eezibleed doesn't work very well and leaves air in the system - there is no
substitute for a good old fashioned jam jar and swmbo's foot 
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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Fred W B
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| posted on 21/6/07 at 11:16 AM |
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quote:
there is no substitute for a good old fashioned jam jar and swmbo's foot
You kinky b@stard you
cheers
Fred W B
[Edited on 21/6/07 by Fred W B]
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nitram38
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| posted on 21/6/07 at 11:22 AM |
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quote:
Originally posted by Fred W B
quote:
there is no substitute for a good old fashioned jam jar and swmbo's foot
You kinky b@stard you
cheers
Fred W B
[Edited on 21/6/07 by Fred W B]
Yes, but you could be pumping forever and still not get anywhere
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geoff shep
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| posted on 21/6/07 at 03:48 PM |
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same question - what front calipers and have you got a picture of them.
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andrewturner
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| posted on 21/6/07 at 07:54 PM |
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At the rear I have GTI rear calipers and the fronts are a 4 pot set I made up my self after I was having the same problem with the cortina brakes.
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geoff shep
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| posted on 21/6/07 at 08:36 PM |
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Haven't played with a bias bar system but are you initially getting lots of travel in one circuit - rear by the sound of it - and then its
better on further pumps? Can you isolate the circuits and test them independently? Could the offending callipers be upside down or somehow not have
the bleed nipples at the top?
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britishtrident
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| posted on 21/6/07 at 09:38 PM |
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quote:
Originally posted by andrewturner
At the rear I have GTI rear calipers and the fronts are a 4 pot set I made up my self after I was having the same problem with the cortina brakes.
Q1 did you check the old calipers for a stuck piston.
Q2 Are the new calipers 100% true to the disc surface ---- if even at a very slight angle it will cause your symptoms.
You can check the master cylinder set up by removing the pipes at the master cylinder and screwing bleed nipples in.
[Edited on 21/6/07 by britishtrident]
[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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