johnr@tekig4.UUCP (John Rettig) (10/15/85)
<> I recently changed the brake pads on the vented front disks on my (Mitsubishi) Dodge D-50. Being somewhat environmentally oriented and maybe somewhat more conscious that I would most likely be the one to change them next time, I spent a couple of dollars extra for asbestos free, non-metallic pads. Up until then, I never got squeals. With the new pads in place, the front disks immediatly started squealing when the brakes were applied, generally at all speeds and most conditions - dry, wet, whatever. Nothing changed once I was past a reasonable break-in period. The only time they won't squeal is after they have been warmed up by several consecutive stops. I have tried washing with brake parts cleaner and IPA, to no avail. Has anyone had a similar experience and solved it?
hank@masscomp.UUCP (Hank Cohen) (10/18/85)
In article <324@tekig4.UUCP> johnr@tekig4.UUCP (John Rettig) writes: ><> >I recently changed the brake pads on the vented front >disks on my (Mitsubishi) Dodge D-50. ... > >Up until then, I never got squeals. With the new pads >in place, the front disks immediatly started squealing > ... >I have tried washing with brake parts cleaner and IPA, >to no avail. > >Has anyone had a similar experience and solved it? The single most common cause of brakes squealing after being relined has nothing to do with the composition of the brake pads or shoes used. The problem occurs both with disk and with drum brakes and is caused by a lack of lubrication. All metal bearing surfaces should be LIGHTLY! greased with some high temperature grease. The best stuff I ever saw was some speacially formulated stuff from GM but I have never seen this commercially available. Moly grease is fine, so is lithium or white grease. Don't use axel grease or that brown wheel bearing grease; it can't take the heat and will bleed onto the friction surfaces. Washing the parts in brake cleaner can only make the problem worse by removing any vestige of lubrication. The lubrication should be applied to the little bearing pads on the backing plate of drum brakes and to the edged of the pads the bearing surfaces o
wrc@whuts.UUCP (CLEGG) (10/18/85)
> <> > I recently changed the brake pads on the vented front > disks on my (Mitsubishi) Dodge D-50. Being somewhat > environmentally oriented and maybe somewhat more > conscious that I would most likely be the one to > change them next time, I spent a couple of dollars > extra for asbestos free, non-metallic pads. > > Up until then, I never got squeals. With the new pads > in place, the front disks immediatly started squealing > when the brakes were applied, generally at all speeds > and most conditions - dry, wet, whatever. Nothing > changed once I was past a reasonable break-in period. > The only time they won't squeal is after they have been > warmed up by several consecutive stops. > > I have tried washing with brake parts cleaner and IPA, > to no avail. > > Has anyone had a similar experience and solved it? I have had a similar problem with my '81 Plymouth Champ (Mitsubishi). I attributed it to the brake pads also but was never 100% sure. At first I thought that I had worn the brake pads down to metal but upon examination, I had plenty left so I more or less ignored it. I can't say too much about the composition of the pads although the supplier said I had two choices. One was a long wear harder composition and the other was softer and would not have as much mileage. I chose to go with the softer pad thinking there was less wear on the rotors that way.