displaying posts 1 to 11 of 11

Author Subject: Servo problems? + how to remove?
ben tearle

Regular

Location: Nantwich

Registered: 24 Sep 2008

Posts: 107

Status: Offline

Post #1
Right then, I've been having a nightmare with my trackday GTi6, all new discs and pads just fitted all round, fluid changed, it was bled many many times, but the pedal kept going to the floor slowly.

Vacuum hose's from the servo all checked the jubilee clips checked for tightness.

I then changed the master cylinder for another one, no change.

I then cracked off the two pipes I could get on at the rear compensator as you could hear trapped air, the pedal went nice and solid, I thought great that's it sorted.......start the engine and the pedal goes to the floor...

When you search on here/google it all points towards the servo being at fault?

Has anyone changed one recently? It doesn't look like it'll come out easily? I hope the cylinder head doesn't need to come off? Or can it be extracted being undoing the top engine mount and moving the engine forward and right as much as possible?


Posted 25th May 2016 at 08:30
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,817

Status: Offline

Post #2
was it a new mc? still got a load compensator?

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Bring on the Trumpets.

Posted 25th May 2016 at 08:33
ben tearle

Regular

Location: Nantwich

Registered: 24 Sep 2008

Posts: 107

Status: Offline

Post #3
welshpug! wrote:
was it a new mc? still got a load compensator?


No a used one, yes it still has the rear load compensator fitted.
Posted 25th May 2016 at 09:18
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,817

Status: Offline

Post #4
get a new mc and check the compensator isnt seized

________________________________________

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

Bring on the Trumpets.

Posted 25th May 2016 at 10:04
ben tearle

Regular

Location: Nantwich

Registered: 24 Sep 2008

Posts: 107

Status: Offline

Post #5
welshpug! wrote:
get a new mc and check the compensator isnt seized


Ok cheers will do - the compensator arm appears to move.
Posted 25th May 2016 at 11:04
fatlapit

Seasoned Pro

Location: STOCKSFIELD

Registered: 02 Nov 2010

Posts: 3,040

Status: Offline

Post #6
Bin the compensator and fir a bias valve

________________________________________


Posted 25th May 2016 at 11:38
ben tearle

Regular

Location: Nantwich

Registered: 24 Sep 2008

Posts: 107

Status: Offline

Post #7
fatlapit wrote:
Bin the compensator and fir a bias valve


Would that not be an MOT failure then though?

ECP and GSF don't seem to stock a new 23.8mm 2 port master cylinder, I'll have to keep hunting, or get a rebuild kit

Posted 25th May 2016 at 11:51
fatlapit

Seasoned Pro

Location: STOCKSFIELD

Registered: 02 Nov 2010

Posts: 3,040

Status: Offline

Post #8
nope

________________________________________


Posted 25th May 2016 at 12:17
armzsc6

Seasoned Pro

Location: Crowborough

Registered: 22 Mar 2008

Posts: 3,445

Status: Offline

Post #9
Ignore the servo to begin with.... pump the pedal till hard (no servo assistance) then hold it down hard.... if it still sinks then slowly your fault is with the master cylinder or possibly the compensator leaking internally.

If the pedal stays rock hard and doesn't sink then the master should be ok and I'd try a new compensator / fit bias valve as said then swap the servo.

________________________________________

Black power baby! SUUUUUPERCHARGED Superman
Seat Leon FR TDI 190BHP 300lbft daily gti-6 killer :p
12x 306's owned so far

Cambelts, clutches, service work carried out on All makes and models, Peugeot Citroen / mitsubishi specialist.
Pug planet / Citroen Lexia diagnostics / code reads available.
Posted 25th May 2016 at 22:58
adam b

Seasoned Pro

Location: The Nam

Registered: 24 Jan 2006

Posts: 12,827

Status: Offline

Post #10
Tend to have issues with master cylinders over servos. Especially if they have been sat a while.

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Nothing to see here
Posted 25th May 2016 at 23:26
armzsc6

Seasoned Pro

Location: Crowborough

Registered: 22 Mar 2008

Posts: 3,445

Status: Offline

Post #11
Also the servo is a bas**rd to change. Only a couple of hours but all awkward. Did one on Aaron6's Mrs 306 hdi a while ago.

________________________________________

Black power baby! SUUUUUPERCHARGED Superman
Seat Leon FR TDI 190BHP 300lbft daily gti-6 killer :p
12x 306's owned so far

Cambelts, clutches, service work carried out on All makes and models, Peugeot Citroen / mitsubishi specialist.
Pug planet / Citroen Lexia diagnostics / code reads available.
Posted 26th May 2016 at 07:45

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