Important! : 4pots, spongey/sinking pedal

1. user_37194 Established Member Joined: Sep 2009 rotherham Posts: 1832 Be scirocco, full on 03plate track spec Saxo

   #1 15th August 2011, 02:01

   well pee'd off at cadwell park in morning need to leave at 6am, just took car for a run out and the brakes are not working hardly, bled them all looks on, pedal feels hard then sinks down to the bottom, any ideas? setup will ood 4 pots, braied lines on front standard else where and a 23mm mc. looks like gona be expensive fuck up
2. Barry123 Saxperience Hardcore! Joined: Oct 2005 Aycliffe Posts: 32205 Saxo VTS

   #2 15th August 2011, 04:13

   Defo and I mean DEFO bled correctly?! Remember the ABS module holds a fair chunk of air in it (assuming you've still got that plumbed in), after I bled mine (I spent about 20 mins bleeding) I took it around the estate (lots of children playing in the road) to test the brakes out. I could barely stop.
   
   If you're certain, then you've got a leak, but that should be obvious from the reservoir level dropping.
   
   Good luck
   
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3. raunchz Saxperience Addict Joined: Jul 2005 Solihull / Bournemouth Posts: 14233 2015 Lapiz Blue Golf R

   #3 15th August 2011, 06:35

   ^^ agree with above - system should hold pressure.
   
   Check for leaks.
   
   Also, you got the servo vacuum pipe connected up - no air leaks?
4. AlexBp West Midlands Joined: Dec 2007 West mids Posts: 23149 Supra,civic GL

   #4 15th August 2011, 07:10

   Servo vaccume tends to make the pedal go solid ross
   
   Id say either a lea or rebleed the systems seen a few times the rears look bled but if you keep bleeding there is normally air further up the system
5. Darkslider Infrequent Poster Joined: Aug 2011 Gwynedd Posts: 184 Saxo VTS | Defender 90 | Kawasaki ZX6R

   #5 15th August 2011, 09:22

   Could be a leaky master cylinder seal also? If it sinks slowly then firms up when you pump the pedal that would also be worth looking at.
6. Steve Saxperience Hardcore! Joined: Mar 2005 Newcastle Upon Tyne Posts: 19910 CW Honda Integra DC5

   #6 15th August 2011, 10:20

   Pretty much what sayer said.
   
   With ABS what i did was pump the pedal a good few times between opening the bleed nipple.
7. MauritiusVtrDan Newbie Joined: Jul 2011 Leeds Posts: 2 Mauritius Blue mk1 vtr

   #7 15th August 2011, 20:09

   Quote:

   Originally Posted by mark1311 well pee'd off at cadwell park in morning need to leave at 6am, just took car for a run out and the brakes are not working hardly, bled them all looks on, pedal feels hard then sinks down to the bottom, any ideas? setup will ood 4 pots, braied lines on front standard else where and a 23mm mc. looks like gona be expensive fuck up

   I know this sounds silly but which way have you got them fitted? make sure the bleed nipples are facing upwards otherwise you will trap air at the top and they wont bleed up, found that one out the hard way, also have you bled both sides? i think you bleed the inner one first and then the outer one, hope this helps you i had a major headache fitting a set to a mini a while ago and both of these wer the issues causing the symptoms you have.