Tuesday, September 18, 2007 - 11:13 am, by: Adam Peterson(President)
Each time i apply the brakes the car makes an annoying squeal and high pitched squeak. I have heard worn out brake pads before but this is the typical dirty brake pad sound etc. Or is it? Is there a way to get rid of it ? The missus has a migrane
Tuesday, September 18, 2007 - 06:50 pm, by: Murray Lund(Murray)
Adam, I had this problem in my car. First thing to check - are the pad return springs fitted?
I found the pads in the car when I bought it (probably cheapies from compliancing) use to glaze up. I could pull them out, rub them with emery paper and the squeal would go for a few weeks, but would then return.
I fitted new better quality pads and haven't had the problem since. Murray
Adam Peterson Goo Roo Western Australia Bugatti Veyron
Monday, December 29, 2008 - 08:22 am, by: Matthew Sharpe(Madmatt)
I recently replaced my front and rear brake pads.
In my case all my original plates, clips and springs were present.
As per usual I removed the old pads, backing plates, anti-rattle clips etc, and cleaned all with brake cleaner and a stiff brush. Upper right rear caliper slide was also jammed as the rubber dust cover had popped off allowing it to gum up with brake dust, so dis-assembled, cleaned and re-lubricated with copper grease.
After 200km bedding in, the new rear pads were squealing very loudly at low speeds - very embarrassing!
Got a tip from a motoring show on Sky called "Wrecks to Riches" saying a good way to fix squealing brakes is to use copper grease on the backing plates.
Copper grease is a very high temperature anti-lock lubricating compound. It retains its lubricating and anti-lock properties at temperatures in excess of 1000 degrees celsius so its perfect for brake and engine applications.
Normally I'd buy a can of expensive anti-squeal spray, and treat the backings of the pads with that, but these days with one income I try to save money, and I already have a huge tub of copper grease as I use it for everything from spark plug threads to brake caliper slides.
Again I removed the rear pads, coated the back of each pad with copper grease as well as the guiding edges, then the inner pair of backing plates with copper grease, replaced and replaced outer pair of backing plates then greased the caliper contact points (piston ring on the inside, and forks on the outside.) Be very careful not to get any on the pad compound or brake rotor.
Replaced pads & springs once again, wheels etc. Done!
Took it for a test drive and there was some initial squeaking, but after about 2km, it became totally quiet, and has been ever since! Saved myself about $30!
Monday, December 29, 2008 - 08:06 pm, by: Scott Wilkes(Scottywilkes)
copper grease works great. What i also do when we have cars come into the workshop with nearly new brake pads is roughen up the friction surface and chamfer the edges of the pads, the flat surfaces sometimes create a resonating effect which can cause squeeling.
Monday, December 29, 2008 - 09:26 pm, by: David Janiec(Davidj)
How about a dull drone/groan sound when almost reaching a complete stop?
My brakes work well, changed the pads a month ago with new bendix ones - old ones did it (no idea what they were) and the new ones do it, can't be pads.
Running enlarged front and rear rotors from a Supra all have been skimmed.
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