Disc Brake Squeal

[SteveSRT8]

Originally Posted By: KenO
Originally Posted By: SteveSRT8
Most folks never get that bedding must be gauged to the type of car and brakes. Small econoboxes with tiny little brakes don't need much, faster cars with bigger brakes and more swept area, etc., need a lot more stops from higher speeds.

Then there's the pad material, which must be taken in to account also. There's a ton of variables, and most cars never need the procedure anyway, just for us road course nuts...



True, but it's certainly nice when you 'fix' somebody's noisy brakes by 'beating on them', and they look at you very confused like.


Agreed 100% I have fixed many a friends 'squealers' by simply running them up to high speed and putting them down hard just before ABS. It really does work as long as everything is up to snuff...

 

[CharBaby]

Originally Posted By: Char Baby
Originally Posted By: KenO
Originally Posted By: Char Baby
I know there are two schools of thought on bedding in brakes. I'm not one for bedding in the pad with 10-30 stops!
I just drive normaly and all is GOOD! Has been for over 40 years.

When I have bedded in brakes by doing the many stops, I also had rotor problems sooner...like in 2-3 months! Just my .02cents

10-30 stops seems excessive, bed-in procedure varies by pad manufacturer. Here's a link from Tirerack with a variety of pad manufacturers bed-in procedures. Also, fwiw, the entire process is to transfer a layer of brake pad friction material, at a molecular level, to the surface of the brake rotor. No offense, but if you bedded in pads and had rotor issues, then you did something wrong.

http://www.tirerack.com/brakes/tech/techpage.jsp?techid=85



Yep, probably did something wrong! That's why I just drive my vehicles normaly after a pad change and get at least 4 years out of my rotors before having to change them out due to all of the rust from road salt in my area/winters.

And this rotor issue usually happened with the smaller vehicles, not the full size of SUV's.

After reading the tirerack link on bedding in brakes, some brake mfg's mention..."avoid heavy braking during the first 500 miles". Akebono & ATE mention this!


AKEBONO

400 to 500 miles of moderate driving is recommended. Consumer should avoid heavy braking during this period.

ATE

400 to 500 miles of moderate driving is recommended. Consumer should avoid heavy braking during this period.

 

[CharBaby]

Originally Posted By: Wingman
I applied the caliper grease to the pins and the back of the pads and the squeal is gone. This is something I have never done when I replaced my brake pads, but I will from now on. I will also "bed" the pads from now on also. Thanks for all the great advice. Problem solved!!!


Keep us posted should the noise return! If so, repeat the lube process!

I have had to relube the pins/backing plates in a couple of instances but, not often!