View Full Version : EBC Greenstuff Pads Noisy brake-in Squeal
Monster Inc
04-10-2006, 06:46 AM
To others who've fitted Greenstuff Pads,
Did you have much squealling during the brake in phase of the pads?
I've done about 200km with them and they squeal quite loudly under light braking. Moderate braking is quiet though - And no grinding noise. And yes I put the adhesive anti-squeal shims on them before installing. The box they came in notes that they will be noisy for a while but I wondered what others have experienced.
I have to say though, I'm glad I've got the seatbelt on though cause they pull up fast even under light braking. The first brake application in the morning feels like a stock pad (from cold) but after that they bite very nicely.
Matty_J
04-10-2006, 07:56 AM
I think thats the same with most pads, i have tried over 5-6 different brands in the last year or so and they all have the same affect where they squeal at light breaking and quiet at moderate to heavy braking, so ill be looking at a brake upgrade eventually!!
Monster Inc
04-10-2006, 08:00 AM
I think thats the same with most pads, i have tried over 5-6 different brands in the last year or so and they all have the same affect where they squeal at light breaking and quiet at moderate to heavy braking, so ill be looking at a brake upgrade eventually!!
A few months ago I fitted some Bendix CT's with 276mm RDA slotted rotors and they didn't make a single squeak. But they aren't performance pads so it's probably not comparable.
:doubt:
jowet
04-10-2006, 10:40 AM
yes i had the same thing!, though they never stopped squeaking , it gets really tiring.
be careful to check them reg. as mine (2 of the 4 up front) de-laminated from their backing plates after 10thousKm.
DaJaJa
04-10-2006, 10:58 AM
i have DBA slotted rotors and ferrodo pads,.... no sqeeks....
they are starting to make noises now as 1.5 years later, they need changing...
Monster Inc
04-10-2006, 11:24 AM
yes i had the same thing!, though they never stopped squeaking , it gets really tiring.
be careful to check them reg. as mine (2 of the 4 up front) de-laminated from their backing plates after 10thousKm.
ShhT! that's F'n scary! I hope they settle down. In my covered carpark at work they are... Attention grabbing.
Did you machine your disk before the new pads went in?
Monster Inc
05-10-2006, 09:49 AM
Did you machine your disk before the new pads went in?
Not sure who you're asking but for me my rotors were brand new RDA's Slotted. Part of my Brake Upgrade.
Yep was asking you.
So you put brand new rotors AND brand new pads in at the same time?
Cause that is a big no no :confused:
Phonic
05-10-2006, 11:03 AM
Yep was asking you.
So you put brand new rotors AND brand new pads in at the same time?
Cause that is a big no no :confused:
Why do you say this? What the difference between new pads on new rotors and new pads on freshly machined rotors?
When I got new slotted rotors from the brake & clutch specialist next door they put new pads on at the same time.
Redav
05-10-2006, 11:27 AM
I think mine squealed a little. That's gone now. Now they just grind
Monster Inc
05-10-2006, 11:31 AM
Yep was asking you.
So you put brand new rotors AND brand new pads in at the same time?
Cause that is a big no no :confused:
That's news to me :doubt: . HighTek Brakes who sold me the rotors and pads didn't run around pulling their hair out saying you'd better rough your rotors up cause if you don't you'll be sorry.
They gave me a can of brake cleaner, told me to clean the oil off properly and follow the instructions from ebc regarding bedding in...Which I am currently doing.
I know you don't put new pads with scored rotors and old pads with new rotors. But hey, that's completely different.
Taken from DBA
"Generally it is not recomended to bed new rotors and new pads together. The reason being that during the bedding process of the pads, excess resin from the pad material is expelled. Bedding the rotor is done to season the rotor material which relieves stresses and lines the rotor braking surface with a light even coating of resin material. Depending on the type of resin in a new pad this can be like pouring a jug of gravy onto the rotor surface and expecting it to be an even layer. DTV from resin wipe off is the result. The amount of DTV that can be generated is dependant on the type of pad. Sometimes its none and on other occasions brake shudder is totally unaceptable. When people say they have warped their rotors bedding in or in the first 1500 kms its generally resin wipe off."
Monster Inc
05-10-2006, 12:02 PM
Taken from DBA
"Generally it is not recomended to bed new rotors and new pads together. The reason being that during the bedding process of the pads, excess resin from the pad material is expelled. Bedding the rotor is done to season the rotor material which relieves stresses and lines the rotor braking surface with a light even coating of resin material. Depending on the type of resin in a new pad this can be like pouring a jug of gravy onto the rotor surface and expecting it to be an even layer. DTV from resin wipe off is the result. The amount of DTV that can be generated is dependant on the type of pad. Sometimes its none and on other occasions brake shudder is totally unaceptable. When people say they have warped their rotors bedding in or in the first 1500 kms its generally resin wipe off."
I'm not sure I like the idea of putting old worn pads with a new rotor. Doesn't make sense to have to go back and remachine a rotor when the old pads finally clackout.
Probably why EBC and Other manufacturers are now putting brake-in coatings on most of their new pads. Still a freshly machined rotor face (no resin) will still cop jugs of resin as much as a new rotor. Stress relief would be the only difference.
And to reiterate, I have not experienced undesirable pulsing, judder or pulling. Just a high pitch squeal at light application of the pedal. Medium pedal is strong, even and quiet. And I haven't crunched the brakes yet so I do not know their characteristics on the border of traction slip.
My guess is the squeeling is being caused by glazed rotors and or pads (ie 'burnt) by not bedding in correctly.
Try pulling the pads out and taking off the surface but rubbing them on rough concrete or similar.
Monster Inc
05-10-2006, 01:32 PM
My guess is the squeeling is being caused by glazed rotors and or pads (ie 'burnt) by not bedding in correctly.
Try pulling the pads out and taking off the surface but rubbing them on rough concrete or similar.
I've checked the Rotors and they aren't glazed. EBC actually state Squealling is normal for first 500 miles whilst the rotors are bedding in. So, For the time being I'll turn up the radio.
The point of this thread was to draw on other users of GreenStuff and their experience with said product. So if others with/had greenstuff have any comments, I'd appreciate your comments.
And Thanks for your input too TL-R.:D
DOG13S
05-10-2006, 04:46 PM
Had EBC Greestuff as my last set of pads, no squealing at all, they didnt last very long though, I only got 13000kms out of the front set, but were excellent at stopping the vehicle with little dust. I got 21000kms out of the standard mitsubishi pads. I currently have Lucas (Lots of dust, cheap and brake well) while wearing out my rotors then will be changing to slotted RDA's with EBC Bluestuff pads.
Magnette
06-10-2006, 12:10 AM
Keep the can of brake cleaner in your glovebox and squirt the pads a bit in-situ
to remove the accumulated brakepad & break-in dust, usually stops the squeal sooner?
Ulciscor
06-10-2006, 04:26 AM
ive got green stuff pads in my Pug <-----
yes they squeel, and they make ALOT of brake dust, but they sure are grippy.
the squeel like previously stated is only under light braking. and mine is only quiet.
if u dont like it, wind up your windows and crank the music.
el3ment
06-10-2006, 07:31 AM
I've had RDA rotors and RDA break pads for almost 8months now. They still skeal like hell. They break really well though. I had grinding noise coming from front left for the first few months, but that is gone now too. Aren't RDA and EBC the same company? or made by the same company?
Monster Inc
06-10-2006, 07:46 AM
I've had RDA rotors and RDA break pads for almost 8months now. They still skeal like hell. They break really well though. I had grinding noise coming from front left for the first few months, but that is gone now too. Aren't RDA and EBC the same company? or made by the same company?
Essentially their the same company but components are not necessarily made on the same production line.
I know RDA rotors are made in the UK and slotted in Australia but they are heaps cheaper than EBC rotors which are also made in the UK. Probably still in a different factory though. I had to snap up My RDA rotors (last on shelf) otherwise I would have had to have waited a couple of weeks for a new batch.
I'd be a bit concerned about continuous brake squeal after 8 months. Have you tried any anti-squeal goo between the pads and shims? I had a set of RDA pads for the standard magna rotors (DB1203) but the stupid things wouldn't fit in the brackets. They were about 1.5mm to long:nuts: . So I ended up returning them for the Bendix CT's that were nice and quiet and fit perfectly. (As you'd expect)
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