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Author Subject: Brakes Sticking
birk

Seasoned Pro

Location: Doncaster

Registered: 24 Oct 2005

Posts: 7,032

Status: Offline
Post #1
When i press the brakes on the car and release the pedal, the brakes stay on, the fault is intermitent, when the brakes are seized on i can slam on realy hard and the brakes free off, then when i just tap the brake as if say a car was in front of me, just for normal braking, it will brake as usual but then stick on.

I have changed the master cylinder and replaced the T-piece on the vaccume setup.

Please help.

Dan

________________________________________

Dimma + Gt35 turbo = Ninja
Solid rear beam mounts £130
07889376885
Dan
Posted 18th Oct 2009 at 02:22
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pooouk

Regular

Location: Belper, Nr Derby

Registered: 22 Jun 2009

Posts: 259

Status: Offline
Post #2
If the calipers are sliding free, it will probably be the front flexi hoses. They split inside and the little flaps of rubber restict the return flow of the fluid. I had it on the 205 (took me ages to work it out!!)

Nick

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AKA nick on 205gtidrivers.com
Posted 18th Oct 2009 at 02:33
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birk

Seasoned Pro

Location: Doncaster

Registered: 24 Oct 2005

Posts: 7,032

Status: Offline
Post #3
Me and my mate came to that conclusion aswell, but surely it wouldnt happen on both sides ?

________________________________________

Dimma + Gt35 turbo = Ninja
Solid rear beam mounts £130
07889376885
Dan
Posted 18th Oct 2009 at 03:15
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chris with a pug

Seasoned Pro

Location: Southampton

Registered: 16 Feb 2003

Posts: 5,366

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Post #4
Is the brake system standard? If so that is a strange problem as the fronts are independent.
Might be worth changing the pipes for peace of mind.
Have you checked the servo and the pedal mech?
Posted 18th Oct 2009 at 19:29
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birk

Seasoned Pro

Location: Doncaster

Registered: 24 Oct 2005

Posts: 7,032

Status: Offline
Post #5
I have 330mm brembo setup, with standard master cylinder, servo etc

I Dont know how to check the servo and pedal mech realy, ive searched, but to no avail, hence the thread, any idea ?

Dan

________________________________________

Dimma + Gt35 turbo = Ninja
Solid rear beam mounts £130
07889376885
Dan
Posted 19th Oct 2009 at 18:33
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phillipm

Seasoned Pro

Location: Rotherham

Registered: 15 Oct 2006

Posts: 20,607

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Post #6
Servo rod>master cylinder clearance a bit tight perhaps?

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Posted 19th Oct 2009 at 23:38
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birk

Seasoned Pro

Location: Doncaster

Registered: 24 Oct 2005

Posts: 7,032

Status: Offline
Post #7
God knows phill, havent got a clue when its come the the servo setup, ive got some braided hoses from miles on ther way, hopefully get them in the next few days, then can go from ther i suspose.

________________________________________

Dimma + Gt35 turbo = Ninja
Solid rear beam mounts £130
07889376885
Dan
Posted 19th Oct 2009 at 23:46
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chris with a pug

Seasoned Pro

Location: Southampton

Registered: 16 Feb 2003

Posts: 5,366

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Post #8
you can unbolt the servo its only 4 bolts if you can get to them
Posted 20th Oct 2009 at 01:38
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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,817

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Post #9
phillipm wrote:
Servo rod>master cylinder clearance a bit tight perhaps?


s what I would suggest looking at too.

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Bring on the Trumpets.

Posted 20th Oct 2009 at 03:04
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birk

Seasoned Pro

Location: Doncaster

Registered: 24 Oct 2005

Posts: 7,032

Status: Offline
Post #10
welshpug! wrote:
phillipm wrote:
Servo rod>master cylinder clearance a bit tight perhaps?


s what I would suggest looking at too.


How would i go about this, or is it easier to just replace the whole servo unit

________________________________________

Dimma + Gt35 turbo = Ninja
Solid rear beam mounts £130
07889376885
Dan
Posted 20th Oct 2009 at 03:19
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phillipm

Seasoned Pro

Location: Rotherham

Registered: 15 Oct 2006

Posts: 20,607

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Post #11
Unbolt the mastercylinder and either use some plasti-gauge to check the clearance, or measure it with a vernier against a straight edge to work out the clearance.
The rod is adjustable to alter it.

________________________________________

- Bespoke rollcages/additions/adjustments. Half cages right up to complete custom spaceframes - MSA/FIA spec, CDS, ROPT, T45, etc - PM me
Email me!
Custom-made polybushes available - need an odd size or fitment? - anything from batch work to one-off pieces.
Posted 20th Oct 2009 at 03:24
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birk

Seasoned Pro

Location: Doncaster

Registered: 24 Oct 2005

Posts: 7,032

Status: Offline
Post #12
Is that the rod that sits inside the servo, the bit the MC sits on ?

What kind of clearance should i be looking at ?

________________________________________

Dimma + Gt35 turbo = Ninja
Solid rear beam mounts £130
07889376885
Dan
Posted 20th Oct 2009 at 03:29
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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,817

Status: Offline
Post #13
IIRC something around 22.2mm +/- 0.1mm.

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 20th Oct 2009 at 03:32
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birk

Seasoned Pro

Location: Doncaster

Registered: 24 Oct 2005

Posts: 7,032

Status: Offline
Post #14
Oky doky, will steel a vernier from somewhere and have a look.

________________________________________

Dimma + Gt35 turbo = Ninja
Solid rear beam mounts £130
07889376885
Dan
Posted 20th Oct 2009 at 03:35
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birk

Seasoned Pro

Location: Doncaster

Registered: 24 Oct 2005

Posts: 7,032

Status: Offline
Post #15
Not had chance to look at the servo rod, mainly because i dont understand how it could have just randomly stopped working, so i decided to swop the abs pump over, fit some new braided hoses on the front and replace one of the brakes lines to the m/c that i couldnt get off.

The pedal feels alot different and i noticed the brakes wernt sticking on, but... after driving the car for some time and getting it warm they started to stick again, but not as bas as before.

I also noticed, when i stop and leave the car running, to get up to temp, both water and oil the brakes stuck on then, gave the pedal a quick press, and they would work as normal.

Still baffled as to what it could be, why would it be the servo rod, it must have worked all these years, surely the rod has to be adjusted for it to alter how it affects the brakes.

________________________________________

Dimma + Gt35 turbo = Ninja
Solid rear beam mounts £130
07889376885
Dan
Posted 26th Oct 2009 at 15:53
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birk

Seasoned Pro

Location: Doncaster

Registered: 24 Oct 2005

Posts: 7,032

Status: Offline
Post #16
Just been down to see my mate at mot station, had car on the brake tester, car was nice n warm, upto temp, used the brakes loads of times on a good drive, front drivers side is sticking, so had a quick peak at the caliper and it seems the metal bits that the pad sits on has corroded and covered in shit, a common problem with the brembo calipers i do believe, so shall take them apart over the next few days and give them a good clean, hopefully will solve the problem Smile

________________________________________

Dimma + Gt35 turbo = Ninja
Solid rear beam mounts £130
07889376885
Dan
Posted 26th Oct 2009 at 20:47
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birk

Seasoned Pro

Location: Doncaster

Registered: 24 Oct 2005

Posts: 7,032

Status: Offline
Post #17
New servo sorted it Thumbs up

________________________________________

Dimma + Gt35 turbo = Ninja
Solid rear beam mounts £130
07889376885
Dan
Posted 21st Dec 2009 at 04:24
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cact1972

Junior User

Location: barrow in furness

Registered: 29 Jul 2007

Posts: 58

Status: Offline
Post #18
birk wrote:
New servo sorted it Thumbs up


How hard to change the servo?
Posted 23rd Feb 2010 at 22:06
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birk

Seasoned Pro

Location: Doncaster

Registered: 24 Oct 2005

Posts: 7,032

Status: Offline
Post #19
Very!

Dash came out so i could get to the 4 bolts that hold it on, engine has to come forward so you can replace it.

________________________________________

Dimma + Gt35 turbo = Ninja
Solid rear beam mounts £130
07889376885
Dan
Posted 23rd Feb 2010 at 22:07
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phillipm

Seasoned Pro

Location: Rotherham

Registered: 15 Oct 2006

Posts: 20,607

Status: Offline
Post #20
Servo rod could easily cause it because it should be adjusted for the tolerance on the new master cylinder...

________________________________________

- Bespoke rollcages/additions/adjustments. Half cages right up to complete custom spaceframes - MSA/FIA spec, CDS, ROPT, T45, etc - PM me
Email me!
Custom-made polybushes available - need an odd size or fitment? - anything from batch work to one-off pieces.
Posted 23rd Feb 2010 at 23:17
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