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displaying posts 1 to 17 of 17
| Author | Subject: Brakes not releasing properly |
 demondriverdan
Seasoned Pro  Location: Londinium Registered: 29 Nov 2010 Posts: 2,665 Status: Offline |
Post #1
At Brands currently and having issues with the brakes. They don't seem to be releasing properly. I thought it was something to do with the vacuum in case I plumbed it in wrong from the bodies on the new engine but removed that and still seems to be doing it. They are fine when you undo the bleed nipples a bit as it releases the pressure but pretty much as soon as you press the pedal again it has issues. Any ideas? ________________________________________ Rallye Race Car |
 Posted 22nd Feb 2016 at 09:44
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rikky
🦔 Location: cheshire Registered: 28 Feb 2004 Posts: 26,793 Status: Offline |
Post #2
have you touched the master cylinder / servo rod?________________________________________ 306 rallye reproduction decals (full sets/individual decals) | 306 b-pillar textured vinyl weatherstrips306 slam panel esso stickers | 306 yellow / orange / pension fund red side door badges gti6 inlet manifold badges | 306 rear boot badges (p2/p3) winner of Extraction of toys from prams with outstanding vigour award 2009 [source: gti6 owners club] |
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Posted 22nd Feb 2016 at 09:48
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demondriverdan
Seasoned Pro Location: Londinium Registered: 29 Nov 2010 Posts: 2,665 Status: Offline |
Post #3
Yes, I've had the servo and master cylinder out ________________________________________ Rallye Race Car |
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Posted 22nd Feb 2016 at 09:53
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phillipm
Seasoned Pro  Location: Rotherham Registered: 15 Oct 2006 Posts: 20,607 Status: Offline |
Post #4
Check the pushrod clearance, probably a bit too tight.________________________________________ - Bespoke rollcages/additions/adjustments. Half cages right up to complete custom spaceframes - MSA/FIA spec, CDS, ROPT, T45, etc - PM meEmail me! Custom-made polybushes available - need an odd size or fitment? - anything from batch work to one-off pieces. |
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Posted 22nd Feb 2016 at 10:21
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mocinim
Seasoned Pro  Location: The Darkside of bedford :) Registered: 09 Jan 2015 Posts: 2,307 Status: Offline |
Post #5
phillipm wrote: Check the pushrod clearance, probably a bit too tight. Sorry to crash but how is the done fella cheers  ________________________________________ BLACK RALLYE - phoenixWHITE RALLYE - valliant http://public.servicebox.peugeot.com/ https://www.gov.uk/check-mot-history |
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Posted 22nd Feb 2016 at 11:14
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rikky
🦔 Location: cheshire Registered: 28 Feb 2004 Posts: 26,793 Status: Offline |
Post #6
remove the master cylinder and the rod poking out of the servo which presses into the master cylinder. i had to wind mine in about 1-2 turns from memory when fitting my gti6 MC into the 205 gti servo for clearance________________________________________ 306 rallye reproduction decals (full sets/individual decals) | 306 b-pillar textured vinyl weatherstrips306 slam panel esso stickers | 306 yellow / orange / pension fund red side door badges gti6 inlet manifold badges | 306 rear boot badges (p2/p3) winner of Extraction of toys from prams with outstanding vigour award 2009 [source: gti6 owners club] |
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Posted 22nd Feb 2016 at 11:17
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mocinim
Seasoned Pro Location: The Darkside of bedford :) Registered: 09 Jan 2015 Posts: 2,307 Status: Offline |
Post #7
rikky wrote: remove the master cylinder and the rod poking out of the servo which presses into the master cylinder. i had to wind mine in about 1-2 turns from memory when fitting my gti6 MC into the 205 gti servo for clearance Cheets rikky ________________________________________ BLACK RALLYE - phoenixWHITE RALLYE - valliant http://public.servicebox.peugeot.com/ https://www.gov.uk/check-mot-history |
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Posted 22nd Feb 2016 at 11:20
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demondriverdan
Seasoned Pro Location: Londinium Registered: 29 Nov 2010 Posts: 2,665 Status: Offline |
Post #8
Looks like it is this problem. I don't run a GTi6 MC either so could be it's never worked properly ________________________________________ Rallye Race Car |
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Posted 22nd Feb 2016 at 12:01
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phillipm
Seasoned Pro Location: Rotherham Registered: 15 Oct 2006 Posts: 20,607 Status: Offline |
Post #9
Yeah, you'll get it worse as the brakes warm up. And as they warm up, they bind more, and warm up further, until they won't come off.There is a spec for the clearance, but I used to just jack the car up, and tweak it bit by bit until I could feel a slight drag after pressing the brakes (with the engine running to make vacuum in the servo!), then wind it back half a turn, take it for a quick spin around the block warming the brakes through and tweak it from there if it was still binding. That way I could get as little slack as possible in the brake pedal/system without them locking on, the brakes on my 1.4 were quite frankly awesome, I've even had to modify the Brembo's on the 406 just because the pedal feel was so s**t compared  ________________________________________ - Bespoke rollcages/additions/adjustments. Half cages right up to complete custom spaceframes - MSA/FIA spec, CDS, ROPT, T45, etc - PM meEmail me! Custom-made polybushes available - need an odd size or fitment? - anything from batch work to one-off pieces. |
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Posted 22nd Feb 2016 at 21:55
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welshpug!
Capt Pedantic  Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,817 Status: Offline |
Post #10
not sure on the 306 spec but in the zx haynes its specified at 24.8 mm +/- 0.1mm from the face to the nose of the pushrod________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 22nd Feb 2016 at 22:10
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demondriverdan
Seasoned Pro Location: Londinium Registered: 29 Nov 2010 Posts: 2,665 Status: Offline |
Post #11
I bodged a fix by putting some washers under the MC to space it out a bit. I'm pretty certain the problem is caused part by the larger MC and part because I didn't bother to refit the large rubber grommet the servo sits in which means it's closer to the pedal now. I tried to wind in the rod on a spare MC I have but it didn't seem to move anywhere?________________________________________ Rallye Race Car |
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Posted 23rd Feb 2016 at 09:58
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,817 Status: Offline |
Post #12
some aren't adjustable., you do need to hold the rod whilst winding the nut on the end in.________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 23rd Feb 2016 at 11:26
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demondriverdan
Seasoned Pro Location: Londinium Registered: 29 Nov 2010 Posts: 2,665 Status: Offline |
Post #13
Is the rod on the servo? I was looking at the rod on the MC________________________________________ Rallye Race Car |
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Posted 23rd Feb 2016 at 11:27
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,817 Status: Offline |
Post #14
yep.________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 23rd Feb 2016 at 11:53
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demondriverdan
Seasoned Pro Location: Londinium Registered: 29 Nov 2010 Posts: 2,665 Status: Offline |
Post #15
Ah, ok. I'll try and have a look at the servo this weekend________________________________________ Rallye Race Car |
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Posted 23rd Feb 2016 at 11:54
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phillipm
Seasoned Pro Location: Rotherham Registered: 15 Oct 2006 Posts: 20,607 Status: Offline |
Post #16
If you've put washers under the master cylinder the seal won't be up against the servo....you'll have unassisted brakes.That and a washer thickness will be far too much, your brakes will have some serious slack. ________________________________________ - Bespoke rollcages/additions/adjustments. Half cages right up to complete custom spaceframes - MSA/FIA spec, CDS, ROPT, T45, etc - PM meEmail me! Custom-made polybushes available - need an odd size or fitment? - anything from batch work to one-off pieces. |
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Posted 23rd Feb 2016 at 12:28
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demondriverdan
Seasoned Pro Location: Londinium Registered: 29 Nov 2010 Posts: 2,665 Status: Offline |
Post #17
That's what I expected yet the servo seemed to be working fine. We ran with unassisted brakes earlier in the day and it was nothing like that.________________________________________ Rallye Race Car |
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Posted 23rd Feb 2016 at 12:29
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