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Model specific boards => Golf mk3 => Topic started by: sharki786 on 01 December 2012, 22:16
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started to notice that after i have used my brakes quiet abit, when i press the pedal again its realy hard & the car slows down but not the way it did before the pedal went hard.
been told its brake fade? whats that?
been told my brake fluid is boiling?
been told its the master server?
my pads need chaging soon but theres 4-6mm meat left on the pad.
anyone help outings?
thanks
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Time for pad change mate if your burning them up,defo brake fade you getting,not enough meat on the pads to take lots of harsh braking,a layer of gas builds up between the pads and disc stopping full contact between them,get some quality pads and discs on there :wink:
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ive got green stuff on them atm. The disks did have grooves on them but they have worn off. Lol
going to get some new pads, disks, braided hoses & rebuild my calipers & paint them.
Defo not the master cylinder?
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It could be but the pedal will be hard from as soon as you start the car. Plus most likely to go soft. If anything it would be brake servo not assisting, but again it would do that from as soon as you start it.
I hate green stuff because they do fade when hot and it doesn't take much to get them hot, also don't work from cold
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Greenstuff pads don't work from cold? must admit i don't get that..
I have em fitted allround, i new they weren't the best, i even knew the pad material had changed slightly for the worse but still, for your general stopping capabilities i don't see where they compromise unless your on a racetrack..
Sure your pads aren't just contaminated..?
I've seen too many folk going ott with wd40 and acf50 around brake calipers.
Christo
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Green stuff need to warm up before they give a good bite. There for don't work when cold, just like they don't work when they get hot!
Crap pads.
But by all means great for low brake dust on some nice wheels.
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Really i've no idea where they show up as that bad, at least within my normal type usage that is.
I suppose any road brake pad will show deficiencies if pushed to the limit, i don't notice where they are failing otherwise i'd have to change them probably, it must be me.. but the braking is supurb for my needs, though taking into account the whole braking system.
Christo
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Your pedal is soft because you have no pad left and the piston is travelling further.
It goes hard because you have taken up the slack and are then getting contact on the disc.
The braking is crap because the pads have no meat on them and overheat, also you have worn the grooves off the discs which means they are too thin for the calliper........
Pads have a vent in the middle of the friction material to let the gas layer out, when this is gone or worn away you lose contact pressure....
Green stuff are sh!te.
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think i have confused you guys lol :grin:
the brakes are good & brake pedal has a decent push when im driving but after using them realy hard a few times to slow/stop the car they go realy solid if i press again to slow/stop my car.
could someone explain to me what brake fade is?
yesterday i had same problem again, the brake pedal went hard after i used them to slow/stop my car, what i did this time was press them realy hard & it felt like a bubble in the pedal, the pedal only went down less then halfway & then felt the abs kick in & then the pedal went all the way down and stopped the car.
when the pedal is realy hard & i cant push more then halfway the braking is like sh1te & the car wobbles about lol (best way to describe it)
green stuff is good, they do let off VERY low dust compared to some pads out there :shocked:
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TO THE TOP!
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is the abs light on
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no it only comes on when the ignition is turned on then back off
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This may be something to check. When I did a vr6 conversion on my mk2 I initially used the 280mm setup with a second hand corrado brake master cylinder. When I drove the car for the 1st time the n/s/f wheel was locking up and the pedal feel stiffened. I ended up removing the brake hoses going to that wheel, checking them and ended up replacing the Rado brake master with a new G60 brake master which completely solved the problem. The Rado master had some form of blockage, due from rubber breaking down/being old so maybe you have a similar problem. Also brake hoses can collapse/deteriorate internally and a small flap of rubber inside can prevent fluid travelling one way or another causing a stiffer pedal or uneaven braking after you have presuurised the system from braking a few times.
Either trial and error fitting new parts or you could take it to a garage to see if the wheels are braking evenly, if not then it could be a hose/hoses, if they all brake evenly then it could be the brake master. Sounds like you have checked the servo for vacuum leaks as this has been mentioned previously.
Hope you get it fixed :tongue:
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see thats the fuuny thing. it dont happen all the time. it only happens hen i brake hard a few ties then th pedal will be solid & if i drove a mile or so the brake pedal goes back to normal (a nice push)
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Brake fade = the surfaces (disc/pad) get hot and then do not work as efficiently.
simples!
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Brake fade = the surfaces (disc/pad) get hot and then do not work as efficiently.
simples!
cheerio len :wink: