GolfGTIforum.co.uk
General => The garage => Topic started by: DogDay on 15 April 2007, 22:34
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Mk3 diesel with mk2 238 mm vented disks on the front & standard drums on the back.
When I press the brake pedal down not a lot happens for about 3+ inches... :undecided: it just seems to take way too much travel & pressure to stop the car - am losing confidence in it. The brakes just feel soft. I have some very big & long hills (13%) on my 55 mile commute...
The front disks & pads are new, and I put new brake fluid in & bled the buggers until it was clean & bubble free front & back.
whats next - master cylinder? what else could it be? there are no leaks, but my hand brake only works on the drivers side at the mo (another bloody job!) - but all four wheels will lock if i stamp hard enough...
DD :cool:
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have you tried the servo trick? and when you bled them, did you push the pedal too low, possibly shot the master cylinder, we had the same on mine, pedal hit the floor during bleeding :sad:
oh and also my enine came from a non servo model so, we had no servo assist, have you tried expelling all air form the srvo bby pupming the pedal till tis tight with engine off, then place foot on pedal and it should drop with engine start up :cool:
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servo trick? :huh:
i pumped the brakes like you suggested and yes the pedal went rock hard, but when the engine started it went soggy & mushy again.
maybe i've been spoiled by driving the missus's 07 reg astra - but i'm sure the brakes have degraded quite significantly recently... :undecided:
DD :cool:
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yeh thats jsut to check yuor servo is alright, so it aint that, as i say i had that problem, next job is the master cylinder, mine was sh!te, swapped it and the difference was obviously immense :wink:
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cool dude - thanks - guess I know what I'm doing today.... :wink:
DD :cool:
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I have this problem. my brakes are pretty pathetic, even though its only a 1.4L they don't feel good at all.
The first thing i did was make sure the auto adjusting mechanism on the rear drums was working, apparently mine isn't and it made it worse so im currently in the process or pulling the shoes back out further.... I wont be able to let you know if it made any difference until i have some shocks on my car but i'm hoping it will firm it up a bit. :smiley:
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bugger bugger bugger bugger!!!!!!
changed the master cylinder no probs - whilst re-bleeding the brakes notice that the little anti-rattle spring clips in the caliper are missing - have a spare set so decide to quickly whap them in - blooming caliper bolt has sheared :sick:
got a replacement from the local stealers (£4 for a bloody bolt & sleeve :angry:) but cannot get the sheared bit out so far have managed to drill a small hole through the middle of the remains of the bolt but don't want to fcuk the thread up - had a set of the bolt removal thingys... have sheared / snapped two of them so far (and 2 drill bits) - have tried with an impact driver - no dice - HELP! :cry:
DD :cool:
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oh how i love re-tapping threads into cast iron with limited access :sad:
still - alls well that ends - sorted :smiley:
done now - & what a difference - much better brakes & the pedal doesn't hit the floor anymore. Next job rear brakes & handbrake - but not this weekend...
DD :cool:
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You ever suffered with glazing? I only ask cause I think mine have gone that way a the moment, as the stopping has got worse with an immense amount of pad, no disk wear, and they were only fitted in august! :angry:
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not off hand no... have you tried pulling the pads out and taking abit of sandpaper to them?
better still a new set of pads would answer that one one definatively & even if it didn't fix it you'd stil have spare set of pads! and besides - what a great excuse for getting a set of green stuff pads :wink:
DD :cool:
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I've heard green stuff aren't what they are all cracked up to be? Mintex or Pagid isn't it? :huh:
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yeah pagid are good - but I likes greenies & they're waaay better than the halfraud's crap I have at the moment on this car
DD :cool:
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I've got unipart, lol, can feel the fade a fair bit tbh! might be since doing my hubs and that, maybe they picked up some grime and that, emery cloth is gonna be the key for now :cool:
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I've heard green stuff aren't what they are all cracked up to be? Mintex or Pagid isn't it? :huh:
EBC peas are good on the right set up. I would use them with groved power disc ATE the glaze never happens due to the groves exiting the gasses and leaving just the friction on pad to disc. Just don't go and buy red stuff they take ages to bite from cold if used on road. Bang for buck mintex are good performers!
:smiley:
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I'm only a 1.3, but maybe an upgrade is wrth looking into.. do grooves chew your pads at all, as of course its not flat to flat?
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I don't see the need for drilled or grooved disks for road use, or maybe I'm too old & slow :wink: ... and drive a diesel
the hill that leads into my town is big... I pop it into neutral on the moor & ride it down for two and a half twisty miles to sea level... large sections of it are an 12% gradient - top laugh on an empty road :laugh: - coming down off the moor on the way to work is dual carriageway - pop it into neutral at 60 mph at the top and come out the last corner and feed onto the motorway doing over 90mph still in neutral - man I LOVE gravity :evil:
I just have 238mm vented on the front & drums on the back with cheap pads - although the disks and the master cylinder etc are only a few months old at most.
even at the bottom when you can feel the heat radiating off the disks from like a foot away (& dumbass here actually licked his finger & touched the disk :shocked: ouch!) - no particular fade, still nice and responsive - the only thing I'm going to do is fit greenies & braided hoses. - it really does not need any more for road use IMHO.
DD :cool:
mind you big brakes do look sexy, but i'm too tight to get anything that isn't functional & preferably cheap or secondhand :embarassed:
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quality, my disks and pads, one of the rear cylinders, master cylinder and the fluid obviously, were all done fresh around august september time, theyre standard 1.3 jobbies though, solid 10mm disks, standard apds, drums at the back, we jsut cleaned up fully, shoes were alright at the time so..
maye a new set of pads are the key for now, the disks can wait and go vented when its really needed :grin:
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what diameter are your disks?
DD :cool:
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239mm mate
went and got some pagids today, softer compound, so im not forcing a mianly metal compound against wafer thin disks that are gonna heat up and fade as they are.. :cool:
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I may be talking out of my ar$e (again), but as far as I am aware you should be able to just swap over disks from a mk2 8v gti - like I did. 20mm vented - £30 odd for the pair. only difference is the pads are thinner - I think is like 15mm instead of 19mm.
but check with the cleverer guys here 1st :undecided:
Should be fun with your new pagids :wink:
DD :cool: