Brake Screech

[ak_stylez]

Hey everyone,

Here's the story...

I bought a full set of rda slotted and ebc red stuff back in august. i had them professionally installed and bed-in by my local mechanic and immediately they were exhibiting some unusual brake squeal.

it was unusual in that, the harder i pressed the brakes, the louder the noise became. regardless of how warm or hot the brakes got the screech was ever present. in fact when the pads got hotter the noise seemed to get louder! the only silence I had was on the first few brakes in the morning after the car had been sleeping over night.

After searching on the forums I tried using some of that red brake goo, but that did exactly diddly squat. the noise was still there with no change.

I took the car to a few performance workshops, and they all said it was because of my combination of rda rotors and ebc redstuff. both being hard, the pads weren't able to "bite" into the rotor and so they slipped (vibrated) across and made the noise. all the workshops recommended that if I put some ebc greenstuff instead it'd be all sweet and dandy.

So...

just recently i got some green stuff (again with professional installation and bed in). much to my dismay the noise is still there, albeit with different behaviour.

this time if i run the car through a series of hard braking (60 to 10 kmh about 7 times), the pads go completely silent... until they cool (even after a few minutes) where the noise slowly increases as the pads cool further.

also, at normal street driving temperatures, the pads seem to squeak (slightly) less if i press hard. but they're still pretty damn loud either way, sometimes almost deafening.

I've run out of ideas, and moreover this squeaking is making me DREAD the thought of driving my car . something no skyline owner should have to experience!

can anybody PLEASE offer any suggestions? if you live in melbourne and think you might have a solution I'd be more than happy to meet you somewhere and pop ur ear drums for u (yes it really is that bad sometimes) if you can help me fix my problem you WILL be rewarded!. I'm getting pretty desperate and i fear my sanity is fast deteriorating

[DjeMz]

reward... buttsecks?

[ak_stylez]

if thats what it takes

[nuffsaid]

Could it be the RDA rotors? ive seen their name come up a bit in brake squealing threads.

[ak_stylez]

Could it be the RDA rotors? ive seen their name come up a bit in brake squealing threads.

are you suggesting faulty rotors or that's just the way they are?

[Scooby]

the squealing is a resonance in the disc making it act like a bell. try descaling the hubs, backs of the wheels, and the disc mounting surfaces. its been known to eliminate brake noise. also try using some el cheapo pads like Ferodo XL. the red stuff squealing doesn't surprise me, way too hard for the road. for that matter unless you're always running the greenstuff at optimum temp it won't be coating the disc with compound and will also be more prone to squeal.

[ak_stylez]

hey scooby.

can you recommend a good descaling agent?

and what do you mean by the backs of the wheels? on the actual rim?

Thanks

[DjeMz]

ya take ur wheel off n look at all the black shit on the back of the rim (around where the studs go in)...

i guess degreaser + a golly good scrub?

[ak_stylez]

scooby?

can anyone else recommend a suitable descaling agent to use? not sure what that is...