brake rotors

[veclubby]

hey everyone
noticed the other day wen a speeds below 50kmph theres a noise like the pads are rubbing on the rear discs....dunno what it is mate said that discs mite be warped but i thought i would get a braking shudder with that (coz i dont ave one). another mate said it could be a wheel bearing?? rotors are quite gouged and have a few circular gouges on them.

any ideas as to wat the prob is???

btw im pretty certain its both sides that are making the noise, and both are gouged

cheers
ryan

 

[wrx884]

Have u got much of the pads left on there?? i know b4 i changed my rotors the brakes themselves have a indicator 2 tell u wen the pads r gettin low like u described, u hear a sorta metal on metal grind isnt very loud but is wen u have no pads at all lol either uve started gouging ur rotors (but ud b able 2 notice that pretty disictivly) or the previous owner may have dun it 1nc b4? hope that helps.

They may just need re machineing and new pads

 

[grimavxs]

If you end up needing new rear rotors check out these guys on ebay

http://cgi.ebay.com.au/Holden-commo...534373QQihZ007QQcategoryZ102358QQcmdZViewItem

I just bought a set of 4 genuine GM rotors from them for $150 delivered

worked out be cheaper than machining for me

 

[veclubby]

the gouging was there wen i bought it hey...got a mechanic last time i was in mandra to check the pads and he said they were fine... that was a while back but mite get him to checkem wen i go down tommorrow.

if they need machineing ill prolly upgrade to some slotted ones from work...

cheers guys
ryan

 

[kenwstr]

Well there usually isn't anything to physicall pull the pads off the disc.
Just no pressure on them on so they are free to move a little and may contact the disc occasionally without causing undue noise. If the pads are worn to metal, you will hear them rattle on the disc.

How long since you had the brakes serviced properly? If they haven't been pulled down, cleaned, rekitted and lubricated they may be too stiff to fully release the pad pressure from the disc and be continually rubbing.


Ken

 

[veclubby]

Well there usually isn't anything to physicall pull the pads off the disc.
Just no pressure on them on so they are free to move a little and may contact the disc occasionally without causing undue noise. If the pads are worn to metal, you will hear them rattle on the disc.

How long since you had the brakes serviced properly? If they haven't been pulled down, cleaned, rekitted and lubricated they may be too stiff to fully release the pad pressure from the disc and be continually rubbing.


Ken

yeh good point... they haven't been done by me iv had the car for nearly 10 months, mate of mine did suggest this, mite look into it. should any mechanic be able to do this or will i need to see a brake specialist?

cheers
ryan

 

[kenwstr]

yeh good point... they haven't been done by me iv had the car for nearly 10 months, mate of mine did suggest this, mite look into it. should any mechanic be able to do this or will i need to see a brake specialist?

cheers
ryan

The Answer is Yes any mechanic should but the question is will they.
I found that despite all services being signed off on my VR log when I bought it, the rear brakes were practically inoperative because they had never been flushed through in the life of the car let alone actually serviced. It is common practice by some mechanics to just top up with fresh fluid so it looks good.

Never ever let a dealership service your car, they are in the business of cheapest cost to them bandaid treatment until the warrenty runs out. In my experience, they don't care how many times you bring the car back, they will not fix it properly. It seems to get to be a culture thing that applies to all their work.

You need a mechanic you can trust to do the job properly even with simple jobs like this. It's simple enough to do yourself but you will need a good compressor to be sure you can blow the cups out.

Ken