From tonight's SRT chat session at http://www.srtforums.com/:

Originally Posted by jlandbl
Any updates on a possible TSB for the brake squeal/rotor scoring issue on the Jeep SRT8? My dealer won't even look at my vehicle. They say the squealing (front passenger side only) is normal and there is nothing they can do.

"No tsb at this time....you could try a little copper paste on the edge of the pad backing plate....."

What?!?! On the "edge" what the hell kind of response is that?!

I think they are talking about the standard practice of putting a paste material on the back side of the pad, between the pad and the pistons.

Long been a solution for brake squeal.....

I think they are talking about the standard practice of putting a paste material on the back side of the pad, between the pad and the pistons.

Long been a solution for brake squeal.....

I'm clearly not a brake guy, but wouldn't one need to remove the pad to do this? Also, what the heck is copper paste?

Does anyone have a picture they could share that would show where to put the paste?

I also notice that the "squeal" is more of a scream if you go more than 4 days without washing your car in the winter conditions.

I have ordered the Copper Paste etc.I will apply and test it as soon as it arrives.

http://www.pelicanparts.com/cgi-bin/ksearch/PEL_search.cgi?command=show_part_page&please_wait=N&make=POR&model=928M&section=BRKmis&page=1&bookmark=0&part_number=WRTH-8938132

These Brembos are fantastic for brake work. Drive the two retaining pins out, slide the pads up and free, compress the pistons, and replace.

When the pads are loose from the vehcile, put the paste on the non-friction side of the pad, the backing plate side. You will probably see big circular marks from the pistons on the backing plate, simply put a bit of the paste on that circle.

Replace pads, pins, and clip (you will understand when you pull them apart) and voila.

You will spend more time jacking up the vehcile and removing the tire than you will with the pads themselves.

This copper paste application would simply be a temporary solution to this, correct? Would one have to reapply the copper paste on regular intervals?

It might be considered temporary, but remember this is SOP for normal brake work. I did not find any of this material behind my stock CSRT8 brake pads when I replaced them.

Yeah there was no such material behind my pads either! I replaced them with the C-tek pads and they have started squeeking again, after about 800 miles. Looks like the wheels are coming off again....I'll wait until I get the new rotors that ge2 has and do it all in one shot.

i replaced my stock pads (07) with the posi centric pads (still squeak but not as loud) and noticed that the stock pads had the copper paste on the back. i didnt put any on the posi centric pads. go figure. :confused:

If this issue is solved with anti-squeal that's awesome.

Alex

do the slotted rotors not squeal at all?

do the slotted rotors not squeal at all?
My left rear is beginning to squeal with the drilled and slotted rotors & C-Tec pads. I ordered the copper paste.

My drilled rotors squealed like a fat pig for about 2 weeks, but once they mated, all was perfect. I'd been through this in the past, but if I hadn't been assured, previously, that the squeal would go away, I would have ripped the brakes out.

My drilled rotors squealed like a fat pig for about 2 weeks, but once they mated, all was perfect. I'd been through this in the past, but if I hadn't been assured, previously, that the squeal would go away, I would have ripped the brakes out.

What sort of bedding procedure did you follow? I understand a good transfer of pad material to the fresh rotor helps with the squeak as well....

What sort of bedding procedure did you follow? I understand a good transfer of pad material to the fresh rotor helps with the squeak as well....
I bedded both the original and new set up per recommendations. The factory pads were bedded in twice within the first 300 miles. NEVER a squeak, I removed them because at 2,000 miles the rotors were being eaten alive. The new setup has been bedded in 4 times from 70 mph to 10mph, never a sign of fade. The rotor has a beautiful grey pad transfer on the mating surface with NO grooves on the drilled / slotted rotors. It has not cured my slight squeak from that left rear though.

The new setup looks great, I WILL get the squeak out of the left rear.

I don't recall reading anything in the owners manual about bedding the stock brakes?:confused:

I don't recall reading anything in the owners manual about bedding the stock brakes?:confused:
Sorry it is located in the SHOP manual. I purchased it before the HEMI was delivered. It is very similar to the Zeckhausen recommendations.
Bill

How are owners without shop manuals supposed to know this?
Ya shouldn't have to bed the brakes on a new vehicle anyway, Brembos or not.
Sorry for ranting, I just don't think a new vehicle should have these brake issues. :(

How are owners without shop manuals supposed to know this?
Ya shouldn't have to bed the brakes on a new vehicle anyway, Brembos or not.
Sorry for ranting, I just don't think a new vehicle should have these brake issues. :(
I agree, but I searched other high performance forums, guess what, it seems we all have a common problem, BMW, Porsche etc. Thats where yesterday I ordered the copper paste from a supplier to Porsche etc!! I just had front pads put on the SL yesterday at the Mercedes dealership and a line item was "brake paste". Maybe something to it.

Ya shouldn't have to bed the brakes on a new vehicle anyway, Brembos or not. (

You have to bed performance brakes.

I am surprised that it's not in the manual. I just assumed it was.

Alex

How are owners without shop manuals supposed to know this?
Ya shouldn't have to bed the brakes on a new vehicle anyway, Brembos or not.
Sorry for ranting, I just don't think a new vehicle should have these brake issues. :(It's not an issue specific to the SRT8 or to performance brakes. It's something that should be done with ALL cars, regardless of the brand. Most likely there are liability reasons for not including bedding instructions in the owner's manual. I've often seen bedding instructions in the manuals for police versions of vehicles, whereas the civilian version is missing those instructions.

The bedding process is intended to apply an even transfer layer of pad material onto the swept areas of the rotors. Once this transfer layer has been applied, you get to take advantage of a second mode of friction, called "adherent" friction. This is the molecular bonding of pads to the pad transfer layer under heat and pressure. As the rotor continues turning, these bonds are torn apart and, since they resist being torn apart, generate a higher coefficient of friction between pads and rotors. The physics of bedding is explained in a white paper by James Walker, the guy who (among other accomplishments) headed the vehicle dynamics team at Delphi that developed the ABS and stability control on my 2007 Corvette: http://www.stoptech.com/tech_info/wp_bedintheory.shtml.

Each time I buy a new car, I wait until the motor has been broken in, then I bed in the brakes. They become noticeably stronger and they tend to be much less prone to squealing. And bedding even serves as an inoculation against brake judder problems, often misdiagnosed as "warped" rotors. See: http://www.stoptech.com/tech_info/wp_warped_brakedisk.shtml for an excellent article on this by the late Carroll Smith.

Bottom line? Bedding is good for you. And it's fun to do. You should learn to love it! ;)

So did anyone try the copper paste with success (i.e. fixed squeal)?

So did anyone try the copper paste with success (i.e. fixed squeal)?
I tried the copper paste, the squeal came back.
I may buy some serious race pads from Zeck to remove the material on my rotors and then re-install the Centric Posi-Quiet Semi-Metallic pads.
Bill

My guy said he used "Silver" paste when he installed my Disc Italia rotors and Rotex pads. The combination was very loud for a week or two, but for the past 5 months or so they have been squeak and dust free.

Porterfield Brake Pads won't they make less brake dust? I had them on my benz. If they make for the Jeep I will get these.

here is the site that I got them from they have answer about quieter brakes

6 Steps to Quiet Brakes


I hope this will help everyone

http://www.formymercedes.com/porterfield.asp

LOL
High temp rtv will do the same thing this is so old school.